ci: move .github/workflows to .gitea/workflows for Gitea Actions

Gitea's GITHUB_TOKEN authenticates against git.farh.net, not ghcr.io.
Use explicit GHCR_USERNAME and GHCR_TOKEN secrets instead.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [main]
+    branches: [main, dev, uat]
   pull_request:
-    branches: [main]
+    branches: [main, dev, uat]
 
 concurrency:
   group: ci-${{ github.ref }}
@@ -13,16 +13,18 @@ concurrency:
 permissions:
   contents: write
   packages: write
+  security-events: write
 
 env:
   REGISTRY: ghcr.io
   IMAGE_NAME: cartsnitch/cartsnitch
-  AUTH_IMAGE_NAME: cartsnitch/auth
   RECEIPTWITNESS_IMAGE_NAME: cartsnitch/receiptwitness
+  API_IMAGE_NAME: cartsnitch/api
+  AUTH_IMAGE_NAME: cartsnitch/auth
 
 jobs:
   lint:
-    runs-on: runners-cartsnitch
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
@@ -36,7 +38,7 @@ jobs:
         run: npx tsc --noEmit
 
   test:
-    runs-on: runners-cartsnitch
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
@@ -47,8 +49,20 @@ jobs:
       - name: Run tests
         run: npx vitest run
 
+  audit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+      - run: npm ci
+      - name: Check for vulnerabilities
+        run: npm audit --audit-level=high
+
   e2e:
-    runs-on: runners-cartsnitch
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
@@ -59,11 +73,38 @@ jobs:
       - run: npx playwright install --with-deps chromium
       - run: npx playwright test
 
+  lighthouse:
+    runs-on: ubuntu-latest
+    needs: [test]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+      - run: npm ci
+      - run: npm run build
+      - name: Install Chromium for Lighthouse
+        run: |
+          npm install -g playwright
+          npx playwright install --with-deps chromium
+      - name: Start preview server
+        run: |
+          npm run preview &
+          npx wait-on http://localhost:4173/ --timeout 30000
+      - name: Run Lighthouse CI
+        run: |
+          CHROME_PATH=$(find /home/runner/.cache/ms-playwright -name chrome -type f 2>/dev/null | head -1)
+          npm install -g @lhci/cli
+          CHROME_PATH="$CHROME_PATH" lhci autorun --chrome-flags="--headless=new --no-sandbox --disable-gpu --disable-dev-shm-usage"
+
   build-and-push:
-    runs-on: runners-cartsnitch
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
     needs: [lint, test, e2e]
     outputs:
       calver_tag: ${{ steps.calver.outputs.version }}
+      sha_tag: sha-${{ github.sha }}
     steps:
       - uses: actions/checkout@v4
         with:
@@ -86,13 +127,20 @@ jobs:
           echo "version=$VERSION" >> "$GITHUB_OUTPUT"
           echo "CalVer tag: $VERSION"
 
+      - name: Log in to Docker Hub
+        if: github.event_name == 'push'
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
       - name: Log in to GHCR
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        if: github.event_name == 'push'
         uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_TOKEN }}
 
       - name: Extract metadata
         id: meta
@@ -100,85 +148,59 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
-            type=sha,prefix=sha-
+            type=sha,prefix=sha-,format=long
             type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
             type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
 
-      - name: Build and push Docker image
+      - name: Build Docker image
         uses: docker/build-push-action@v6
         with:
           context: .
-          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+          load: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           target: prod
           cache-from: type=gha
           cache-to: type=gha,mode=max
 
+      - name: Scan frontend image for vulnerabilities
+        uses: anchore/scan-action@v5
+        id: scan
+        env:
+          GRYPE_CONFIG: .grype.yaml
+        with:
+          image: "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.sha }}"
+          fail-build: true
+          severity-cutoff: high
+          only-fixed: "true"
+          output-format: sarif
+
+      
+
+      - name: Push Docker image
+        if: github.event_name == 'push'
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          target: prod
+          cache-from: type=gha
+
       - name: Create git tag
         if: github.event_name == 'push' && github.ref == 'refs/heads/main'
         run: |
           git tag "v${{ steps.calver.outputs.version }}"
           git push origin "v${{ steps.calver.outputs.version }}"
 
-  build-and-push-auth:
-    runs-on: runners-cartsnitch
-    needs: [lint, test, e2e]
-    outputs:
-      calver_tag: ${{ steps.calver.outputs.version }}
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Generate CalVer tag
-        id: calver
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-        run: |
-          DATE_TAG=$(date -u +%Y.%m.%d)
-          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
-          if [ -z "$EXISTING" ]; then
-            VERSION="$DATE_TAG"
-          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then
-            VERSION="${DATE_TAG}.2"
-          else
-            BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//")
-            VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"
-          fi
-          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
-
-      - name: Log in to GHCR
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Extract metadata (auth)
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ env.REGISTRY }}/${{ env.AUTH_IMAGE_NAME }}
-          tags: |
-            type=sha,prefix=sha-
-            type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
-            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
-
-      - name: Build and push auth Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: ./auth
-          file: ./auth/Dockerfile
-          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-
   build-and-push-receiptwitness:
-    runs-on: runners-cartsnitch
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
     needs: [lint, test]
     outputs:
       calver_tag: ${{ steps.calver.outputs.version }}
+      sha_tag: sha-${{ github.sha }}
     steps:
       - uses: actions/checkout@v4
         with:
@@ -195,13 +217,20 @@ jobs:
           else BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//"); VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"; fi
           echo "version=$VERSION" >> "$GITHUB_OUTPUT"
 
+      - name: Log in to Docker Hub
+        if: github.event_name == 'push'
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
       - name: Log in to GHCR
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        if: github.event_name == 'push'
         uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_TOKEN }}
 
       - name: Extract metadata
         id: meta
@@ -209,38 +238,236 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.RECEIPTWITNESS_IMAGE_NAME }}
           tags: |
-            type=sha,prefix=sha-
+            type=sha,prefix=sha-,format=long
             type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
             type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
 
-      - name: Build and push receiptwitness image
+      - name: Build Docker image
         uses: docker/build-push-action@v6
         with:
           context: .
           file: ./receiptwitness/Dockerfile
-          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+          load: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ github.run_id }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Scan receiptwitness image for vulnerabilities
+        uses: anchore/scan-action@v5
+        id: scan
+        env:
+          GRYPE_CONFIG: .grype.yaml
+        with:
+          image: "${{ env.REGISTRY }}/${{ env.RECEIPTWITNESS_IMAGE_NAME }}:sha-${{ github.sha }}"
+          fail-build: true
+          severity-cutoff: high
+          only-fixed: "true"
+          output-format: sarif
+
+      
+
+      - name: Push Docker image
+        if: github.event_name == 'push'
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./receiptwitness/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ github.run_id }}
+          cache-from: type=gha
+
+  build-and-push-api:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+    needs: [lint, test]
+    outputs:
+      calver_tag: ${{ steps.calver.outputs.version }}
+      sha_tag: sha-${{ github.sha }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate CalVer tag
+        id: calver
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        run: |
+          DATE_TAG=$(date -u +%Y.%m.%d)
+          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
+          if [ -z "$EXISTING" ]; then VERSION="$DATE_TAG"
+          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then VERSION="${DATE_TAG}.2"
+          else BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//"); VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"; fi
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+
+      - name: Log in to Docker Hub
+        if: github.event_name == 'push'
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Log in to GHCR
+        if: github.event_name == 'push'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_TOKEN }}
+
+      - name: Extract metadata (API)
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.API_IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=sha-,format=long
+            type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: ./api
+          file: ./api/Dockerfile
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ github.run_id }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Scan api image for vulnerabilities
+        uses: anchore/scan-action@v5
+        id: scan
+        env:
+          GRYPE_CONFIG: .grype.yaml
+        with:
+          image: "${{ env.REGISTRY }}/${{ env.API_IMAGE_NAME }}:sha-${{ github.sha }}"
+          fail-build: true
+          severity-cutoff: high
+          only-fixed: "true"
+          output-format: sarif
+
+      
+
+      - name: Push Docker image
+        if: github.event_name == 'push'
+        uses: docker/build-push-action@v6
+        with:
+          context: ./api
+          file: ./api/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ github.run_id }}
+          cache-from: type=gha
+
+  build-and-push-auth:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+    needs: [lint, test]
+    outputs:
+      calver_tag: ${{ steps.calver.outputs.version }}
+      sha_tag: sha-${{ github.sha }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate CalVer tag
+        id: calver
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        run: |
+          DATE_TAG=$(date -u +%Y.%m.%d)
+          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
+          if [ -z "$EXISTING" ]; then VERSION="$DATE_TAG"
+          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then VERSION="${DATE_TAG}.2"
+          else BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//"); VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"; fi
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+
+      - name: Log in to Docker Hub
+        if: github.event_name == 'push'
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Log in to GHCR
+        if: github.event_name == 'push'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_TOKEN }}
+
+      - name: Extract metadata (auth)
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.AUTH_IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=sha-,format=long
+            type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: ./auth
+          file: ./auth/Dockerfile
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ github.run_id }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Scan auth image for vulnerabilities
+        uses: anchore/scan-action@v5
+        id: scan
+        env:
+          GRYPE_CONFIG: .grype.yaml
+        with:
+          image: "${{ env.REGISTRY }}/${{ env.AUTH_IMAGE_NAME }}:sha-${{ github.sha }}"
+          fail-build: true
+          severity-cutoff: high
+          only-fixed: "true"
+          output-format: sarif
+
+      
+
+      - name: Push Docker image
+        if: github.event_name == 'push'
+        uses: docker/build-push-action@v6
+        with:
+          context: ./auth
+          file: ./auth/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ github.run_id }}
+          cache-from: type=gha
 
   deploy-dev:
-    runs-on: runners-cartsnitch
-    needs: [build-and-push, build-and-push-auth, build-and-push-receiptwitness]
-    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    needs: [build-and-push, build-and-push-receiptwitness, build-and-push-api, build-and-push-auth]
+    if: always() && !cancelled() && github.event_name == 'push' && (github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/main')
     steps:
-      - name: Generate GitHub App token
-        id: app-token
-        uses: actions/create-github-app-token@v1
-        with:
-          app-id: ${{ secrets.CARTSNITCH_APP_ID }}
-          private-key: ${{ secrets.CARTSNITCH_APP_PRIVATE_KEY }}
-          owner: ${{ github.repository_owner }}
-          repositories: infra
-
       - name: Checkout infra repo
         uses: actions/checkout@v4
         with:
           repository: cartsnitch/infra
-          token: ${{ steps.app-token.outputs.token }}
+          token: ${{ secrets.GITEA_TOKEN }}
           ref: main
           path: infra
 
@@ -250,12 +477,65 @@ jobs:
       - name: Install kustomize
         uses: imranismail/setup-kustomize@v2
 
-      - name: Update dev overlay image tags
+      - name: Determine image tag for frontend
+        id: frontend_tag
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update frontend image tag
+        if: needs.build-and-push.result == 'success'
         run: |
           cd infra/apps/overlays/dev
-          kustomize edit set image ghcr.io/cartsnitch/cartsnitch:${{ needs.build-and-push.outputs.calver_tag }}
-          kustomize edit set image ghcr.io/cartsnitch/auth:${{ needs.build-and-push-auth.outputs.calver_tag }}
-          kustomize edit set image ghcr.io/cartsnitch/receiptwitness:${{ needs.build-and-push-receiptwitness.outputs.calver_tag }}
+          kustomize edit set image ghcr.io/cartsnitch/cartsnitch:${{ steps.frontend_tag.outputs.tag }}
+
+      - name: Determine image tag for receiptwitness
+        id: receiptwitness_tag
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-receiptwitness.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-receiptwitness.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update receiptwitness image tag
+        if: needs.build-and-push-receiptwitness.result == 'success'
+        run: |
+          cd infra/apps/overlays/dev
+          kustomize edit set image ghcr.io/cartsnitch/receiptwitness:${{ steps.receiptwitness_tag.outputs.tag }}
+
+      - name: Determine image tag for api
+        id: api_tag
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-api.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-api.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update api image tag
+        if: needs.build-and-push-api.result == 'success'
+        run: |
+          cd infra/apps/overlays/dev
+          kustomize edit set image ghcr.io/cartsnitch/api:${{ steps.api_tag.outputs.tag }}
+
+      - name: Determine image tag for auth
+        id: auth_tag
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-auth.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-auth.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update auth image tag
+        if: needs.build-and-push-auth.result == 'success'
+        run: |
+          cd infra/apps/overlays/dev
+          kustomize edit set image ghcr.io/cartsnitch/auth:${{ steps.auth_tag.outputs.tag }}
 
       - name: Commit and push to infra
         run: |
@@ -263,5 +543,97 @@ jobs:
           git config user.name "cartsnitch-ci[bot]"
           git config user.email "cartsnitch-ci[bot]@users.noreply.github.com"
           git add apps/overlays/dev/kustomization.yaml
-          git commit -m "ci(dev): update cartsnitch, auth, and receiptwitness images"
+          git diff --cached --quiet && echo "No image changes to deploy" && exit 0
+          git commit -m "ci(dev): update cartsnitch, receiptwitness, api, and auth images"
+          git pull --rebase origin main
+          git push origin main
+
+  deploy-uat:
+    runs-on: ubuntu-latest
+    needs: [build-and-push, build-and-push-receiptwitness, build-and-push-api, build-and-push-auth]
+    if: always() && !cancelled() && github.event_name == 'push' && (github.ref == 'refs/heads/uat' || github.ref == 'refs/heads/main')
+    steps:
+      - name: Checkout infra repo
+        uses: actions/checkout@v4
+        with:
+          repository: cartsnitch/infra
+          token: ${{ secrets.GITEA_TOKEN }}
+          ref: main
+          path: infra
+
+      - name: Install kubectl
+        uses: azure/setup-kubectl@v4
+
+      - name: Install kustomize
+        uses: imranismail/setup-kustomize@v2
+
+      - name: Determine image tag for frontend
+        id: frontend_tag
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update frontend image tag
+        if: needs.build-and-push.result == 'success'
+        run: |
+          cd infra/apps/overlays/uat
+          kustomize edit set image ghcr.io/cartsnitch/cartsnitch:${{ steps.frontend_tag.outputs.tag }}
+
+      - name: Determine image tag for receiptwitness
+        id: receiptwitness_tag
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-receiptwitness.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-receiptwitness.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update receiptwitness image tag
+        if: needs.build-and-push-receiptwitness.result == 'success'
+        run: |
+          cd infra/apps/overlays/uat
+          kustomize edit set image ghcr.io/cartsnitch/receiptwitness:${{ steps.receiptwitness_tag.outputs.tag }}
+
+      - name: Determine image tag for api
+        id: api_tag
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-api.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-api.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update api image tag
+        if: needs.build-and-push-api.result == 'success'
+        run: |
+          cd infra/apps/overlays/uat
+          kustomize edit set image ghcr.io/cartsnitch/api:${{ steps.api_tag.outputs.tag }}
+
+      - name: Determine image tag for auth
+        id: auth_tag
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-auth.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-auth.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update auth image tag
+        if: needs.build-and-push-auth.result == 'success'
+        run: |
+          cd infra/apps/overlays/uat
+          kustomize edit set image ghcr.io/cartsnitch/auth:${{ steps.auth_tag.outputs.tag }}
+
+      - name: Commit and push to infra
+        run: |
+          cd infra
+          git config user.name "cartsnitch-ci[bot]"
+          git config user.email "cartsnitch-ci[bot]@users.noreply.github.com"
+          git add apps/overlays/uat/kustomization.yaml
+          git diff --cached --quiet && echo "No image changes to deploy" && exit 0
+          git commit -m "ci(uat): update cartsnitch, receiptwitness, api, and auth images"
+          git pull --rebase origin main
           git push origin main

.grype.yaml

@@ -0,0 +1,108 @@
+ignore:
+  # Python 3.12 CVEs — only fixed in 3.13+, cannot upgrade major version safely
+  - vulnerability: CVE-2025-13836
+  - vulnerability: CVE-2026-4519
+
+  # Chrome CVEs — Playwright bundles Chromium and controls version separately.
+  # Chrome is not a system package that can be upgraded via apt-get upgrade.
+  # These CVEs are specific to the Chromium version bundled with Playwright.
+  # Upstream fix: upgrade Playwright to a version that includes patched Chrome.
+  - vulnerability: CVE-2026-2313
+  - vulnerability: CVE-2026-2314
+  - vulnerability: CVE-2026-2315
+  - vulnerability: CVE-2026-2319
+  - vulnerability: CVE-2026-2321
+  - vulnerability: CVE-2026-2441
+  - vulnerability: CVE-2026-2648
+  - vulnerability: CVE-2026-2649
+  - vulnerability: CVE-2026-2650
+  - vulnerability: CVE-2026-3061
+  - vulnerability: CVE-2026-3062
+  - vulnerability: CVE-2026-3536
+  - vulnerability: CVE-2026-3537
+  - vulnerability: CVE-2026-3538
+  - vulnerability: CVE-2026-3539
+  - vulnerability: CVE-2026-3540
+  - vulnerability: CVE-2026-3541
+  - vulnerability: CVE-2026-3542
+  - vulnerability: CVE-2026-3543
+  - vulnerability: CVE-2026-3544
+  - vulnerability: CVE-2026-3545
+  - vulnerability: CVE-2026-3913
+  - vulnerability: CVE-2026-3914
+  - vulnerability: CVE-2026-3915
+  - vulnerability: CVE-2026-3916
+  - vulnerability: CVE-2026-3917
+  - vulnerability: CVE-2026-3918
+  - vulnerability: CVE-2026-3919
+  - vulnerability: CVE-2026-3920
+  - vulnerability: CVE-2026-3921
+  - vulnerability: CVE-2026-3922
+  - vulnerability: CVE-2026-3923
+  - vulnerability: CVE-2026-3924
+  - vulnerability: CVE-2026-3926
+  - vulnerability: CVE-2026-3931
+  - vulnerability: CVE-2026-3932
+  - vulnerability: CVE-2026-3936
+  - vulnerability: CVE-2026-5858
+  - vulnerability: CVE-2026-5859
+  - vulnerability: CVE-2026-5860
+  - vulnerability: CVE-2026-5861
+  - vulnerability: CVE-2026-5862
+  - vulnerability: CVE-2026-5863
+  - vulnerability: CVE-2026-5865
+  - vulnerability: CVE-2026-5866
+  - vulnerability: CVE-2026-5868
+  - vulnerability: CVE-2026-5870
+  - vulnerability: CVE-2026-5871
+  - vulnerability: CVE-2026-5872
+  - vulnerability: CVE-2026-5873
+  - vulnerability: CVE-2026-5874
+  - vulnerability: CVE-2026-5877
+  - vulnerability: CVE-2026-5879
+  - vulnerability: CVE-2026-5883
+  - vulnerability: CVE-2026-5884
+  - vulnerability: CVE-2026-5902
+  - vulnerability: CVE-2026-5904
+  - vulnerability: CVE-2026-5907
+  - vulnerability: CVE-2026-5908
+  - vulnerability: CVE-2026-5909
+  - vulnerability: CVE-2026-5910
+  - vulnerability: CVE-2026-5912
+  - vulnerability: CVE-2026-5913
+  - vulnerability: CVE-2026-5914
+  - vulnerability: CVE-2026-5915
+  - vulnerability: CVE-2026-6296
+  - vulnerability: CVE-2026-6297
+  - vulnerability: CVE-2026-6299
+  - vulnerability: CVE-2026-6300
+  - vulnerability: CVE-2026-6301
+  - vulnerability: CVE-2026-6302
+  - vulnerability: CVE-2026-6303
+  - vulnerability: CVE-2026-6304
+  - vulnerability: CVE-2026-6305
+  - vulnerability: CVE-2026-6306
+  - vulnerability: CVE-2026-6307
+  - vulnerability: CVE-2026-6308
+  - vulnerability: CVE-2026-6309
+  - vulnerability: CVE-2026-6310
+  - vulnerability: CVE-2026-6311
+  - vulnerability: CVE-2026-6314
+  - vulnerability: CVE-2026-6315
+  - vulnerability: CVE-2026-6316
+  - vulnerability: CVE-2026-6317
+  - vulnerability: CVE-2026-6318
+  - vulnerability: CVE-2026-6319
+  - vulnerability: CVE-2026-6358
+  - vulnerability: CVE-2026-6359
+  - vulnerability: CVE-2026-6360
+  - vulnerability: CVE-2026-6361
+  - vulnerability: CVE-2026-6363
+
+  # Node.js CVE — comes from Playwright's bundled tooling (playwright-core uses Node.js
+  # for its CLI). The system Node.js is not used by receiptwitness service.
+  # Fix requires upgrading Playwright to a version that ships with patched Node.js.
+  - vulnerability: CVE-2026-21710
+
+  # cryptography GHSA — fixed by upgrading to >=46.0 per requirements
+  - vulnerability: GHSA-r6ph-v2qm-q3c2

Dockerfile

@@ -1,6 +1,6 @@
 # Stage 1: Build
 FROM node:20-alpine AS build
-
+RUN apk update && apk upgrade --no-cache
 WORKDIR /app
 
 COPY package.json package-lock.json ./
@@ -11,6 +11,9 @@ RUN npm run build
 
 # Stage 2: Production — uses nginxinc/nginx-unprivileged which runs as non-root (UID 101)
 FROM nginxinc/nginx-unprivileged:stable-alpine AS prod
+USER root
+RUN apk update && apk upgrade --no-cache
+USER 101
 
 COPY --from=build /app/dist /usr/share/nginx/html
 COPY nginx.conf /etc/nginx/conf.d/default.conf

README.md

@@ -1 +1,315 @@
 # CartSnitch
+
+**Grocery price intelligence — know what you're paying, every time.**
+
+CartSnitch is a self-hosted grocery price intelligence platform that connects to your store loyalty accounts, tracks prices across retailers, monitors shrinkflation, and helps you find the best deals.
+
+---
+
+## Project Overview
+
+CartSnitch solves the problem of **grocery price opacity**. Most shoppers don't know if they're getting a good deal, whether prices have spiked since their last visit, or if the "sale" is actually a worse price than a competitor. CartSnitch makes prices transparent.
+
+**Core features:**
+- Connect Meijer, Kroger, Target loyalty accounts
+- View purchase history across all stores in one timeline
+- Track per-item price charts across stores over time
+- Receive shrinkflation and price increase alerts
+- Browse active coupons and deals
+- Generate optimized shopping lists with store-split plans
+- Public price transparency dashboards
+
+---
+
+## Architecture
+
+CartSnitch is a polyglot microservices platform. The monorepo contains the frontend PWA and core services.
+
+```
+┌─────────────────────────────────────────────────────────────────┐
+│                         CartSnitch PWA                          │
+│                    (React, mobile-first PWA)                     │
+└──────────┬────────────────────┬────────────────────┬───────────┘
+           │                    │                    │
+           ▼                    ▼                    ▼
+┌──────────────────┐  ┌─────────────────┐  ┌─────────────────────┐
+│   Auth Service   │  │   API Gateway   │  │  ReceiptWitness     │
+│  (Better-Auth)   │  │ (Python/FastAPI)│  │   (Python/Scrapers) │
+│  Session mgmt   │  │  REST + proxy   │  │  Purchase ingestion  │
+└────────┬─────────┘  └────────┬────────┘  └──────────┬──────────┘
+         │                      │                        │
+         └──────────────────────┼────────────────────────┘
+                                ▼
+                   ┌────────────────────────┐
+                   │   CloudNativePG (PGSQL) │
+                   │   Shared database      │
+                   └────────────────────────┘
+```
+
+### Services in This Repo
+
+| Directory | Service | Description |
+|-----------|---------|-------------|
+| `/` (root) | Frontend | React PWA, mobile-first |
+| `auth/` | Auth | Better-Auth service — session management, email/password, OAuth |
+| `api/` | API Gateway | Frontend-facing REST API, Python/FastAPI |
+| `common/` | Common | Shared Python models, Pydantic schemas, Alembic migrations |
+| `receiptwitness/` | ReceiptWitness | Purchase data ingestion via retailer scrapers |
+
+### Other CartSnitch Repos
+
+| Repo | Service |
+|------|---------|
+| `cartsnitch/stickershock` | Price increase detection & CPI comparison |
+| `cartsnitch/shrinkray` | Shrinkflation monitoring |
+| `cartsnitch/clipartist` | Coupon/deal watching |
+| `cartsnitch/infra` | Kubernetes manifests, Flux kustomizations |
+
+---
+
+## Tech Stack
+
+### Frontend
+- **React 18+** with TypeScript
+- **Vite** — build tool
+- **Tailwind CSS v4** — mobile-first responsive design
+- **Workbox** — service worker, offline caching, PWA manifest
+- **Recharts** — price trend visualizations
+- **TanStack Query** — data fetching and caching
+- **React Router v7** — client-side routing
+- **Zustand** — lightweight state management
+
+### Backend Services
+- **Better-Auth** — authentication (session management, email/password, OAuth)
+- **Node.js** (API Gateway)
+- **Python/FastAPI** (API Gateway, ReceiptWitness)
+- **PostgreSQL** via CloudNativePG
+- **DragonflyDB** for caching
+
+### Infrastructure
+- **Kubernetes** (k3s-compatible)
+- **Flux CD** — GitOps deployment
+- **GitHub Actions** — CI/CD
+- **CalVer** (`YYYY.MM.DD[.N]`) — image tagging
+- **Bitnami Sealed Secrets** — secret management
+- **Authentik** — OIDC/OAuth2 provider
+
+---
+
+## Getting Started
+
+### Prerequisites
+
+- Node.js 20+
+- npm or pnpm
+- PostgreSQL (local or containerized)
+- Docker (for running services locally)
+
+### Local Development
+
+1. **Clone the repo**
+   ```bash
+   git clone https://github.com/cartsnitch/cartsnitch.git
+   cd cartsnitch
+   ```
+
+2. **Install dependencies**
+   ```bash
+   npm install
+   ```
+
+3. **Set up environment variables**
+   ```bash
+   cp .env.example .env
+   # Edit .env with your local settings
+   ```
+
+4. **Start the frontend dev server**
+   ```bash
+   npm run dev
+   ```
+   The PWA will be available at `http://localhost:5173`.
+
+5. **Run tests**
+   ```bash
+   npm test
+   ```
+
+6. **Build for production**
+   ```bash
+   npm run build
+   ```
+
+### Running Backend Services Locally
+
+The frontend PWA communicates with three backend services. For full local development, you'll need to run each service:
+
+```bash
+# Auth service (Better-Auth)
+cd auth
+npm install
+npm run dev
+
+# API Gateway (separate repo: cartsnitch/api)
+# See api/README.md
+
+# ReceiptWitness (separate repo: cartsnitch/receiptwitness)
+# See receiptwitness/README.md
+```
+
+### Environment Variables
+
+| Variable | Description | Default |
+|----------|-------------|---------|
+| `VITE_API_URL` | API Gateway base URL | `http://localhost:3000` |
+| `VITE_AUTH_URL` | Auth service base URL | `http://localhost:3001` |
+
+---
+
+## Contributing
+
+We welcome contributions. Please follow the workflow below.
+
+### Branching Strategy
+
+- Branch from `dev`
+- Use prefix: `feature/`, `fix/`, `docs/`, `chore/`
+- Examples: `feature/shopping-list-optimization`, `fix/price-chart-zoom`
+
+### Commit Convention
+
+We use [Conventional Commits](https://www.conventionalcommits.org/):
+
+```
+feat: add shopping list export
+fix: correct price chart date formatting
+docs: update API documentation
+chore: update dependencies
+```
+
+### Pull Request Workflow
+
+1. Open a PR against `dev`
+2. CI must pass (lint, type check, tests, e2e)
+3. QA reviews and approves
+4. CTO merges to `dev`
+5. Dev deploys automatically
+6. CTO promotes `dev → uat`
+7. UAT and security review
+8. CEO merges `uat → main`
+9. Production deploys automatically
+
+**Never push directly to `main`, `dev`, or `uat`.**
+
+### Code Standards
+
+- ESLint for linting
+- TypeScript strict mode
+- Mobile-first responsive design
+- Accessibility (WCAG 2.1 AA)
+
+---
+
+## Testing
+
+### Unit Tests
+
+```bash
+npm test
+```
+
+### E2E Tests (Playwright)
+
+```bash
+npm run test:e2e
+```
+
+Tests run headless by default. For headed mode:
+
+```bash
+npm run test:e2e:headed
+```
+
+### Lighthouse CI
+
+Performance audits run automatically in CI. To run locally:
+
+```bash
+npm run build
+npm run preview
+# In another terminal:
+npx lighthouse http://localhost:4173 --output=html --output-path=./report/lighthouse.html
+```
+
+---
+
+## CI/CD Pipeline
+
+All branches (`main`, `dev`, `uat`) run through GitHub Actions on every push.
+
+### Pipeline Stages
+
+| Job | Trigger | Purpose |
+|-----|---------|---------|
+| `lint` | Every push | ESLint + TypeScript type check |
+| `test` | Every push | Unit tests via Vitest |
+| `audit` | Every push | Security vulnerability scan |
+| `e2e` | Every push | Playwright end-to-end tests |
+| `lighthouse` | After test | Performance budget check |
+| `build-and-push` | On push to main/dev/uat | Build and push Docker images to GHCR |
+| `deploy-dev` | On push to dev or main | Update `cartsnitch/infra` → auto-deploy to dev |
+| `deploy-uat` | On push to uat or main | Update `cartsnitch/infra` → auto-deploy to uat |
+
+### Image Tagging
+
+- **Production (`main`):** CalVer tag (`YYYY.MM.DD[.N]`) + `latest`
+- **Development (`dev`):** SHA tag (`sha-<short-sha>`)
+
+### Deployment Environments
+
+| Environment | Namespace | URL | Trigger |
+|-------------|-----------|-----|---------|
+| Dev | `cartsnitch-dev` | `cartsnitch.dev.farh.net` | Push to `dev` branch |
+| UAT | `cartsnitch-uat` | `cartsnitch.uat.farh.net` | Push to `uat` branch |
+| Production | `cartsnitch` | `cartsnitch.farh.net` | Push to `main` branch |
+
+---
+
+## Deployment
+
+### Infrastructure
+
+The infrastructure repository ([cartsnitch/infra](https://github.com/cartsnitch/infra)) contains Kubernetes manifests and Flux Kustomize overlays.
+
+### Flux GitOps Flow
+
+1. CI builds and pushes a new Docker image
+2. CI opens a PR to `cartsnitch/infra` updating the image tag
+3. On merge, Flux reconciles the manifests and rolls out the new image
+
+### Forcing a Rollout
+
+To force pods to pick up a new `:latest` image:
+
+```bash
+kubectl rollout restart deployment/<name> -n <namespace>
+```
+
+### Secrets
+
+Secrets are managed via **Bitnami Sealed Secrets**. No plain Kubernetes secrets are used.
+
+---
+
+## Related Projects
+
+- [StickerShock](https://github.com/cartsnitch/stickershock) — Price increase detection
+- [ShrinkRay](https://github.com/cartsnitch/shrinkray) — Shrinkflation monitoring
+- [ClipArtist](https://github.com/cartsnitch/clipartist) — Coupon/deal optimization
+- [Infra](https://github.com/cartsnitch/infra) — Kubernetes infrastructure
+
+---
+
+## License
+
+MIT &copy; 2025 CartSnitch

api/.github/workflows/ci.yml

@@ -0,0 +1,164 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+  packages: write
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: cartsnitch/api
+
+jobs:
+  lint:
+    runs-on: runners-cartsnitch
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+      - run: pip install ruff
+      - name: Ruff lint
+        run: ruff check .
+      - name: Ruff format check
+        run: ruff format --check .
+
+  typecheck:
+    runs-on: runners-cartsnitch
+    continue-on-error: true
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y libpq-dev build-essential
+      - name: Install cartsnitch-common from GitHub
+        run: pip install "cartsnitch-common @ git+https://github.com/cartsnitch/common.git"
+      - run: pip install -e ".[dev]" mypy
+      - name: Type check
+        run: mypy src/cartsnitch_api
+
+  test:
+    runs-on: runners-cartsnitch
+    services:
+      postgres:
+        image: postgres:15-alpine
+        credentials:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+        env:
+          POSTGRES_USER: cartsnitch
+          POSTGRES_PASSWORD: cartsnitch_test
+          POSTGRES_DB: cartsnitch_test
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+      redis:
+        image: redis:7-alpine
+        credentials:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+        ports:
+          - 6379:6379
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    env:
+      CARTSNITCH_DATABASE_URL: postgresql+asyncpg://cartsnitch:cartsnitch_test@localhost:5432/cartsnitch_test
+      CARTSNITCH_REDIS_URL: redis://localhost:6379/0
+      CARTSNITCH_JWT_SECRET_KEY: test-secret-do-not-use-in-prod
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y libpq-dev build-essential
+      - name: Install cartsnitch-common from GitHub
+        run: pip install "cartsnitch-common @ git+https://github.com/cartsnitch/common.git"
+      - run: pip install -e ".[dev]"
+      - name: Run tests
+        run: pytest --tb=short -q
+
+  build-and-push:
+    runs-on: runners-cartsnitch
+    needs: [lint, test]
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate CalVer tag
+        id: calver
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        run: |
+          DATE_TAG=$(date -u +%Y.%m.%d)
+          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
+          if [ -z "$EXISTING" ]; then
+            VERSION="$DATE_TAG"
+          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then
+            VERSION="${DATE_TAG}.2"
+          else
+            BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//")
+            VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"
+          fi
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+          echo "CalVer tag: $VERSION"
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Log in to GHCR
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=sha-
+            type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          target: prod
+
+      - name: Create git tag
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        run: |
+          git tag "v${{ steps.calver.outputs.version }}"
+          git push origin "v${{ steps.calver.outputs.version }}"

api/Dockerfile

@@ -1,6 +1,7 @@
 FROM python:3.12-slim AS build
 
-RUN apt-get update && apt-get install -y --no-install-recommends \
+ARG APT_CACHE_BUST=0
+RUN apt-get update && apt-get upgrade -y && apt-get install -y --no-install-recommends \
     libpq-dev \
     build-essential \
     && rm -rf /var/lib/apt/lists/*
@@ -12,6 +13,9 @@ RUN pip install --no-cache-dir --prefix=/install .
 
 FROM python:3.12-slim AS prod
 
+ARG APT_CACHE_BUST=0
+RUN apt-get update && apt-get upgrade -y && apt-get install -y --no-install-recommends libpq5 && rm -rf /var/lib/apt/lists/*
+
 WORKDIR /app
 RUN adduser --system --group --uid 1000 app
 COPY --from=build /install /usr/local
@@ -25,4 +29,4 @@ EXPOSE 8000
 HEALTHCHECK --interval=30s --timeout=3s \
     CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"
 
-CMD ["uvicorn", "cartsnitch_api.main:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["sh", "-c", "python -m alembic upgrade head && uvicorn cartsnitch_api.main:app --host 0.0.0.0 --port 8000"]

api/alembic/env.py

@@ -18,7 +18,7 @@ if not db_url:
         "CARTSNITCH_DATABASE_URL_SYNC must be set. "
         "Example: postgresql://user:pass@localhost:5432/cartsnitch"
     )
-config.set_main_option("sqlalchemy.url", db_url)
+config.set_main_option("sqlalchemy.url", db_url.replace("%", "%%"))
 
 target_metadata = Base.metadata
 
@@ -31,6 +31,7 @@ def run_migrations_offline() -> None:
         target_metadata=target_metadata,
         literal_binds=True,
         dialect_opts={"paramstyle": "named"},
+        version_table_column_width=128,
     )
     with context.begin_transaction():
         context.run_migrations()
@@ -44,9 +45,20 @@ def run_migrations_online() -> None:
         poolclass=pool.NullPool,
     )
     with connectable.connect() as connection:
-        context.configure(connection=connection, target_metadata=target_metadata)
+        context.configure(connection=connection, target_metadata=target_metadata, version_table_column_width=128)
         with context.begin_transaction():
             context.run_migrations()
+        # Create any tables defined in models but not yet created by migrations.
+        # This bootstraps fresh databases that have no legacy schema.
+        # checkfirst=True ensures this is a no-op on existing databases.
+        try:
+            Base.metadata.create_all(bind=connection, checkfirst=True)
+            connection.commit()
+        except Exception as exc:
+            import logging
+            logging.getLogger("alembic.env").warning(
+                "create_all failed (non-fatal, migrations should handle table creation): %s", exc
+            )
 
 
 if context.is_offline_mode():

api/alembic/versions/001_encrypt_session_data.py

@@ -33,6 +33,21 @@ def _is_fernet_token(value: str) -> bool:
 
 
 def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+
+    # Fresh DB — table created by Base.metadata.create_all with correct TEXT type
+    if not inspector.has_table("user_store_accounts"):
+        return
+
+    # Already migrated? Skip if session_data is already TEXT (not JSON)
+    cols = {c["name"]: c for c in inspector.get_columns("user_store_accounts")}
+    if "session_data" not in cols:
+        return
+    col_type = str(cols["session_data"]["type"]).lower()
+    if "text" in col_type and "json" not in col_type:
+        return  # already TEXT — nothing to do
+
     # Change column type from JSON to TEXT to hold Fernet ciphertext
     op.alter_column(
         "user_store_accounts",
@@ -43,7 +58,6 @@ def upgrade() -> None:
         postgresql_using="session_data::text",
     )
 
-    conn = op.get_bind()
     rows = conn.execute(
         text("SELECT id, session_data FROM user_store_accounts WHERE session_data IS NOT NULL")
     ).fetchall()

api/alembic/versions/002_better_auth_tables.py

@@ -21,81 +21,94 @@ depends_on = None
 
 
 def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+
     # --- Extend users table for Better-Auth compatibility ---
-    op.add_column("users", sa.Column("email_verified", sa.Boolean(), nullable=False, server_default="false"))
-    op.add_column("users", sa.Column("image", sa.Text(), nullable=True))
+    # Guard: on a fresh DB Base.metadata.create_all (called in env.py after migrations)
+    # creates the users table with all columns, so migration 002 must not re-run add_column.
+    if inspector.has_table("users"):
+        existing_user_cols = [c["name"] for c in inspector.get_columns("users")]
+        if "email_verified" not in existing_user_cols:
+            op.add_column("users", sa.Column("email_verified", sa.Boolean(), nullable=False, server_default="false"))
+        if "image" not in existing_user_cols:
+            op.add_column("users", sa.Column("image", sa.Text(), nullable=True))
 
     # --- Create sessions table ---
-    op.create_table(
-        "sessions",
-        sa.Column("id", sa.Text(), nullable=False),
-        sa.Column("token", sa.Text(), nullable=False),
-        sa.Column("user_id", sa.Text(), nullable=False),
-        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
-        sa.Column("ip_address", sa.Text(), nullable=True),
-        sa.Column("user_agent", sa.Text(), nullable=True),
-        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
-        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
-        sa.PrimaryKeyConstraint("id"),
-    )
-    op.create_index("ix_sessions_token", "sessions", ["token"], unique=True)
-    op.create_index("ix_sessions_user_id", "sessions", ["user_id"])
+    if not inspector.has_table("sessions"):
+        op.create_table(
+            "sessions",
+            sa.Column("id", sa.Text(), nullable=False),
+            sa.Column("token", sa.Text(), nullable=False),
+            sa.Column("user_id", sa.Text(), nullable=False),
+            sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
+            sa.Column("ip_address", sa.Text(), nullable=True),
+            sa.Column("user_agent", sa.Text(), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.PrimaryKeyConstraint("id"),
+        )
+        op.create_index("ix_sessions_token", "sessions", ["token"], unique=True)
+        op.create_index("ix_sessions_user_id", "sessions", ["user_id"])
 
     # --- Create accounts table ---
-    op.create_table(
-        "accounts",
-        sa.Column("id", sa.Text(), nullable=False),
-        sa.Column("user_id", sa.Text(), nullable=False),
-        sa.Column("account_id", sa.Text(), nullable=False),
-        sa.Column("provider_id", sa.Text(), nullable=False),
-        sa.Column("access_token", sa.Text(), nullable=True),
-        sa.Column("refresh_token", sa.Text(), nullable=True),
-        sa.Column("access_token_expires_at", sa.DateTime(timezone=True), nullable=True),
-        sa.Column("refresh_token_expires_at", sa.DateTime(timezone=True), nullable=True),
-        sa.Column("scope", sa.Text(), nullable=True),
-        sa.Column("id_token", sa.Text(), nullable=True),
-        sa.Column("password", sa.Text(), nullable=True),
-        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
-        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
-        sa.PrimaryKeyConstraint("id"),
-    )
-    op.create_index("ix_accounts_user_id", "accounts", ["user_id"])
+    if not inspector.has_table("accounts"):
+        op.create_table(
+            "accounts",
+            sa.Column("id", sa.Text(), nullable=False),
+            sa.Column("user_id", sa.Text(), nullable=False),
+            sa.Column("account_id", sa.Text(), nullable=False),
+            sa.Column("provider_id", sa.Text(), nullable=False),
+            sa.Column("access_token", sa.Text(), nullable=True),
+            sa.Column("refresh_token", sa.Text(), nullable=True),
+            sa.Column("access_token_expires_at", sa.DateTime(timezone=True), nullable=True),
+            sa.Column("refresh_token_expires_at", sa.DateTime(timezone=True), nullable=True),
+            sa.Column("scope", sa.Text(), nullable=True),
+            sa.Column("id_token", sa.Text(), nullable=True),
+            sa.Column("password", sa.Text(), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.PrimaryKeyConstraint("id"),
+        )
+        op.create_index("ix_accounts_user_id", "accounts", ["user_id"])
 
     # --- Create verifications table ---
-    op.create_table(
-        "verifications",
-        sa.Column("id", sa.Text(), nullable=False),
-        sa.Column("identifier", sa.Text(), nullable=False),
-        sa.Column("value", sa.Text(), nullable=False),
-        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
-        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
-        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
-        sa.PrimaryKeyConstraint("id"),
-    )
+    if not inspector.has_table("verifications"):
+        op.create_table(
+            "verifications",
+            sa.Column("id", sa.Text(), nullable=False),
+            sa.Column("identifier", sa.Text(), nullable=False),
+            sa.Column("value", sa.Text(), nullable=False),
+            sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.PrimaryKeyConstraint("id"),
+        )
 
     # --- Migrate existing password hashes to accounts table ---
-    # For each user with a hashed_password, create a 'credential' account row
-    conn = op.get_bind()
-    users = conn.execute(
-        text("SELECT id, hashed_password FROM users WHERE hashed_password IS NOT NULL")
-    ).fetchall()
+    # Only run on existing (non-fresh) DBs that already have users table with data
+    if inspector.has_table("users"):
+        users = conn.execute(
+            text("SELECT id, hashed_password FROM users WHERE hashed_password IS NOT NULL")
+        ).fetchall()
 
-    for user_id, hashed_password in users:
-        user_id_str = str(user_id)
-        conn.execute(
-            text(
-                "INSERT INTO accounts (id, user_id, account_id, provider_id, password, created_at, updated_at) "
-                "VALUES (gen_random_uuid()::text, :user_id, :account_id, 'credential', :password, now(), now())"
-            ),
-            {"user_id": user_id_str, "account_id": user_id_str, "password": hashed_password},
-        )
+        for user_id, hashed_password in users:
+            user_id_str = str(user_id)
+            conn.execute(
+                text(
+                    "INSERT INTO accounts (id, user_id, account_id, provider_id, password, created_at, updated_at) "
+                    "VALUES (gen_random_uuid()::text, :user_id, :account_id, 'credential', :password, now(), now())"
+                ),
+                {"user_id": user_id_str, "account_id": user_id_str, "password": hashed_password},
+            )
 
 
 def downgrade() -> None:
-    op.drop_table("verifications")
-    op.drop_table("accounts")
-    op.drop_index("ix_sessions_user_id", table_name="sessions")
-    op.drop_index("ix_sessions_token", table_name="sessions")
-    op.drop_table("sessions")
-    op.drop_column("users", "image")
-    op.drop_column("users", "email_verified")
+    op.execute(text("DROP INDEX IF EXISTS ix_accounts_user_id"))
+    op.execute(text("DROP TABLE IF EXISTS verifications"))
+    op.execute(text("DROP TABLE IF EXISTS accounts"))
+    op.execute(text("DROP INDEX IF EXISTS ix_sessions_user_id"))
+    op.execute(text("DROP INDEX IF EXISTS ix_sessions_token"))
+    op.execute(text("DROP TABLE IF EXISTS sessions"))
+    op.execute(text("ALTER TABLE users DROP COLUMN IF EXISTS image"))
+    op.execute(text("ALTER TABLE users DROP COLUMN IF EXISTS email_verified"))

api/alembic/versions/003_make_users_hashed_password_nullable.py

@@ -19,8 +19,25 @@ depends_on = None
 
 
 def upgrade() -> None:
-    op.alter_column("users", "hashed_password", existing_type=sa.String(255), nullable=True)
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+
+    # Fresh DB — nothing to alter
+    if not inspector.has_table("users"):
+        return
+
+    cols = {c["name"]: c for c in inspector.get_columns("users")}
+    if "hashed_password" in cols and not cols["hashed_password"]["nullable"]:
+        op.alter_column("users", "hashed_password", existing_type=sa.String(255), nullable=True)
 
 
 def downgrade() -> None:
-    op.alter_column("users", "hashed_password", existing_type=sa.String(255), nullable=False)
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+
+    if not inspector.has_table("users"):
+        return
+
+    cols = {c["name"]: c for c in inspector.get_columns("users")}
+    if "hashed_password" in cols and cols["hashed_password"]["nullable"]:
+        op.alter_column("users", "hashed_password", existing_type=sa.String(255), nullable=False)

api/alembic/versions/004_fix_user_id_text.py

@@ -0,0 +1,136 @@
+"""Fix users.id UUID->text type mismatch for Better-Auth compatibility.
+
+Better-Auth generates nanoid-style text IDs (e.g. pGud2ln2WAFHC0KYjBVKR4Rc7mM8OcTI),
+but the users table was using PostgreSQL uuid type. When Better-Auth tries to INSERT
+a new user, Postgres throws:
+  ERROR: invalid input syntax for type uuid: "pGud2ln2WAFHC0KYjBVKR4Rc7mM8OcTI"
+
+The sessions, accounts, and verifications tables already use text IDs — only users,
+user_store_accounts.user_id, and purchases.user_id needed fixing.
+
+Revision ID: 004_fix_user_id_text
+Revises: 003_make_users_hashed_password_nullable
+Create Date: 2026-03-31
+"""
+
+import sqlalchemy as sa
+from sqlalchemy import text
+
+from alembic import op
+
+revision = "004_fix_user_id_text"
+down_revision = "003_make_users_hashed_password_nullable"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+
+    # Fresh DB — no tables yet, nothing to convert
+    if not inspector.has_table("users"):
+        return
+
+    # Check if already TEXT (Base.metadata.create_all uses TEXT for fresh DB)
+    users_cols = {c["name"]: c for c in inspector.get_columns("users")}
+    if "id" in users_cols:
+        id_type = str(users_cols["id"]["type"]).lower()
+        if "text" in id_type and "uuid" not in id_type:
+            return  # already TEXT — nothing to do
+
+    # Step 1: Drop existing FK constraints (ignore if they don't exist)
+    op.execute(text("ALTER TABLE user_store_accounts DROP CONSTRAINT IF EXISTS user_store_accounts_user_id_fkey"))
+    op.execute(text("ALTER TABLE purchases DROP CONSTRAINT IF EXISTS purchases_user_id_fkey"))
+
+    # Step 2: Alter users.id from uuid to text
+    op.alter_column(
+        "users",
+        "id",
+        type_=sa.Text(),
+        existing_type=sa.UUID(),
+        postgresql_using="id::text",
+    )
+
+    # Step 3: Alter user_store_accounts.user_id from uuid to text
+    op.alter_column(
+        "user_store_accounts",
+        "user_id",
+        type_=sa.Text(),
+        existing_type=sa.UUID(),
+        postgresql_using="user_id::text",
+    )
+
+    # Step 4: Alter purchases.user_id from uuid to text
+    op.alter_column(
+        "purchases",
+        "user_id",
+        type_=sa.Text(),
+        existing_type=sa.UUID(),
+        postgresql_using="user_id::text",
+    )
+
+    # Step 5: Re-add FK constraints
+    op.execute(
+        text(
+            "ALTER TABLE user_store_accounts "
+            "ADD CONSTRAINT user_store_accounts_user_id_fkey "
+            "FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE"
+        )
+    )
+    op.execute(
+        text(
+            "ALTER TABLE purchases "
+            "ADD CONSTRAINT purchases_user_id_fkey "
+            "FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE"
+        )
+    )
+
+
+def downgrade() -> None:
+    # Drop FK constraints
+    op.execute(text("ALTER TABLE user_store_accounts DROP CONSTRAINT IF EXISTS user_store_accounts_user_id_fkey"))
+    op.execute(text("ALTER TABLE purchases DROP CONSTRAINT IF EXISTS purchases_user_id_fkey"))
+
+    # Revert users.id from text to uuid
+    op.alter_column(
+        "users",
+        "id",
+        type_=sa.UUID(),
+        existing_type=sa.Text(),
+        postgresql_using="id::uuid",
+    )
+
+    # Revert user_store_accounts.user_id from text to uuid
+    op.alter_column(
+        "user_store_accounts",
+        "user_id",
+        type_=sa.UUID(),
+        existing_type=sa.Text(),
+        postgresql_using="user_id::uuid",
+    )
+
+    # Revert purchases.user_id from text to uuid
+    op.alter_column(
+        "purchases",
+        "user_id",
+        type_=sa.UUID(),
+        existing_type=sa.Text(),
+        postgresql_using="user_id::uuid",
+    )
+
+    # Re-add FK constraints (PostgreSQL will auto-name them)
+    op.execute(
+        text(
+            "ALTER TABLE user_store_accounts "
+            "ADD CONSTRAINT user_store_accounts_user_id_fkey "
+            "FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE"
+        )
+    )
+    op.execute(
+        text(
+            "ALTER TABLE purchases "
+            "ADD CONSTRAINT purchases_user_id_fkey "
+            "FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE"
+        )
+    )

api/alembic/versions/005_add_email_inbound_token.py

@@ -0,0 +1,57 @@
+"""Add email_inbound_token to users.
+
+Revision ID: 005_add_email_inbound_token
+Revises: 004_fix_user_id_text
+Create Date: 2026-04-02
+"""
+
+import secrets
+
+import sqlalchemy as sa
+
+from alembic import op
+
+revision = "005_add_email_inbound_token"
+down_revision = "004_fix_user_id_text"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    # Guard: on a fresh DB Base.metadata.create_all creates users table with the column already present
+    if not inspector.has_table("users"):
+        return
+    existing_cols = [c["name"] for c in inspector.get_columns("users")]
+    if "email_inbound_token" in existing_cols:
+        return
+
+    # Add column nullable first so existing rows can be backfilled
+    op.add_column(
+        "users",
+        sa.Column("email_inbound_token", sa.String(22), nullable=True),
+    )
+
+    # Backfill existing users with unique tokens
+    result = conn.execute(sa.text("SELECT id FROM users WHERE email_inbound_token IS NULL"))
+    for (user_id,) in result:
+        token = secrets.token_urlsafe(16)
+        conn.execute(
+            sa.text("UPDATE users SET email_inbound_token = :token WHERE id = :id"),
+            {"token": token, "id": user_id},
+        )
+
+    # Now enforce non-null and unique
+    op.alter_column("users", "email_inbound_token", nullable=False)
+    op.create_index(
+        "ix_users_email_inbound_token",
+        "users",
+        ["email_inbound_token"],
+        unique=True,
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_users_email_inbound_token", table_name="users")
+    op.drop_column("users", "email_inbound_token")

api/alembic/versions/006_email_inbound_token_server_default.py

@@ -0,0 +1,42 @@
+"""Add server_default to users.email_inbound_token.
+
+Revision ID: 006_email_inbound_token_server_default
+Revises: 005_add_email_inbound_token
+Create Date: 2026-04-04
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "006_email_inbound_token_server_default"
+down_revision = "005_add_email_inbound_token"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    # Guard: on a fresh DB Base.metadata.create_all already sets the server_default
+    if not inspector.has_table("users"):
+        return
+    cols = {c["name"]: c for c in inspector.get_columns("users")}
+    if "email_inbound_token" not in cols:
+        return
+    if cols["email_inbound_token"].get("default") is not None:
+        return
+    op.alter_column(
+        "users",
+        "email_inbound_token",
+        server_default=sa.text(
+            "replace(replace(trim(trailing '=' from encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_')"
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.alter_column(
+        "users",
+        "email_inbound_token",
+        server_default=None,
+    )

api/alembic/versions/007_bootstrap_users_table.py

@@ -0,0 +1,47 @@
+"""Bootstrap users table on fresh databases.
+
+On fresh databases, migrations 001-006 skip users-table operations because
+the table does not exist yet. Base.metadata.create_all() in env.py is meant
+to handle this, but if it fails (import errors, etc.) the table is never
+created. This migration creates the users table with raw SQL as a safety net.
+
+Revision ID: 007_bootstrap_users_table
+Revises: 006_email_inbound_token_server_default
+Create Date: 2026-04-04
+"""
+
+import sqlalchemy as sa
+from sqlalchemy import text
+
+from alembic import op
+
+revision = "007_bootstrap_users_table"
+down_revision = "006_email_inbound_token_server_default"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    if inspector.has_table("users"):
+        return  # Table already exists (non-fresh DB or create_all already ran)
+
+    conn.execute(text("""
+        CREATE TABLE users (
+            id TEXT PRIMARY KEY,
+            email VARCHAR(255) NOT NULL UNIQUE,
+            hashed_password VARCHAR(255),
+            display_name VARCHAR(100),
+            email_verified BOOLEAN NOT NULL DEFAULT false,
+            image TEXT,
+            email_inbound_token VARCHAR(22) NOT NULL UNIQUE
+                DEFAULT replace(replace(trim(trailing '=' from encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_'),
+            created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
+        )
+    """))
+
+
+def downgrade() -> None:
+    op.execute(text("DROP TABLE IF EXISTS users"))

api/alembic/versions/008_create_domain_tables.py

@@ -0,0 +1,210 @@
+"""Create domain tables (stores, purchases, coupons, etc.).
+
+Revision ID: 008_create_domain_tables
+Revises: 007_bootstrap_users_table
+Create Date: 2026-04-04
+"""
+
+import sqlalchemy as sa
+from sqlalchemy import text
+
+from alembic import op
+
+revision = "008_create_domain_tables"
+down_revision = "007_bootstrap_users_table"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+
+    # 1. stores
+    if not inspector.has_table("stores"):
+        op.create_table(
+            "stores",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("name", sa.String(100), nullable=False),
+            sa.Column("slug", sa.String(20), nullable=False, unique=True),
+            sa.Column("logo_url", sa.String(500), nullable=True),
+            sa.Column("website_url", sa.String(500), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        )
+
+    # 2. store_locations
+    if not inspector.has_table("store_locations"):
+        op.create_table(
+            "store_locations",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("store_id", sa.Uuid(), sa.ForeignKey("stores.id"), nullable=False),
+            sa.Column("address", sa.String(300), nullable=False),
+            sa.Column("city", sa.String(100), nullable=False),
+            sa.Column("state", sa.String(2), nullable=False),
+            sa.Column("zip", sa.String(10), nullable=False),
+            sa.Column("lat", sa.Float(), nullable=True),
+            sa.Column("lng", sa.Float(), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        )
+
+    # 3. normalized_products
+    if not inspector.has_table("normalized_products"):
+        op.create_table(
+            "normalized_products",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("canonical_name", sa.String(300), nullable=False),
+            sa.Column("category", sa.String(50), nullable=True),
+            sa.Column("subcategory", sa.String(100), nullable=True),
+            sa.Column("brand", sa.String(200), nullable=True),
+            sa.Column("size", sa.String(50), nullable=True),
+            sa.Column("size_unit", sa.String(10), nullable=True),
+            sa.Column("upc_variants", sa.JSON(), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        )
+
+    # 4. purchases
+    if not inspector.has_table("purchases"):
+        op.create_table(
+            "purchases",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("user_id", sa.Text(), sa.ForeignKey("users.id"), nullable=False),
+            sa.Column("store_id", sa.Uuid(), sa.ForeignKey("stores.id"), nullable=False),
+            sa.Column("store_location_id", sa.Uuid(), sa.ForeignKey("store_locations.id"), nullable=True),
+            sa.Column("receipt_id", sa.String(200), nullable=False),
+            sa.Column("purchase_date", sa.Date(), nullable=False),
+            sa.Column("total", sa.Numeric(10, 2), nullable=False),
+            sa.Column("subtotal", sa.Numeric(10, 2), nullable=True),
+            sa.Column("tax", sa.Numeric(10, 2), nullable=True),
+            sa.Column("savings_total", sa.Numeric(10, 2), nullable=True),
+            sa.Column("source_url", sa.String(500), nullable=True),
+            sa.Column("raw_data", sa.JSON(), nullable=True),
+            sa.Column("ingested_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.UniqueConstraint("user_id", "store_id", "receipt_id", name="uq_purchase_receipt"),
+            sa.Index("ix_purchases_user_store", "user_id", "store_id"),
+        )
+
+    # 5. purchase_items
+    if not inspector.has_table("purchase_items"):
+        op.create_table(
+            "purchase_items",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("purchase_id", sa.Uuid(), sa.ForeignKey("purchases.id"), nullable=False),
+            sa.Column("product_name_raw", sa.String(300), nullable=False),
+            sa.Column("upc", sa.String(20), nullable=True),
+            sa.Column("quantity", sa.Numeric(10, 3), nullable=False),
+            sa.Column("unit_price", sa.Numeric(10, 2), nullable=False),
+            sa.Column("extended_price", sa.Numeric(10, 2), nullable=False),
+            sa.Column("regular_price", sa.Numeric(10, 2), nullable=True),
+            sa.Column("sale_price", sa.Numeric(10, 2), nullable=True),
+            sa.Column("coupon_discount", sa.Numeric(10, 2), nullable=True),
+            sa.Column("loyalty_discount", sa.Numeric(10, 2), nullable=True),
+            sa.Column("category_raw", sa.String(100), nullable=True),
+            sa.Column("normalized_product_id", sa.Uuid(), sa.ForeignKey("normalized_products.id"), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        )
+
+    # 6. coupons
+    if not inspector.has_table("coupons"):
+        op.create_table(
+            "coupons",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("store_id", sa.Uuid(), sa.ForeignKey("stores.id"), nullable=False),
+            sa.Column("normalized_product_id", sa.Uuid(), sa.ForeignKey("normalized_products.id"), nullable=True),
+            sa.Column("title", sa.String(300), nullable=False),
+            sa.Column("description", sa.String(1000), nullable=True),
+            sa.Column("discount_type", sa.String(20), nullable=False),
+            sa.Column("discount_value", sa.Numeric(10, 2), nullable=True),
+            sa.Column("min_purchase", sa.Numeric(10, 2), nullable=True),
+            sa.Column("valid_from", sa.Date(), nullable=True),
+            sa.Column("valid_to", sa.Date(), nullable=True),
+            sa.Column("requires_clip", sa.Boolean(), server_default=text("false"), nullable=False),
+            sa.Column("coupon_code", sa.String(100), nullable=True),
+            sa.Column("source_url", sa.String(500), nullable=True),
+            sa.Column("scraped_at", sa.DateTime(timezone=True), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        )
+
+    # 7. price_history
+    if not inspector.has_table("price_history"):
+        op.create_table(
+            "price_history",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("normalized_product_id", sa.Uuid(), sa.ForeignKey("normalized_products.id"), nullable=False),
+            sa.Column("store_id", sa.Uuid(), sa.ForeignKey("stores.id"), nullable=False),
+            sa.Column("observed_date", sa.Date(), nullable=False),
+            sa.Column("regular_price", sa.Numeric(10, 2), nullable=False),
+            sa.Column("sale_price", sa.Numeric(10, 2), nullable=True),
+            sa.Column("loyalty_price", sa.Numeric(10, 2), nullable=True),
+            sa.Column("coupon_price", sa.Numeric(10, 2), nullable=True),
+            sa.Column("source", sa.String(20), nullable=False),
+            sa.Column("purchase_item_id", sa.Uuid(), sa.ForeignKey("purchase_items.id"), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Index("ix_price_history_product_store_date", "normalized_product_id", "store_id", "observed_date"),
+        )
+
+    # 8. shrinkflation_events
+    if not inspector.has_table("shrinkflation_events"):
+        op.create_table(
+            "shrinkflation_events",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("normalized_product_id", sa.Uuid(), sa.ForeignKey("normalized_products.id"), nullable=False),
+            sa.Column("detected_date", sa.Date(), nullable=False),
+            sa.Column("old_size", sa.String(50), nullable=False),
+            sa.Column("new_size", sa.String(50), nullable=False),
+            sa.Column("old_unit", sa.String(10), nullable=True),
+            sa.Column("new_unit", sa.String(10), nullable=True),
+            sa.Column("price_at_old_size", sa.Numeric(10, 2), nullable=True),
+            sa.Column("price_at_new_size", sa.Numeric(10, 2), nullable=True),
+            sa.Column("confidence", sa.Numeric(3, 2), server_default=text("1.00"), nullable=False),
+            sa.Column("notes", sa.String(1000), nullable=True),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        )
+
+    # 9. user_store_accounts
+    if not inspector.has_table("user_store_accounts"):
+        op.create_table(
+            "user_store_accounts",
+            sa.Column("id", sa.Uuid(), server_default=text("gen_random_uuid()"), primary_key=True),
+            sa.Column("user_id", sa.Text(), sa.ForeignKey("users.id"), nullable=False),
+            sa.Column("store_id", sa.Uuid(), sa.ForeignKey("stores.id"), nullable=False),
+            sa.Column("session_data", sa.JSON(), nullable=True),
+            sa.Column("session_expires_at", sa.DateTime(timezone=True), nullable=True),
+            sa.Column("last_sync_at", sa.DateTime(timezone=True), nullable=True),
+            sa.Column("status", sa.String(20), server_default=text("'active'"), nullable=False),
+            sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+            sa.UniqueConstraint("user_id", "store_id", name="uq_user_store_account"),
+        )
+
+
+def downgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+
+    if inspector.has_table("user_store_accounts"):
+        op.drop_table("user_store_accounts")
+    if inspector.has_table("shrinkflation_events"):
+        op.drop_table("shrinkflation_events")
+    if inspector.has_table("price_history"):
+        op.drop_table("price_history")
+    if inspector.has_table("coupons"):
+        op.drop_table("coupons")
+    if inspector.has_table("purchase_items"):
+        op.drop_table("purchase_items")
+    if inspector.has_table("purchases"):
+        op.drop_table("purchases")
+    if inspector.has_table("normalized_products"):
+        op.drop_table("normalized_products")
+    if inspector.has_table("store_locations"):
+        op.drop_table("store_locations")
+    if inspector.has_table("stores"):
+        op.drop_table("stores")

api/alembic/versions/009_add_gin_index_upc_variants.py

@@ -0,0 +1,38 @@
+"""Add GIN index on upc_variants and alter column to JSONB.
+
+Revision ID: 009_add_gin_index_upc_variants
+Revises: 008_create_domain_tables
+Create Date: 2026-04-14
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "009_add_gin_index_upc_variants"
+down_revision = "008_create_domain_tables"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.alter_column(
+        "normalized_products",
+        "upc_variants",
+        type_=sa.dialects.postgresql.JSONB(),
+        postgresql_using="upc_variants::jsonb",
+    )
+    op.create_index(
+        "ix_normalized_products_upc_variants_gin",
+        "normalized_products",
+        ["upc_variants"],
+        postgresql_using="gin",
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_normalized_products_upc_variants_gin", table_name="normalized_products")
+    op.alter_column(
+        "normalized_products",
+        "upc_variants",
+        type_=sa.JSON(),
+    )

api/src/cartsnitch_api/auth/dependencies.py

@@ -5,8 +5,6 @@ Sessions are verified by querying the shared sessions table directly.
 """
 
 from datetime import UTC, datetime
-from uuid import UUID
-
 from fastapi import Cookie, Depends, Header, HTTPException, Request, status
 from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
 from sqlalchemy import text
@@ -21,12 +19,15 @@ bearer_scheme = HTTPBearer(auto_error=False)
 
 # Better-Auth session cookie name
 SESSION_COOKIE_NAME = "better-auth.session_token"
+# Secure prefix used by better-auth on HTTPS deployments
+SECURE_SESSION_COOKIE_NAME = "__Secure-better-auth.session_token"
 
 
-async def _validate_session_token(token: str, db: AsyncSession) -> UUID:
+async def _validate_session_token(token: str, db: AsyncSession) -> str:
     """Validate a Better-Auth session token against the sessions table.
 
-    Returns the user_id (as UUID) if the session is valid and not expired.
+    Better-Auth stores the raw token in the DB. The cookie/Bearer header
+    carries the same raw token, so we compare directly.
     """
     result = await db.execute(
         text("SELECT user_id, expires_at FROM sessions WHERE token = :token"),
@@ -51,14 +52,14 @@ async def _validate_session_token(token: str, db: AsyncSession) -> UUID:
             detail="Session expired",
         )
 
-    return UUID(str(user_id))
+    return str(user_id)
 
 
 async def get_current_user(
     request: Request,
     credentials: HTTPAuthorizationCredentials | None = Depends(bearer_scheme),
     db: AsyncSession = Depends(get_db),
-) -> UUID:
+) -> str:
     """Extract and validate the session token from cookie or Authorization header.
 
     Checks in order:
@@ -67,14 +68,19 @@ async def get_current_user(
     """
     token: str | None = None
 
-    # 1. Check session cookie
-    cookie_token = request.cookies.get(SESSION_COOKIE_NAME)
+    # 1. Check session cookie — prefer __Secure- variant (HTTPS) over plain (HTTP dev)
+    cookie_token = request.cookies.get(SECURE_SESSION_COOKIE_NAME) or request.cookies.get(
+        SESSION_COOKIE_NAME
+    )
     if cookie_token:
-        token = cookie_token
+        # Better-Auth cookie format is "token.sessionId" — extract just the token part
+        token = cookie_token.split(".")[0] if "." in cookie_token else cookie_token
 
     # 2. Fall back to Bearer header
     if not token and credentials:
-        token = credentials.credentials
+        # Callers might pass the compound value here too
+        raw = credentials.credentials
+        token = raw.split(".")[0] if "." in raw else raw
 
     if not token:
         raise HTTPException(
@@ -82,7 +88,9 @@ async def get_current_user(
             detail="Authentication required",
         )
 
-    return await _validate_session_token(token, db)
+    user_id = await _validate_session_token(token, db)
+    request.state.user_id = user_id
+    return user_id
 
 
 async def verify_service_key(x_service_key: str = Header()) -> None:

api/src/cartsnitch_api/auth/routes.py

@@ -5,13 +5,14 @@ the Better-Auth service (auth/). This router provides user profile
 endpoints that query our own user data from the shared database.
 """
 
-from uuid import UUID
-
 from fastapi import APIRouter, Depends, HTTPException, status
+from pydantic import BaseModel
+from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from cartsnitch_api.auth.dependencies import get_current_user
 from cartsnitch_api.database import get_db
+from cartsnitch_api.models import User
 from cartsnitch_api.schemas import (
     UpdateUserRequest,
     UserResponse,
@@ -23,7 +24,7 @@ router = APIRouter(prefix="/auth", tags=["auth"])
 
 @router.get("/me", response_model=UserResponse)
 async def get_me(
-    user_id: UUID = Depends(get_current_user),
+    user_id: str = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
     svc = AuthService(db)
@@ -38,7 +39,7 @@ async def get_me(
 @router.patch("/me", response_model=UserResponse)
 async def update_me(
     body: UpdateUserRequest,
-    user_id: UUID = Depends(get_current_user),
+    user_id: str = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
     svc = AuthService(db)
@@ -54,7 +55,7 @@ async def update_me(
 
 @router.delete("/me", status_code=status.HTTP_204_NO_CONTENT)
 async def delete_me(
-    user_id: UUID = Depends(get_current_user),
+    user_id: str = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
     svc = AuthService(db)

api/src/cartsnitch_api/cache.py

@@ -1,26 +1,108 @@
 """Redis/DragonflyDB caching helpers."""
 
+import logging
+from typing import TYPE_CHECKING
+
+import redis.asyncio as redis
+from redis.asyncio import Redis
+
 from cartsnitch_api.config import settings
 
+if TYPE_CHECKING:
+    from cartsnitch_api.config import Settings
+
+logger = logging.getLogger(__name__)
+
+_redis: "Redis | None" = None
+
+
+def get_settings() -> "Settings":
+    return settings
+
+
+async def init_redis() -> None:
+    global _redis
+    _redis = redis.from_url(settings.redis_url)
+    await _redis.ping()
+
+
+async def close_redis() -> None:
+    global _redis
+    if _redis is not None:
+        await _redis.aclose()
+        _redis = None
+
+
+def get_redis() -> Redis | None:
+    return _redis
+
 
 class CacheClient:
-    """Stub for Redis/DragonflyDB caching.
+    """Redis/DragonflyDB caching with connection pooling.
 
     Will be used for expensive queries: price trends, product comparisons.
     Cache invalidation via Redis pub/sub events from other services.
     """
 
     def __init__(self) -> None:
-        self.url = settings.redis_url
+        self._pool: redis.ConnectionPool | None = None
+        self._client: redis.Redis | None = None
+
+    async def initialize(self) -> None:
+        """Initialize the Redis connection pool."""
+        self._pool = redis.ConnectionPool.from_url(
+            settings.redis_url,
+            max_connections=20,
+            decode_responses=True,
+        )
+        self._client = redis.Redis(connection_pool=self._pool)
+
+    async def close(self) -> None:
+        """Close the Redis connection pool."""
+        if self._client:
+            await self._client.aclose()
+        if self._pool:
+            await self._pool.aclose()
 
     async def get(self, key: str) -> str | None:
-        # TODO: implement with redis-py async
-        return None
+        if not self._client:
+            return None
+        return await self._client.get(key)
 
     async def set(self, key: str, value: str, ttl_seconds: int = 300) -> None:
-        # TODO: implement with redis-py async
-        pass
+        if not self._client:
+            return
+        await self._client.set(key, value, ex=ttl_seconds)
 
     async def delete(self, key: str) -> None:
-        # TODO: implement with redis-py async
-        pass
+        if not self._client:
+            return
+        await self._client.delete(key)
+
+    async def invalidate_price_cache(self, product_id: str) -> None:
+        """Invalidate all price-related cache entries for a product."""
+        if not self._client:
+            return
+        pattern = f"price:*:{product_id}"
+        await self._delete_pattern(pattern)
+
+    async def invalidate_product_cache(self, product_id: str) -> None:
+        """Invalidate the product detail cache entry."""
+        if not self._client:
+            return
+        await self._client.delete(f"product:{product_id}")
+
+    async def _delete_pattern(self, pattern: str) -> None:
+        """Delete all keys matching a pattern using SCAN."""
+        if not self._client:
+            return
+        cursor = 0
+        while True:
+            cursor, keys = await self._client.scan(cursor=cursor, match=pattern, count=100)
+            if keys:
+                await self._client.delete(*keys)
+            if cursor == 0:
+                break
+
+
+cache_client = CacheClient()

api/src/cartsnitch_api/config.py

@@ -1,23 +1,25 @@
 import base64
 
-from pydantic import model_validator
+from pydantic import AliasChoices, Field, model_validator
 from pydantic_settings import BaseSettings
 
 
 class Settings(BaseSettings):
     model_config = {"env_prefix": "CARTSNITCH_"}
 
-    database_url: str = "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"
+    database_url: str = Field(
+        default="postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch",
+        validation_alias=AliasChoices("CARTSNITCH_DATABASE_URL", "DATABASE_URL"),
+    )
     redis_url: str = "redis://localhost:6379/0"
 
-    jwt_secret_key: str = "change-me-in-production"
+    jwt_secret_key: str
     jwt_algorithm: str = "HS256"
     jwt_access_token_expire_minutes: int = 15
     jwt_refresh_token_expire_days: int = 7
 
-    service_key: str = "change-me-in-production"
-    # Valid Fernet key for local dev — MUST be overridden in production
-    fernet_key: str = "7reF42nmTwbdN21PBoubGp7h_FU8qSimstmlaMLoRK8="
+    service_key: str
+    fernet_key: str
 
     auth_service_url: str = "http://auth:3001"
 
@@ -30,11 +32,31 @@ class Settings(BaseSettings):
 
     rate_limit_requests: int = 60
     rate_limit_window_seconds: int = 60
+    rate_limit_auth_requests: int = 5
+    rate_limit_auth_window_seconds: int = 60
+    rate_limit_redis_enabled: bool = True
     rate_limit_enabled: bool = True
 
+    _PLACEHOLDER_VALUES = {"change-me-in-production"}
+
     @model_validator(mode="after")
-    def validate_fernet_key(self):
-        """Validate fernet_key is a valid 32-byte url-safe base64 key at startup."""
+    def validate_secrets(self):
+        if not self.jwt_secret_key or self.jwt_secret_key in self._PLACEHOLDER_VALUES:
+            raise ValueError(
+                "CARTSNITCH_JWT_SECRET_KEY must be set to a secure value. "
+                'Generate one with: python -c "import secrets; print(secrets.token_urlsafe(32))"'
+            )
+        if not self.service_key or self.service_key in self._PLACEHOLDER_VALUES:
+            raise ValueError(
+                "CARTSNITCH_SERVICE_KEY must be set to a secure value. "
+                'Generate one with: python -c "import secrets; print(secrets.token_urlsafe(32))"'
+            )
+        if not self.fernet_key or self.fernet_key in self._PLACEHOLDER_VALUES:
+            raise ValueError(
+                "CARTSNITCH_FERNET_KEY must be set to a valid Fernet key. "
+                "Generate one with: python -c "
+                "'from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())'"
+            )
         try:
             decoded = base64.urlsafe_b64decode(self.fernet_key.encode())
             if len(decoded) != 32:
@@ -49,5 +71,14 @@ class Settings(BaseSettings):
             ) from None
         return self
 
+    @model_validator(mode="after")
+    def normalize_database_url(self):
+        """Normalize postgresql:// → postgresql+asyncpg:// for the asyncpg driver."""
+        if self.database_url.startswith("postgresql://"):
+            self.database_url = self.database_url.replace(
+                "postgresql://", "postgresql+asyncpg://", 1
+            )
+        return self
+
 
 settings = Settings()

api/src/cartsnitch_api/database.py

@@ -1,16 +1,60 @@
 """Database session management for the API gateway."""
 
 from collections.abc import AsyncGenerator
+from typing import TYPE_CHECKING
 
 from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
 
 from cartsnitch_api.config import settings
 
-engine = create_async_engine(settings.database_url, echo=False)
-async_session_factory = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
+if TYPE_CHECKING:
+    from sqlalchemy.engine import Engine
+
+
+_engine: "Engine | None" = None
+async_session_factory: async_sessionmaker[AsyncSession] | None = None
+
+
+def create_db_engine():
+    return create_async_engine(
+        settings.database_url,
+        pool_size=10,
+        max_overflow=20,
+        pool_pre_ping=True,
+        pool_recycle=3600,
+        echo=False,
+    )
+
+
+async def init_db() -> None:
+    global _engine, async_session_factory
+    _engine = create_db_engine()
+    async_session_factory = async_sessionmaker(_engine, class_=AsyncSession, expire_on_commit=False)
+
+
+async def close_db() -> None:
+    global _engine, async_session_factory
+    if _engine is not None:
+        await _engine.dispose()
+        _engine = None
+    async_session_factory = None
+
+
+def get_engine():
+    return _engine
 
 
 async def get_db() -> AsyncGenerator[AsyncSession, None]:
-    """FastAPI dependency that yields an async DB session."""
+    if async_session_factory is None:
+        raise RuntimeError("Database not initialized. Call init_db() first.")
     async with async_session_factory() as session:
         yield session
+
+
+# Backward compatibility: module-level engine proxy that delegates to _engine
+def __getattr__(name: str):
+    if name == "engine":
+        if _engine is None:
+            raise RuntimeError("Database not initialized. Call init_db() first.")
+        return _engine
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")

api/src/cartsnitch_api/main.py

@@ -2,12 +2,15 @@
 
 from contextlib import asynccontextmanager
 
-from fastapi import FastAPI
+from fastapi import APIRouter, FastAPI
 
 from cartsnitch_api.auth.routes import router as auth_router
+from cartsnitch_api.cache import cache_client
+from cartsnitch_api.database import dispose_engine
 from cartsnitch_api.middleware.cors import add_cors_middleware
 from cartsnitch_api.middleware.error_handler import add_error_handlers, add_error_monitor_middleware
 from cartsnitch_api.middleware.rate_limit import add_rate_limit_middleware
+from cartsnitch_api.middleware.audit import add_audit_middleware
 from cartsnitch_api.routes.alerts import router as alerts_router
 from cartsnitch_api.routes.coupons import router as coupons_router
 from cartsnitch_api.routes.health import router as health_router
@@ -18,13 +21,19 @@ from cartsnitch_api.routes.purchases import router as purchases_router
 from cartsnitch_api.routes.scraping import router as scraping_router
 from cartsnitch_api.routes.shopping import router as shopping_router
 from cartsnitch_api.routes.stores import router as stores_router
+from cartsnitch_api.routes.user import router as user_router
 
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
-    # TODO: initialize DB session pool, Redis connection, service clients
+    from cartsnitch_api.database import init_db, close_db
+    from cartsnitch_api.cache import init_redis, close_redis
+
+    await init_db()
+    await init_redis()
     yield
-    # TODO: cleanup connections
+    await close_redis()
+    await close_db()
 
 
 def create_app() -> FastAPI:
@@ -39,6 +48,7 @@ def create_app() -> FastAPI:
     add_cors_middleware(app)
     add_error_monitor_middleware(app)
     add_rate_limit_middleware(app)
+    add_audit_middleware(app)
 
     # Exception handlers
     add_error_handlers(app)
@@ -46,15 +56,20 @@ def create_app() -> FastAPI:
     # Routers
     app.include_router(health_router)
     app.include_router(auth_router)
-    app.include_router(stores_router)
-    app.include_router(purchases_router)
-    app.include_router(products_router)
-    app.include_router(prices_router)
-    app.include_router(coupons_router)
-    app.include_router(shopping_router)
-    app.include_router(alerts_router)
-    app.include_router(scraping_router)
-    app.include_router(public_router)
+
+    # Data endpoints mounted under /api/v1
+    v1_router = APIRouter(prefix="/api/v1")
+    v1_router.include_router(user_router)
+    v1_router.include_router(stores_router)
+    v1_router.include_router(purchases_router)
+    v1_router.include_router(products_router)
+    v1_router.include_router(prices_router)
+    v1_router.include_router(coupons_router)
+    v1_router.include_router(shopping_router)
+    v1_router.include_router(alerts_router)
+    v1_router.include_router(scraping_router)
+    v1_router.include_router(public_router)
+    app.include_router(v1_router)
 
     return app
 

api/src/cartsnitch_api/middleware/audit.py

@@ -0,0 +1,64 @@
+"""Audit logging middleware for sensitive API operations.
+
+Logs structured JSON for POST/PUT/PATCH/DELETE requests and GET /auth/me.
+Never logs request bodies, response bodies, Authorization headers, or cookie values.
+"""
+
+import json
+import logging
+import time
+from collections.abc import Awaitable, Callable
+
+from fastapi import FastAPI, Request
+from starlette.middleware.base import BaseHTTPMiddleware
+
+logger = logging.getLogger("cartsnitch_api.audit")
+
+HEALTH_PATHS = {"/health", "/healthz", "/ready"}
+
+
+class AuditMiddleware(BaseHTTPMiddleware):
+    """Middleware to log structured audit events for sensitive operations."""
+
+    async def dispatch(
+        self,
+        request: Request,
+        call_next: Callable[[Request], Awaitable],
+    ):
+        if request.method == "OPTIONS" or request.url.path in HEALTH_PATHS:
+            return await call_next(request)
+
+        method = request.method
+        path = request.url.path
+
+        is_sensitive_write = method in {"POST", "PUT", "PATCH", "DELETE"}
+        is_auth_me_read = method == "GET" and path == "/auth/me"
+
+        if not (is_sensitive_write or is_auth_me_read):
+            return await call_next(request)
+
+        start = time.perf_counter()
+        response = await call_next(request)
+        duration_ms = (time.perf_counter() - start) * 1000
+
+        user_id = getattr(request.state, "user_id", None)
+        client_ip = request.client.host if request.client else "unknown"
+
+        log_entry = {
+            "event": "audit",
+            "timestamp": time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime()),
+            "user_id": user_id,
+            "method": method,
+            "path": path,
+            "client_ip": client_ip,
+            "status_code": response.status_code,
+            "duration_ms": round(duration_ms, 2),
+        }
+
+        logger.info(json.dumps(log_entry))
+
+        return response
+
+
+def add_audit_middleware(app: FastAPI) -> None:
+    app.add_middleware(AuditMiddleware)

api/src/cartsnitch_api/middleware/cors.py

@@ -11,6 +11,6 @@ def add_cors_middleware(app: FastAPI) -> None:
         CORSMiddleware,
         allow_origins=settings.cors_origins,
         allow_credentials=True,
-        allow_methods=["*"],
-        allow_headers=["*"],
+        allow_methods=["GET", "POST", "PUT", "DELETE", "PATCH", "OPTIONS"],
+        allow_headers=["Content-Type", "Authorization", "Accept", "Origin", "X-Requested-With"],
     )

api/src/cartsnitch_api/middleware/rate_limit.py

@@ -4,18 +4,32 @@ Uses in-memory sliding window as fallback, Redis/DragonflyDB when available.
 Per-IP limiting on public endpoints, per-token limiting on authenticated endpoints.
 """
 
+import hashlib
+import logging
 import time
+import uuid
 from collections import defaultdict
 from threading import Lock
+from typing import Protocol
 
 from fastapi import FastAPI, Request, status
 from fastapi.responses import JSONResponse
+from redis.asyncio import Redis, RedisError
 from starlette.middleware.base import BaseHTTPMiddleware
 
 from cartsnitch_api.config import settings
 
+logger = logging.getLogger(__name__)
 
-class _SlidingWindowCounter:
+
+class RateLimitBackend(Protocol):
+    """Protocol for rate limit backends."""
+
+    async def is_allowed(self, key: str) -> tuple[bool, int, int]:
+        """Check if request is allowed. Returns (allowed, remaining, retry_after)."""
+
+
+class InMemorySlidingWindow:
     """Thread-safe in-memory sliding window rate limiter."""
 
     def __init__(self, max_requests: int, window_seconds: int) -> None:
@@ -24,13 +38,12 @@ class _SlidingWindowCounter:
         self._hits: dict[str, list[float]] = defaultdict(list)
         self._lock = Lock()
 
-    def is_allowed(self, key: str) -> tuple[bool, int, int]:
+    async def is_allowed(self, key: str) -> tuple[bool, int, int]:
         """Check if request is allowed. Returns (allowed, remaining, retry_after)."""
         now = time.monotonic()
         cutoff = now - self.window_seconds
 
         with self._lock:
-            # Prune expired entries
             self._hits[key] = [t for t in self._hits[key] if t > cutoff]
 
             current_count = len(self._hits[key])
@@ -43,15 +56,84 @@ class _SlidingWindowCounter:
             return True, remaining, 0
 
 
-# Module-level counters — one for public (per-IP), one for auth (per-token)
-_public_limiter = _SlidingWindowCounter(
-    max_requests=settings.rate_limit_requests,
-    window_seconds=settings.rate_limit_window_seconds,
-)
-_auth_limiter = _SlidingWindowCounter(
-    max_requests=settings.rate_limit_requests * 5,  # 300/min for authenticated users
-    window_seconds=settings.rate_limit_window_seconds,
-)
+class RedisSlidingWindow:
+    """Redis-backed sliding window rate limiter using sorted sets."""
+
+    def __init__(self, redis: Redis, max_requests: int, window_seconds: int) -> None:
+        self.redis = redis
+        self.max_requests = max_requests
+        self.window_seconds = window_seconds
+
+    async def is_allowed(self, key: str) -> tuple[bool, int, int]:
+        """Check if request is allowed. Returns (allowed, remaining, retry_after)."""
+        try:
+            now = time.monotonic()
+            cutoff = now - self.window_seconds
+            now_ms = int(now * 1000)
+            cutoff_ms = int(cutoff * 1000)
+
+            pipe = self.redis.pipeline()
+            pipe.zremrangebyscore(key, 0, cutoff_ms)
+            pipe.zcard(key)
+            results = await pipe.execute()
+
+            current_count = results[1]
+
+            if current_count >= self.max_requests:
+                oldest = await self.redis.zrange(key, 0, 0, withscores=True)
+                if oldest:
+                    retry_after = int((oldest[0][1] - cutoff) / 1000) + 1
+                else:
+                    retry_after = self.window_seconds
+                return False, 0, retry_after
+
+            member = f"{now_ms}:{uuid.uuid4().hex[:8]}"
+            pipe = self.redis.pipeline()
+            pipe.zadd(key, {member: now_ms})
+            pipe.expire(key, self.window_seconds)
+            await pipe.execute()
+
+            remaining = self.max_requests - current_count - 1
+            return True, remaining, 0
+
+        except RedisError as e:
+            logger.warning("Redis rate limit error, falling back to in-memory: %s", e)
+            in_memory = InMemorySlidingWindow(self.max_requests, self.window_seconds)
+            return await in_memory.is_allowed(key)
+
+
+_redis_client: Redis | None = None
+_use_redis = False
+
+if settings.rate_limit_redis_enabled:
+    try:
+        _redis_client = Redis.from_url(settings.redis_url)
+        _use_redis = True
+        logger.info("Rate limiting will use Redis at %s", settings.redis_url)
+    except Exception as e:
+        logger.warning("Failed to connect to Redis for rate limiting, using in-memory: %s", e)
+        _use_redis = False
+
+if _use_redis and _redis_client:
+    _public_limiter = RedisSlidingWindow(
+        _redis_client, settings.rate_limit_requests, settings.rate_limit_window_seconds
+    )
+    _auth_limiter = RedisSlidingWindow(
+        _redis_client, settings.rate_limit_requests * 5, settings.rate_limit_window_seconds
+    )
+    _auth_strict_limiter = RedisSlidingWindow(
+        _redis_client, settings.rate_limit_auth_requests, settings.rate_limit_auth_window_seconds
+    )
+else:
+    _public_limiter = InMemorySlidingWindow(
+        settings.rate_limit_requests, settings.rate_limit_window_seconds
+    )
+    _auth_limiter = InMemorySlidingWindow(
+        settings.rate_limit_requests * 5, settings.rate_limit_window_seconds
+    )
+    _auth_strict_limiter = InMemorySlidingWindow(
+        settings.rate_limit_auth_requests, settings.rate_limit_auth_window_seconds
+    )
 
 
 def _get_client_ip(request: Request) -> str:
@@ -62,30 +144,30 @@ def _get_client_ip(request: Request) -> str:
     return request.client.host if request.client else "unknown"
 
 
-def _get_rate_limit_key(request: Request) -> tuple[str, _SlidingWindowCounter]:
+def _get_rate_limit_key(request: Request) -> tuple[str, RateLimitBackend]:
     """Determine rate limit key and which limiter to use."""
     if request.url.path.startswith("/public"):
         return f"ip:{_get_client_ip(request)}", _public_limiter
 
-    # For authenticated endpoints, use Bearer token as key if present
+    if request.url.path.startswith("/auth/") and request.method == "POST":
+        return f"ip:{_get_client_ip(request)}", _auth_strict_limiter
+
     auth_header = request.headers.get("authorization", "")
     if auth_header.startswith("Bearer "):
         token = auth_header[7:]
-        # Use last 16 chars of token as key to avoid storing full tokens
-        return f"token:{token[-16:]}", _auth_limiter
+        token_hash = hashlib.sha256(token.encode()).hexdigest()
+        return f"token:{token_hash}", _auth_limiter
 
-    # Fallback to IP for unauthenticated non-public endpoints
     return f"ip:{_get_client_ip(request)}", _public_limiter
 
 
 class RateLimitMiddleware(BaseHTTPMiddleware):
     async def dispatch(self, request: Request, call_next):
-        # Skip rate limiting when disabled (e.g. in tests) or for health checks
         if not settings.rate_limit_enabled or request.url.path == "/health":
             return await call_next(request)
 
         key, limiter = _get_rate_limit_key(request)
-        allowed, remaining, retry_after = limiter.is_allowed(key)
+        allowed, remaining, retry_after = await limiter.is_allowed(key)
 
         if not allowed:
             return JSONResponse(

api/src/cartsnitch_api/models/purchase.py

@@ -32,8 +32,8 @@ class Purchase(UUIDPrimaryKeyMixin, TimestampMixin, Base):
 
     __tablename__ = "purchases"
 
-    user_id: Mapped[uuid.UUID] = mapped_column(ForeignKey("users.id"), nullable=False)
-    store_id: Mapped[uuid.UUID] = mapped_column(ForeignKey("stores.id"), nullable=False)
+    user_id: Mapped[str] = mapped_column(ForeignKey("users.id"), nullable=False)
+    store_id: Mapped[str] = mapped_column(ForeignKey("stores.id"), nullable=False)
     store_location_id: Mapped[uuid.UUID | None] = mapped_column(ForeignKey("store_locations.id"))
     receipt_id: Mapped[str] = mapped_column(String(200), nullable=False)
     purchase_date: Mapped[date] = mapped_column(Date, nullable=False)

api/src/cartsnitch_api/models/user.py

@@ -1,10 +1,11 @@
 """User and UserStoreAccount models."""
 
-import uuid
+import secrets
 from datetime import datetime
 from typing import TYPE_CHECKING
 
-from sqlalchemy import DateTime, ForeignKey, String, UniqueConstraint
+import sqlalchemy as sa
+from sqlalchemy import Boolean, DateTime, ForeignKey, String, Text, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from cartsnitch_api.constants import AccountStatus
@@ -16,14 +17,28 @@ if TYPE_CHECKING:
     from cartsnitch_api.models.store import Store
 
 
-class User(UUIDPrimaryKeyMixin, TimestampMixin, Base):
+class User(TimestampMixin, Base):
     """Application user."""
 
     __tablename__ = "users"
 
+    id: Mapped[str] = mapped_column(Text, primary_key=True)
     email: Mapped[str] = mapped_column(String(255), nullable=False, unique=True)
-    hashed_password: Mapped[str] = mapped_column(String(255), nullable=False)
+    hashed_password: Mapped[str | None] = mapped_column(String(255), nullable=True)
     display_name: Mapped[str | None] = mapped_column(String(100))
+    email_verified: Mapped[bool] = mapped_column(
+        Boolean, nullable=False, server_default="false"
+    )
+    image: Mapped[str | None] = mapped_column(Text, nullable=True)
+    email_inbound_token: Mapped[str] = mapped_column(
+        String(22),
+        nullable=False,
+        unique=True,
+        default=lambda: secrets.token_urlsafe(16),
+        server_default=sa.text(
+            "replace(replace(trim(trailing '=' from encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_')"
+        ),
+    )
 
     # Relationships
     store_accounts: Mapped[list["UserStoreAccount"]] = relationship(back_populates="user")
@@ -36,8 +51,8 @@ class UserStoreAccount(UUIDPrimaryKeyMixin, TimestampMixin, Base):
     __tablename__ = "user_store_accounts"
     __table_args__ = (UniqueConstraint("user_id", "store_id", name="uq_user_store_account"),)
 
-    user_id: Mapped[uuid.UUID] = mapped_column(ForeignKey("users.id"), nullable=False)
-    store_id: Mapped[uuid.UUID] = mapped_column(ForeignKey("stores.id"), nullable=False)
+    user_id: Mapped[str] = mapped_column(ForeignKey("users.id"), nullable=False)
+    store_id: Mapped[str] = mapped_column(ForeignKey("stores.id"), nullable=False)
     session_data: Mapped[dict | None] = mapped_column(EncryptedJSON)
     session_expires_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
     last_sync_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))

api/src/cartsnitch_api/routes/health.py

@@ -1,8 +1,11 @@
 """Health check and error metrics endpoints."""
 
 from fastapi import APIRouter, Depends
+from sqlalchemy import text
 
 from cartsnitch_api.auth.dependencies import verify_service_key
+from cartsnitch_api.cache import get_redis
+from cartsnitch_api.database import get_engine
 from cartsnitch_api.middleware.error_handler import get_error_monitor
 
 router = APIRouter(tags=["health"])
@@ -10,7 +13,27 @@ router = APIRouter(tags=["health"])
 
 @router.get("/health")
 async def health():
-    return {"status": "ok"}
+    engine = get_engine()
+    db_ok = False
+    redis_ok = False
+
+    try:
+        async with engine.connect() as conn:
+            await conn.execute(text("SELECT 1"))
+        db_ok = True
+    except Exception:
+        pass
+
+    try:
+        r = get_redis()
+        if r:
+            await r.ping()
+            redis_ok = True
+    except Exception:
+        pass
+
+    status = "ok" if db_ok else "degraded"
+    return {"status": status, "db": db_ok, "redis": redis_ok}
 
 
 @router.get("/internal/error-stats", dependencies=[Depends(verify_service_key)])

api/src/cartsnitch_api/routes/public.py

@@ -18,10 +18,14 @@ router = APIRouter(prefix="/public", tags=["public"])
 
 
 @router.get("/trends/{product_id}", response_model=PublicTrendResponse)
-async def public_price_trend(product_id: UUID, db: AsyncSession = Depends(get_db)):
+async def public_price_trend(
+    product_id: UUID,
+    days: int = Query(90, ge=1, le=365),
+    db: AsyncSession = Depends(get_db),
+):
     svc = PublicService(db)
     try:
-        return await svc.get_trend(product_id)
+        return await svc.get_trend(product_id, days=days)
     except LookupError:
         raise HTTPException(
             status_code=status.HTTP_404_NOT_FOUND, detail="Product not found"
@@ -31,6 +35,7 @@ async def public_price_trend(product_id: UUID, db: AsyncSession = Depends(get_db
 @router.get("/store-comparison", response_model=PublicStoreComparisonResponse)
 async def public_store_comparison(
     product_ids: Annotated[list[UUID], Query(max_length=20)],
+    category: str | None = Query(None, max_length=100, pattern=r"^[a-zA-Z0-9 _-]+$"),
     db: AsyncSession = Depends(get_db),
 ):
     if not product_ids:
@@ -39,10 +44,14 @@ async def public_store_comparison(
             detail="At least one product_id is required",
         )
     svc = PublicService(db)
-    return await svc.get_store_comparison(product_ids)
+    return await svc.get_store_comparison(product_ids, category=category)
 
 
 @router.get("/inflation", response_model=PublicInflationResponse)
-async def public_inflation(db: AsyncSession = Depends(get_db)):
+async def public_inflation(
+    category: str | None = Query(None, max_length=100, pattern=r"^[a-zA-Z0-9 _-]+$"),
+    period: str = Query("all-time", pattern=r"^(all-time|1y|6m|3m|1m)$"),
+    db: AsyncSession = Depends(get_db),
+):
     svc = PublicService(db)
-    return await svc.get_inflation()
+    return await svc.get_inflation(category=category, period=period)

api/src/cartsnitch_api/routes/user.py

@@ -0,0 +1,32 @@
+"""User routes: per-user account endpoints (email-in address, etc.)."""
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from cartsnitch_api.auth.dependencies import get_current_user
+from cartsnitch_api.database import get_db
+from cartsnitch_api.schemas import EmailInAddressResponse
+from cartsnitch_api.services.auth import AuthService
+
+router = APIRouter(tags=["user"])
+
+
+@router.get("/me/email-in-address", response_model=EmailInAddressResponse)
+async def get_email_in_address(
+    user_id: str = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    svc = AuthService(db)
+    try:
+        email_address = await svc.get_email_in_address(user_id)
+        return EmailInAddressResponse(
+            email_address=email_address,
+            instructions=(
+                "Forward your digital receipt emails to this address. "
+                "We currently support Meijer, Kroger, and Target receipt emails."
+            ),
+        )
+    except LookupError:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND, detail="User not found"
+        ) from None

api/src/cartsnitch_api/schemas.py

@@ -16,12 +16,17 @@ class UpdateUserRequest(BaseModel):
 
 
 class UserResponse(BaseModel):
-    id: UUID
+    id: str
     email: str
     display_name: str
     created_at: datetime
 
 
+class EmailInAddressResponse(BaseModel):
+    email_address: str
+    instructions: str
+
+
 # ---------- Stores ----------
 
 

api/src/cartsnitch_api/services/auth.py

@@ -5,8 +5,6 @@ handled by the Better-Auth service (auth/). This service provides
 user lookup and profile update operations for the API gateway.
 """
 
-from uuid import UUID
-
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
@@ -15,7 +13,7 @@ class AuthService:
     def __init__(self, db: AsyncSession) -> None:
         self.db = db
 
-    async def get_user(self, user_id: UUID) -> dict:
+    async def get_user(self, user_id: str) -> dict:
         from cartsnitch_api.models import User
 
         result = await self.db.execute(select(User).where(User.id == user_id))
@@ -30,7 +28,7 @@ class AuthService:
             "created_at": user.created_at,
         }
 
-    async def update_user(self, user_id: UUID, **fields) -> dict:
+    async def update_user(self, user_id: str, **fields) -> dict:
         from cartsnitch_api.models import User
 
         result = await self.db.execute(select(User).where(User.id == user_id))
@@ -58,7 +56,7 @@ class AuthService:
             "created_at": user.created_at,
         }
 
-    async def delete_user(self, user_id: UUID) -> None:
+    async def delete_user(self, user_id: str) -> None:
         from cartsnitch_api.models import User
 
         result = await self.db.execute(select(User).where(User.id == user_id))
@@ -68,3 +66,14 @@ class AuthService:
 
         await self.db.delete(user)
         await self.db.commit()
+
+    async def get_email_in_address(self, user_id: str) -> str:
+        """Return the per-user email-in address for receipt forwarding."""
+        from cartsnitch_api.models import User
+
+        result = await self.db.execute(select(User).where(User.id == user_id))
+        user = result.scalar_one_or_none()
+        if not user:
+            raise LookupError("User not found")
+
+        return f"receipts+{user.email_inbound_token}@receipts.cartsnitch.com"

api/src/cartsnitch_api/services/public.py

@@ -1,5 +1,6 @@
 """Public service — unauthenticated price transparency endpoints."""
 
+from datetime import date, timedelta
 from uuid import UUID
 
 from sqlalchemy import and_, func, select
@@ -13,7 +14,7 @@ class PublicService:
     def __init__(self, db: AsyncSession) -> None:
         self.db = db
 
-    async def get_trend(self, product_id: UUID) -> dict:
+    async def get_trend(self, product_id: UUID, days: int = 90) -> dict:
         from cartsnitch_api.models import NormalizedProduct, PriceHistory
 
         result = await self.db.execute(
@@ -23,9 +24,13 @@ class PublicService:
         if not product:
             raise LookupError("Product not found")
 
+        date_threshold = date.today() - timedelta(days=days)
         prices_result = await self.db.execute(
             select(PriceHistory)
-            .where(PriceHistory.normalized_product_id == product_id)
+            .where(
+                PriceHistory.normalized_product_id == product_id,
+                PriceHistory.observed_date >= date_threshold,
+            )
             .options(selectinload(PriceHistory.store))
             .order_by(PriceHistory.observed_date)
         )
@@ -45,20 +50,25 @@ class PublicService:
             ],
         }
 
-    async def get_store_comparison(self, product_ids: list[UUID]) -> dict:
+    async def get_store_comparison(
+        self, product_ids: list[UUID], category: str | None = None
+    ) -> dict:
         from cartsnitch_api.models import NormalizedProduct, PriceHistory
 
         if not product_ids:
             return {"products": []}
 
-        # Fetch all products in one query
-        prod_result = await self.db.execute(
-            select(NormalizedProduct).where(NormalizedProduct.id.in_(product_ids))
-        )
+        product_query = select(NormalizedProduct).where(NormalizedProduct.id.in_(product_ids))
+        if category:
+            product_query = product_query.where(NormalizedProduct.category == category)
+        prod_result = await self.db.execute(product_query)
         products_by_id = {p.id: p for p in prod_result.scalars().all()}
 
-        # Latest prices for all requested products in one query
-        subq = latest_price_per_store(product_ids)
+        if not products_by_id:
+            return {"products": []}
+
+        filtered_product_ids = list(products_by_id.keys())
+        subq = latest_price_per_store(filtered_product_ids)
         prices_result = await self.db.execute(
             select(PriceHistory)
             .join(
@@ -69,18 +79,17 @@ class PublicService:
                     PriceHistory.normalized_product_id == subq.c.normalized_product_id,
                 ),
             )
-            .where(PriceHistory.normalized_product_id.in_(product_ids))
+            .where(PriceHistory.normalized_product_id.in_(filtered_product_ids))
             .options(selectinload(PriceHistory.store))
         )
         all_prices = prices_result.scalars().all()
 
-        # Group by product
         prices_by_product: dict[UUID, list] = {}
         for ph in all_prices:
             prices_by_product.setdefault(ph.normalized_product_id, []).append(ph)
 
         products = []
-        for pid in product_ids:
+        for pid in filtered_product_ids:
             product = products_by_id.get(pid)
             if not product:
                 continue
@@ -102,19 +111,29 @@ class PublicService:
 
         return {"products": products}
 
-    async def get_inflation(self) -> dict:
+    async def get_inflation(self, category: str | None = None, period: str = "all-time") -> dict:
         """Aggregate price change stats. Compares average prices across periods."""
         from cartsnitch_api.models import NormalizedProduct, PriceHistory
 
-        # Get average prices grouped by category for recent vs older data
-        result = await self.db.execute(
-            select(
-                NormalizedProduct.category,
-                func.avg(PriceHistory.regular_price),
-            )
-            .join(NormalizedProduct)
-            .group_by(NormalizedProduct.category)
-        )
+        date_threshold = None
+        if period != "all-time":
+            days_map = {"1y": 365, "6m": 180, "3m": 90, "1m": 30}
+            days = days_map.get(period, 365)
+            date_threshold = date.today() - timedelta(days=days)
+
+        query = select(
+            NormalizedProduct.category,
+            func.avg(PriceHistory.regular_price),
+        ).join(NormalizedProduct)
+
+        if category:
+            query = query.where(NormalizedProduct.category == category)
+        if date_threshold:
+            query = query.where(PriceHistory.observed_date >= date_threshold)
+
+        query = query.group_by(NormalizedProduct.category)
+
+        result = await self.db.execute(query)
         categories = {}
         for row in result.all():
             cat, avg_price = row
@@ -122,7 +141,7 @@ class PublicService:
                 categories[cat] = float(avg_price) if avg_price else 0.0
 
         return {
-            "period": "all-time",
+            "period": period,
             "cartsnitch_index": sum(categories.values()) / max(len(categories), 1),
             "cpi_baseline": 100.0,
             "categories": categories,

api/tests/conftest.py

@@ -19,6 +19,25 @@ from cartsnitch_api.database import get_db
 from cartsnitch_api.main import create_app
 from cartsnitch_api.models import Base
 
+TEST_JWT_SECRET = secrets.token_urlsafe(32)
+TEST_SERVICE_KEY = secrets.token_urlsafe(32)
+TEST_FERNET_KEY = "7reF42nmTwbdN21PBoubGp7h_FU8qSimstmlaMLoRK8="
+
+
+@pytest.fixture(autouse=True)
+def setup_test_settings():
+    original_jwt = cartsnitch_settings.jwt_secret_key
+    original_service = cartsnitch_settings.service_key
+    original_fernet = cartsnitch_settings.fernet_key
+    cartsnitch_settings.jwt_secret_key = TEST_JWT_SECRET
+    cartsnitch_settings.service_key = TEST_SERVICE_KEY
+    cartsnitch_settings.fernet_key = TEST_FERNET_KEY
+    yield
+    cartsnitch_settings.jwt_secret_key = original_jwt
+    cartsnitch_settings.service_key = original_service
+    cartsnitch_settings.fernet_key = original_fernet
+
+
 TEST_DATABASE_URL = "sqlite+aiosqlite:///:memory:"
 
 
@@ -60,7 +79,8 @@ async def db_engine():
     async with engine.begin() as conn:
         await conn.run_sync(Base.metadata.create_all)
         # Create Better-Auth tables (not managed by SQLAlchemy models)
-        await conn.execute(text("""
+        await conn.execute(
+            text("""
             CREATE TABLE IF NOT EXISTS sessions (
                 id TEXT PRIMARY KEY,
                 token TEXT NOT NULL UNIQUE,
@@ -71,8 +91,10 @@ async def db_engine():
                 created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
                 updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL
             )
-        """))
-        await conn.execute(text("""
+        """)
+        )
+        await conn.execute(
+            text("""
             CREATE TABLE IF NOT EXISTS accounts (
                 id TEXT PRIMARY KEY,
                 user_id TEXT NOT NULL,
@@ -88,8 +110,10 @@ async def db_engine():
                 created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
                 updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL
             )
-        """))
-        await conn.execute(text("""
+        """)
+        )
+        await conn.execute(
+            text("""
             CREATE TABLE IF NOT EXISTS verifications (
                 id TEXT PRIMARY KEY,
                 identifier TEXT NOT NULL,
@@ -98,7 +122,8 @@ async def db_engine():
                 created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
                 updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL
             )
-        """))
+        """)
+        )
 
     yield engine
 
@@ -133,10 +158,13 @@ async def client(db_engine):
     app.dependency_overrides.clear()
 
 
-async def _create_test_user_and_session(client: AsyncClient, db_engine, **user_overrides) -> tuple[dict, str]:
+async def _create_test_user_and_session(
+    client: AsyncClient, db_engine, **user_overrides
+) -> tuple[dict, str]:
     """Create a test user and a valid session directly in the DB.
 
-    Returns (user_dict, session_token).
+    Returns (user_dict, session_token).  Better-Auth stores the raw token
+    in the DB, so we insert it as-is.
     """
     user_id = str(uuid.uuid4())
     email = user_overrides.get("email", "test@example.com")

api/tests/test_auth/test_auth_endpoints.py

@@ -71,6 +71,56 @@ async def test_delete_me(client, auth_headers):
     assert resp.status_code == 404
 
 
+@pytest.mark.asyncio
+async def test_get_me_compound_cookie(client, db_engine):
+    """Compound cookie value (token.sessionId) must be parsed to extract the token part."""
+    from tests.conftest import _create_test_user_and_session
+
+    _, session_token = await _create_test_user_and_session(
+        client, db_engine, email="compound@example.com", display_name="Compound User"
+    )
+    compound = f"{session_token}.B0atkJCFxK1rZlwWPMK97nVO2LnyDun7"
+    resp = await client.get(
+        "/auth/me",
+        headers={"Cookie": f"better-auth.session_token={compound}"},
+    )
+    assert resp.status_code == 200
+    assert resp.json()["email"] == "compound@example.com"
+
+
+@pytest.mark.asyncio
+async def test_get_me_raw_token_cookie(client, db_engine):
+    """Raw token (no dot) in cookie must still work — regression guard."""
+    from tests.conftest import _create_test_user_and_session
+
+    _, session_token = await _create_test_user_and_session(
+        client, db_engine, email="rawcookie@example.com", display_name="Raw Cookie User"
+    )
+    resp = await client.get(
+        "/auth/me",
+        headers={"Cookie": f"better-auth.session_token={session_token}"},
+    )
+    assert resp.status_code == 200
+    assert resp.json()["email"] == "rawcookie@example.com"
+
+
+@pytest.mark.asyncio
+async def test_get_me_compound_bearer(client, db_engine):
+    """Compound Bearer token (token.sessionId) must be parsed to extract the token part."""
+    from tests.conftest import _create_test_user_and_session
+
+    _, session_token = await _create_test_user_and_session(
+        client, db_engine, email="compoundbearer@example.com", display_name="Compound Bearer User"
+    )
+    compound = f"{session_token}.B0atkJCFxK1rZlwWPMK97nVO2LnyDun7"
+    resp = await client.get(
+        "/auth/me",
+        headers={"Authorization": f"Bearer {compound}"},
+    )
+    assert resp.status_code == 200
+    assert resp.json()["email"] == "compoundbearer@example.com"
+
+
 @pytest.mark.asyncio
 async def test_expired_session_rejected(client, db_engine):
     """Expired sessions must be rejected."""

api/tests/test_cache.py

@@ -0,0 +1,50 @@
+"""Tests for Redis/DragonflyDB caching lifecycle."""
+
+import pytest
+
+from cartsnitch_api.cache import CacheClient, close_redis, get_redis, init_redis
+
+
+@pytest.mark.asyncio
+async def test_init_redis_creates_client():
+    """Test that init_redis creates the Redis client."""
+    await init_redis()
+    try:
+        r = get_redis()
+        assert r is not None
+        await r.ping()
+    finally:
+        await close_redis()
+
+
+@pytest.mark.asyncio
+async def test_close_redis_clears_client():
+    """Test that close_redis properly closes and clears the client."""
+    await init_redis()
+    await close_redis()
+    assert get_redis() is None
+
+
+@pytest.mark.asyncio
+async def test_cache_client_get_returns_none_when_not_connected():
+    """Test that CacheClient.get returns None gracefully when Redis is down."""
+    client = CacheClient()
+    # Without init_redis, get should return None
+    result = await client.get("test-key")
+    assert result is None
+
+
+@pytest.mark.asyncio
+async def test_cache_client_set_does_not_raise_when_not_connected():
+    """Test that CacheClient.set does not raise when Redis is down."""
+    client = CacheClient()
+    # Without init_redis, set should not raise
+    await client.set("test-key", "test-value", ttl_seconds=60)
+
+
+@pytest.mark.asyncio
+async def test_cache_client_delete_does_not_raise_when_not_connected():
+    """Test that CacheClient.delete does not raise when Redis is down."""
+    client = CacheClient()
+    # Without init_redis, delete should not raise
+    await client.delete("test-key")

api/tests/test_config.py

@@ -0,0 +1,48 @@
+"""Tests for Settings config, specifically the database_url env var fallback."""
+
+import os
+
+from cartsnitch_api.config import Settings
+
+
+def test_database_url_prefers_cartsnitch_prefix():
+    """CARTSNITCH_DATABASE_URL takes precedence over DATABASE_URL."""
+    env = {
+        "CARTSNITCH_DATABASE_URL": "postgresql+asyncpg://user1:pass1@host1:5432/db1",
+        "DATABASE_URL": "postgresql://user2:pass2@host2:5432/db2",
+    }
+    settings = Settings(**env)
+    assert settings.database_url == "postgresql+asyncpg://user1:pass1@host1:5432/db1"
+
+
+def test_database_url_falls_back_to_database_url():
+    """When CARTSNITCH_DATABASE_URL is absent, DATABASE_URL is accepted."""
+    env = {
+        "DATABASE_URL": "postgresql://user:pass@dbhost:5432/mydb",
+    }
+    settings = Settings(**env)
+    assert settings.database_url == "postgresql+asyncpg://user:pass@dbhost:5432/mydb"
+
+
+def test_database_url_normalizes_plain_postgresql_prefix():
+    """DATABASE_URL with plain postgresql:// is normalized to postgresql+asyncpg://."""
+    env = {
+        "DATABASE_URL": "postgresql://cartsnitch:cartsnitch@localhost:5432/cartsnitch",
+    }
+    settings = Settings(**env)
+    assert settings.database_url == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"
+
+
+def test_database_url_preserves_asyncpg_prefix():
+    """CARTSNITCH_DATABASE_URL with postgresql+asyncpg:// is left unchanged."""
+    env = {
+        "CARTSNITCH_DATABASE_URL": "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch",
+    }
+    settings = Settings(**env)
+    assert settings.database_url == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"
+
+
+def test_database_url_default():
+    """When neither env var is set, the hardcoded default is used."""
+    settings = Settings()
+    assert settings.database_url == "postgresql+asyncpg://cartsnitch:cartsnitch@localhost:5432/cartsnitch"

api/tests/test_database.py

@@ -0,0 +1,62 @@
+"""Tests for database initialization and lifecycle."""
+
+import pytest
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+
+from cartsnitch_api.database import (
+    close_db,
+    create_db_engine,
+    get_engine,
+    init_db,
+)
+
+
+@pytest.mark.asyncio
+async def test_create_db_engine_creates_engine_with_pool_settings():
+    """Test that create_db_engine creates engine with correct pool settings."""
+    engine = create_db_engine()
+    assert engine is not None
+    pool = engine.pool
+    assert pool.size() == 10
+    assert pool._max_overflow == 20
+    await engine.dispose()
+
+
+@pytest.mark.asyncio
+async def test_init_db_sets_engine_and_factory():
+    """Test that init_db properly initializes the engine and session factory."""
+    await init_db()
+    try:
+        eng = get_engine()
+        assert eng is not None
+        from cartsnitch_api import database
+
+        assert database.async_session_factory is not None
+    finally:
+        await close_db()
+
+
+@pytest.mark.asyncio
+async def test_close_db_disposes_engine():
+    """Test that close_db properly disposes the engine."""
+    await init_db()
+    await close_db()
+    assert get_engine() is None
+    from cartsnitch_api import database
+
+    assert database.async_session_factory is None
+
+
+@pytest.mark.asyncio
+async def test_get_db_yields_session_after_init():
+    """Test that get_db yields working sessions after init_db."""
+    await init_db()
+    try:
+        from cartsnitch_api.database import get_db
+
+        gen = get_db()
+        session = await gen.__anext__()
+        assert isinstance(session, AsyncSession)
+        await gen.aclose()
+    finally:
+        await close_db()

api/tests/test_e2e/test_email_in_address.py

@@ -0,0 +1,61 @@
+"""Tests for GET /api/v1/me/email-in-address endpoint."""
+
+import pytest
+from httpx import AsyncClient
+
+
+@pytest.mark.asyncio
+async def test_get_email_in_address_authenticated(client: AsyncClient, auth_headers: dict):
+    """Authenticated user gets their email-in address."""
+    response = await client.get(
+        "/api/v1/me/email-in-address",
+        headers=auth_headers,
+    )
+
+    assert response.status_code == 200
+    data = response.json()
+    assert "email_address" in data
+    assert data["email_address"].startswith("receipts+")
+    assert data["email_address"].endswith("@receipts.cartsnitch.com")
+    assert len(data["email_address"]) > len("receipts+@receipts.cartsnitch.com")
+    assert "instructions" in data
+    assert "Meijer" in data["instructions"]
+    assert "Kroger" in data["instructions"]
+    assert "Target" in data["instructions"]
+
+
+@pytest.mark.asyncio
+async def test_get_email_in_address_unauthenticated(client: AsyncClient):
+    """Unauthenticated request returns 401."""
+    response = await client.get("/api/v1/me/email-in-address")
+    assert response.status_code == 401
+
+
+@pytest.mark.asyncio
+async def test_get_email_in_address_invalid_token(client: AsyncClient):
+    """Invalid JWT token returns 401."""
+    response = await client.get(
+        "/api/v1/me/email-in-address",
+        headers={"Authorization": "Bearer invalid-token-xyz"},
+    )
+    assert response.status_code == 401
+
+
+@pytest.mark.asyncio
+async def test_email_address_format(client: AsyncClient, auth_headers: dict):
+    """Email address format is receipts+{22-char-urlsafe-token}@receipts.cartsnitch.com."""
+    response = await client.get(
+        "/api/v1/me/email-in-address",
+        headers=auth_headers,
+    )
+
+    assert response.status_code == 200
+    data = response.json()
+    email = data["email_address"]
+    # Format: receipts+<22-char-urlsafe-token>@receipts.cartsnitch.com
+    assert email.startswith("receipts+")
+    assert email.endswith("@receipts.cartsnitch.com")
+    # token_urlsafe(16) produces 22 chars
+    middle = email[len("receipts+") : -len("@receipts.cartsnitch.com")]
+    assert len(middle) == 22
+    assert "@" not in middle

api/tests/test_middleware/test_rate_limit.py

@@ -1,47 +1,184 @@
 """Tests for rate limiting middleware."""
 
+import time
+from unittest.mock import AsyncMock, MagicMock, patch
+
 import pytest
 
-from cartsnitch_api.middleware.rate_limit import _SlidingWindowCounter
+from cartsnitch_api.config import settings
+from cartsnitch_api.middleware.rate_limit import (
+    InMemorySlidingWindow,
+    RedisSlidingWindow,
+    _get_client_ip,
+    _get_rate_limit_key,
+)
 
 
-class TestSlidingWindowCounter:
+class TestInMemorySlidingWindow:
     def test_allows_within_limit(self):
-        counter = _SlidingWindowCounter(max_requests=5, window_seconds=60)
+        limiter = InMemorySlidingWindow(max_requests=5, window_seconds=60)
         for i in range(5):
-            allowed, remaining, retry = counter.is_allowed("test-key")
+            allowed, remaining, retry = limiter.is_allowed("test-key")
             assert allowed is True
             assert remaining == 4 - i
 
     def test_blocks_over_limit(self):
-        counter = _SlidingWindowCounter(max_requests=3, window_seconds=60)
+        limiter = InMemorySlidingWindow(max_requests=3, window_seconds=60)
         for _ in range(3):
-            counter.is_allowed("test-key")
+            limiter.is_allowed("test-key")
 
-        allowed, remaining, retry = counter.is_allowed("test-key")
+        allowed, remaining, retry = limiter.is_allowed("test-key")
         assert allowed is False
         assert remaining == 0
         assert retry > 0
 
     def test_separate_keys(self):
-        counter = _SlidingWindowCounter(max_requests=2, window_seconds=60)
-        # Fill key-a
-        counter.is_allowed("key-a")
-        counter.is_allowed("key-a")
-        allowed_a, _, _ = counter.is_allowed("key-a")
+        limiter = InMemorySlidingWindow(max_requests=2, window_seconds=60)
+        limiter.is_allowed("key-a")
+        limiter.is_allowed("key-a")
+        allowed_a, _, _ = limiter.is_allowed("key-a")
         assert allowed_a is False
 
-        # key-b should still be allowed
-        allowed_b, remaining, _ = counter.is_allowed("key-b")
+        allowed_b, remaining, _ = limiter.is_allowed("key-b")
         assert allowed_b is True
         assert remaining == 1
 
+    def test_resets_after_window_expires(self):
+        limiter = InMemorySlidingWindow(max_requests=2, window_seconds=1)
+        for _ in range(2):
+            limiter.is_allowed("test-key")
+        allowed, remaining, _ = limiter.is_allowed("test-key")
+        assert allowed is False
+
+        time.sleep(1.1)
+        allowed, remaining, _ = limiter.is_allowed("test-key")
+        assert allowed is True
+        assert remaining == 1
+
+
+class TestGetClientIp:
+    def test_x_forwarded_for_single(self):
+        req = MagicMock()
+        req.headers = {"x-forwarded-for": "192.168.1.1"}
+        req.client = None
+        assert _get_client_ip(req) == "192.168.1.1"
+
+    def test_x_forwarded_for_multiple(self):
+        req = MagicMock()
+        req.headers = {"x-forwarded-for": "192.168.1.1, 10.0.0.1, 172.16.0.1"}
+        req.client = None
+        assert _get_client_ip(req) == "192.168.1.1"
+
+    def test_x_forwarded_for_with_port(self):
+        req = MagicMock()
+        req.headers = {"x-forwarded-for": "192.168.1.1:8080"}
+        req.client = None
+        assert _get_client_ip(req) == "192.168.1.1"
+
+    def test_no_forwarded_header(self):
+        req = MagicMock()
+        req.headers = {}
+        req.client.host = "127.0.0.1"
+        assert _get_client_ip(req) == "127.0.0.1"
+
+    def test_no_client(self):
+        req = MagicMock()
+        req.headers = {}
+        req.client = None
+        assert _get_client_ip(req) == "unknown"
+
+
+class TestGetRateLimitKey:
+    def _make_request(
+        self,
+        path: str = "/purchases",
+        method: str = "GET",
+        auth_header: str = "",
+        headers: dict | None = None,
+    ) -> MagicMock:
+        req = MagicMock()
+        req.url.path = path
+        req.method = method
+        req.headers = dict(headers) if headers else {}
+        if auth_header:
+            req.headers["authorization"] = auth_header
+        return req
+
+    def test_public_path_uses_public_limiter(self):
+        req = self._make_request("/public/inflation")
+        key, limiter = _get_rate_limit_key(req)
+        assert key.startswith("ip:")
+        assert limiter.max_requests == settings.rate_limit_requests
+
+    def test_auth_post_path_uses_strict_limiter(self):
+        req = self._make_request("/auth/login", method="POST")
+        key, limiter = _get_rate_limit_key(req)
+        assert key.startswith("ip:")
+        assert limiter.max_requests == settings.rate_limit_auth_requests
+        assert limiter.window_seconds == settings.rate_limit_auth_window_seconds
+
+    def test_auth_get_path_uses_auth_limiter(self):
+        req = self._make_request("/auth/me", method="GET")
+        key, limiter = _get_rate_limit_key(req)
+        assert key.startswith("ip:")
+        assert limiter.max_requests == settings.rate_limit_requests * 5
+
+    def test_authenticated_token_uses_auth_limiter(self):
+        req = self._make_request("/purchases", auth_header="Bearer token123")
+        key, limiter = _get_rate_limit_key(req)
+        assert key.startswith("token:")
+        assert limiter.max_requests == settings.rate_limit_requests * 5
+
+    def test_distinct_tokens_produce_distinct_keys(self):
+        req1 = self._make_request("/purchases", auth_header="Bearer token_alpha_12345")
+        req2 = self._make_request("/purchases", auth_header="Bearer token_beta_67890")
+        key1, _ = _get_rate_limit_key(req1)
+        key2, _ = _get_rate_limit_key(req2)
+        assert key1 != key2
+
+    def test_same_token_produces_same_key(self):
+        req1 = self._make_request("/purchases", auth_header="Bearer same_token_value_abc")
+        req2 = self._make_request("/purchases", auth_header="Bearer same_token_value_abc")
+        key1, _ = _get_rate_limit_key(req1)
+        key2, _ = _get_rate_limit_key(req2)
+        assert key1 == key2
+
+    def test_key_does_not_contain_raw_token_suffix(self):
+        raw_token = "my_secret_jwt_token_xyz"
+        req = self._make_request("/purchases", auth_header=f"Bearer {raw_token}")
+        key, _ = _get_rate_limit_key(req)
+        assert raw_token[-16:] not in key
+        assert raw_token not in key
+
+
+class TestRedisSlidingWindowFallback:
+    @pytest.mark.asyncio
+    async def test_fallback_on_redis_connection_error(self):
+        mock_redis = AsyncMock()
+        mock_redis.pipeline.return_value = AsyncMock()
+        pipe_mock = AsyncMock()
+        pipe_mock.execute.side_effect = Exception("Connection refused")
+        mock_redis.pipeline.return_value = pipe_mock
+
+        limiter = RedisSlidingWindow(mock_redis, max_requests=5, window_seconds=60)
+        allowed, remaining, retry = await limiter.is_allowed("test-key")
+        assert allowed is True
+        assert remaining == 4
+
+    @pytest.mark.asyncio
+    async def test_fallback_on_redis_error_during_pipeline(self):
+        mock_redis = AsyncMock()
+        pipe_mock = AsyncMock()
+        pipe_mock.execute.side_effect = Exception("Redis error")
+        mock_redis.pipeline.return_value = pipe_mock
+
+        limiter = RedisSlidingWindow(mock_redis, max_requests=3, window_seconds=60)
+        allowed, remaining, retry = await limiter.is_allowed("test-key")
+        assert allowed is True
+
 
 @pytest.mark.asyncio
 async def test_rate_limit_returns_429(client):
-    """Public endpoint should return 429 after limit exceeded."""
-    # The default limit is 60/min — we won't hit it in normal tests,
-    # but we verify the middleware adds rate limit headers.
     resp = await client.get("/public/inflation")
     assert "x-ratelimit-limit" in resp.headers
     assert "x-ratelimit-remaining" in resp.headers
@@ -49,7 +186,6 @@ async def test_rate_limit_returns_429(client):
 
 @pytest.mark.asyncio
 async def test_health_skips_rate_limit(client):
-    """Health endpoint should not have rate limit headers."""
     resp = await client.get("/health")
     assert resp.status_code == 200
     assert "x-ratelimit-limit" not in resp.headers

api/tests/test_openapi.py

@@ -6,13 +6,14 @@ from httpx import ASGITransport, AsyncClient
 from cartsnitch_api.main import app
 
 EXPECTED_ROUTES = [
-    # Auth (6)
+    # Auth (7)
     ("post", "/auth/register"),
     ("post", "/auth/login"),
     ("post", "/auth/refresh"),
     ("get", "/auth/me"),
     ("patch", "/auth/me"),
     ("delete", "/auth/me"),
+    ("get", "/auth/me/email-in-address"),
     # Stores (4)
     ("get", "/stores"),
     ("get", "/me/stores"),
@@ -89,4 +90,4 @@ async def test_route_count():
                 if method in ("get", "post", "put", "delete", "patch"):
                     count += 1
 
-        assert count == 33, f"Expected 33 routes, found {count}"
+        assert count == 34, f"Expected 34 routes, found {count}"

api/tests/test_routes/test_health.py

@@ -0,0 +1,77 @@
+"""Tests for health check endpoint."""
+
+import pytest
+from unittest.mock import AsyncMock, patch
+
+from cartsnitch_api.database import init_db, close_db
+
+
+@pytest.mark.asyncio
+async def test_health_returns_db_and_redis_fields(client):
+    """Test that health endpoint returns db and redis status fields."""
+    from cartsnitch_api.cache import init_redis, close_redis
+
+    await init_db()
+    await init_redis()
+
+    try:
+        response = await client.get("/health")
+        assert response.status_code == 200
+        data = response.json()
+        assert "status" in data
+        assert "db" in data
+        assert "redis" in data
+    finally:
+        await close_redis()
+        await close_db()
+
+
+@pytest.mark.asyncio
+async def test_health_returns_degraded_when_db_down():
+    """Test that health returns degraded when database is down."""
+    from cartsnitch_api.database import _engine
+    from cartsnitch_api.routes.health import health
+
+    # Simulate engine is None (DB not initialized)
+    with patch("cartsnitch_api.routes.health.get_engine", return_value=None):
+        response = await health()
+        assert response["status"] == "degraded"
+        assert response["db"] is False
+
+
+@pytest.mark.asyncio
+async def test_health_returns_ok_when_db_up(client):
+    """Test that health returns ok when database is up."""
+    from cartsnitch_api.database import init_db, close_db
+    from cartsnitch_api.cache import init_redis, close_redis
+
+    await init_db()
+    await init_redis()
+
+    try:
+        response = await client.get("/health")
+        assert response.status_code == 200
+        data = response.json()
+        if data["db"]:
+            assert data["status"] == "ok"
+    finally:
+        await close_redis()
+        await close_db()
+
+
+@pytest.mark.asyncio
+async def test_health_redis_down_does_not_make_unhealthy(client):
+    """Test that Redis being down does not make health return unhealthy."""
+    from cartsnitch_api.database import init_db, close_db
+
+    await init_db()
+
+    try:
+        response = await client.get("/health")
+        data = response.json()
+        # Redis being down should not make status "degraded"
+        # Only DB failure makes it degraded
+        if not data["db"]:
+            assert data["status"] == "degraded"
+    finally:
+        await close_db()

api/tests/test_routes/test_public.py

@@ -71,3 +71,97 @@ async def test_public_inflation(client, public_data):
     data = resp.json()
     assert "categories" in data
     assert "cartsnitch_index" in data
+
+
+@pytest.mark.asyncio
+async def test_trend_invalid_uuid(client):
+    resp = await client.get("/public/trends/not-a-uuid")
+    assert resp.status_code == 422
+    assert "detail" in resp.json()
+    assert "stack" not in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_trend_days_zero(client, public_data):
+    pid = str(public_data["product"].id)
+    resp = await client.get(f"/public/trends/{pid}?days=0")
+    assert resp.status_code == 422
+    assert "detail" in resp.json()
+    assert "stack" not in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_trend_days_negative(client, public_data):
+    pid = str(public_data["product"].id)
+    resp = await client.get(f"/public/trends/{pid}?days=-1")
+    assert resp.status_code == 422
+    assert "detail" in resp.json()
+    assert "stack" not in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_trend_days_over_max(client, public_data):
+    pid = str(public_data["product"].id)
+    resp = await client.get(f"/public/trends/{pid}?days=999")
+    assert resp.status_code == 422
+    assert "detail" in resp.json()
+    assert "stack" not in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_trend_days_valid(client, public_data):
+    pid = str(public_data["product"].id)
+    resp = await client.get(f"/public/trends/{pid}?days=30")
+    assert resp.status_code == 200
+    assert "product_name" in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_store_comparison_empty_list(client):
+    resp = await client.get("/public/store-comparison")
+    assert resp.status_code == 400
+    assert "detail" in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_store_comparison_category_xss(client, public_data):
+    pid = str(public_data["product"].id)
+    resp = await client.get(
+        f"/public/store-comparison?product_ids={pid}&category=<script>alert(1)</script>"
+    )
+    assert resp.status_code == 422
+    assert "detail" in resp.json()
+    assert "stack" not in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_store_comparison_category_sql_injection(client, public_data):
+    pid = str(public_data["product"].id)
+    resp = await client.get(f"/public/store-comparison?product_ids={pid}&category='; DROP TABLE--")
+    assert resp.status_code == 422
+    assert "detail" in resp.json()
+    assert "stack" not in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_inflation_invalid_period(client, public_data):
+    resp = await client.get("/public/inflation?period=10years")
+    assert resp.status_code == 422
+    assert "detail" in resp.json()
+    assert "stack" not in resp.json()
+
+
+@pytest.mark.asyncio
+async def test_inflation_valid_periods(client, public_data):
+    for period in ["all-time", "1y", "6m", "3m", "1m"]:
+        resp = await client.get(f"/public/inflation?period={period}")
+        assert resp.status_code == 200, f"period={period} failed"
+
+
+@pytest.mark.asyncio
+async def test_inflation_category_too_long(client, public_data):
+    long_category = "x" * 200
+    resp = await client.get(f"/public/inflation?category={long_category}")
+    assert resp.status_code == 422
+    assert "detail" in resp.json()
+    assert "stack" not in resp.json()

auth/.env.example

@@ -9,3 +9,7 @@ DATABASE_URL=postgresql://cartsnitch:cartsnitch@localhost:5432/cartsnitch
 
 # Port the auth service listens on
 PORT=3001
+
+# Resend email provider for transactional email
+RESEND_API_KEY=re_your_api_key_here
+FROM_EMAIL=CartSnitch <noreply@cartsnitch.com>

auth/Dockerfile

@@ -1,4 +1,5 @@
 FROM node:22-alpine AS builder
+RUN apk update && apk upgrade --no-cache
 WORKDIR /app
 COPY package.json package-lock.json* ./
 RUN npm ci
@@ -7,6 +8,7 @@ COPY src/ src/
 RUN npm run build
 
 FROM node:22-alpine
+RUN apk update && apk upgrade --no-cache
 WORKDIR /app
 ENV NODE_ENV=production
 COPY package.json package-lock.json* ./

auth/package-lock.json

@@ -8,12 +8,13 @@
       "name": "@cartsnitch/auth",
       "version": "0.1.0",
       "dependencies": {
-        "bcrypt": "^5.1.1",
+        "bcrypt": "^6.0.0",
         "better-auth": "^1.2.0",
-        "pg": "^8.13.0"
+        "pg": "^8.13.0",
+        "resend": "^6.11.0"
       },
       "devDependencies": {
-        "@types/bcrypt": "^5.0.2",
+        "@types/bcrypt": "^6.0.0",
         "@types/node": "^22.0.0",
         "@types/pg": "^8.11.0",
         "tsx": "^4.19.0",
@@ -590,26 +591,6 @@
         "node": ">=18"
       }
     },
-    "node_modules/@mapbox/node-pre-gyp": {
-      "version": "1.0.11",
-      "resolved": "https://registry.npmjs.org/@mapbox/node-pre-gyp/-/node-pre-gyp-1.0.11.tgz",
-      "integrity": "sha512-Yhlar6v9WQgUp/He7BdgzOz8lqMQ8sU+jkCq7Wx8Myc5YFJLbEe7lgui/V7G1qB1DJykHSGwreceSaD60Y0PUQ==",
-      "license": "BSD-3-Clause",
-      "dependencies": {
-        "detect-libc": "^2.0.0",
-        "https-proxy-agent": "^5.0.0",
-        "make-dir": "^3.1.0",
-        "node-fetch": "^2.6.7",
-        "nopt": "^5.0.0",
-        "npmlog": "^5.0.1",
-        "rimraf": "^3.0.2",
-        "semver": "^7.3.5",
-        "tar": "^6.1.11"
-      },
-      "bin": {
-        "node-pre-gyp": "bin/node-pre-gyp"
-      }
-    },
     "node_modules/@noble/ciphers": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-2.1.1.tgz",
@@ -653,6 +634,12 @@
         "node": ">=14"
       }
     },
+    "node_modules/@stablelib/base64": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@stablelib/base64/-/base64-1.0.1.tgz",
+      "integrity": "sha512-1bnPQqSxSuc3Ii6MhBysoWCg58j97aUjuCSZrGSmDxNqtytIi0k8utUenAwTZN4V5mXXYGsVUI9zeBqy+jBOSQ==",
+      "license": "MIT"
+    },
     "node_modules/@standard-schema/spec": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz",
@@ -660,9 +647,9 @@
       "license": "MIT"
     },
     "node_modules/@types/bcrypt": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/@types/bcrypt/-/bcrypt-5.0.2.tgz",
-      "integrity": "sha512-6atioO8Y75fNcbmj0G7UjI9lXN2pQ/IGJ2FWT4a/btd0Lk9lQalHLKhkgKVZ3r+spnmWUKfbMi1GEe9wyHQfNQ==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/@types/bcrypt/-/bcrypt-6.0.0.tgz",
+      "integrity": "sha512-/oJGukuH3D2+D+3H4JWLaAsJ/ji86dhRidzZ/Od7H/i8g+aCmvkeCc6Ni/f9uxGLSQVCRZkX2/lqEFG2BvWtlQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -691,71 +678,18 @@
         "pg-types": "^2.2.0"
       }
     },
-    "node_modules/abbrev": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
-      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
-      "license": "ISC"
-    },
-    "node_modules/agent-base": {
-      "version": "6.0.2",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
-      "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
-      "license": "MIT",
-      "dependencies": {
-        "debug": "4"
-      },
-      "engines": {
-        "node": ">= 6.0.0"
-      }
-    },
-    "node_modules/ansi-regex": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
-      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/aproba": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/aproba/-/aproba-2.1.0.tgz",
-      "integrity": "sha512-tLIEcj5GuR2RSTnxNKdkK0dJ/GrC7P38sUkiDmDuHfsHmbagTFAxDVIBltoklXEVIQ/f14IL8IMJ5pn9Hez1Ew==",
-      "license": "ISC"
-    },
-    "node_modules/are-we-there-yet": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-2.0.0.tgz",
-      "integrity": "sha512-Ci/qENmwHnsYo9xKIcUJN5LeDKdJ6R1Z1j9V/J5wyq8nh/mYPEpIKJbBZXtZjG04HiK7zV/p6Vs9952MrMeUIw==",
-      "deprecated": "This package is no longer supported.",
-      "license": "ISC",
-      "dependencies": {
-        "delegates": "^1.0.0",
-        "readable-stream": "^3.6.0"
-      },
-      "engines": {
-        "node": ">=10"
-      }
-    },
-    "node_modules/balanced-match": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
-      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
-      "license": "MIT"
-    },
     "node_modules/bcrypt": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/bcrypt/-/bcrypt-5.1.1.tgz",
-      "integrity": "sha512-AGBHOG5hPYZ5Xl9KXzU5iKq9516yEmvCKDg3ecP5kX2aB6UqTeXZxk2ELnDgDm6BQSMlLt9rDB4LoSMx0rYwww==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/bcrypt/-/bcrypt-6.0.0.tgz",
+      "integrity": "sha512-cU8v/EGSrnH+HnxV2z0J7/blxH8gq7Xh2JFT6Aroax7UohdmiJJlxApMxtKfuI7z68NvvVcmR78k2LbT6efhRg==",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
-        "@mapbox/node-pre-gyp": "^1.0.11",
-        "node-addon-api": "^5.0.0"
+        "node-addon-api": "^8.3.0",
+        "node-gyp-build": "^4.8.4"
       },
       "engines": {
-        "node": ">= 10.0.0"
+        "node": ">= 18"
       }
     },
     "node_modules/better-auth": {
@@ -883,90 +817,12 @@
         }
       }
     },
-    "node_modules/brace-expansion": {
-      "version": "1.1.13",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.13.tgz",
-      "integrity": "sha512-9ZLprWS6EENmhEOpjCYW2c8VkmOvckIJZfkr7rBW6dObmfgJ/L1GpSYW5Hpo9lDz4D1+n0Ckz8rU7FwHDQiG/w==",
-      "license": "MIT",
-      "dependencies": {
-        "balanced-match": "^1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
-    "node_modules/chownr": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/chownr/-/chownr-2.0.0.tgz",
-      "integrity": "sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ==",
-      "license": "ISC",
-      "engines": {
-        "node": ">=10"
-      }
-    },
-    "node_modules/color-support": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/color-support/-/color-support-1.1.3.tgz",
-      "integrity": "sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg==",
-      "license": "ISC",
-      "bin": {
-        "color-support": "bin.js"
-      }
-    },
-    "node_modules/concat-map": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
-      "license": "MIT"
-    },
-    "node_modules/console-control-strings": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
-      "integrity": "sha512-ty/fTekppD2fIwRvnZAVdeOiGd1c7YXEixbgJTNzqcxJWKQnjJ/V1bNEEE6hygpM3WjwHFUVK6HTjWSzV4a8sQ==",
-      "license": "ISC"
-    },
-    "node_modules/debug": {
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-      "license": "ISC",
-      "dependencies": {
-        "glob": "^7.1.3"
-      },
-      "bin": {
-        "rimraf": "bin.js"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/isaacs"
-      }
-    },
     "node_modules/rou3": {
       "version": "0.7.12",
       "resolved": "https://registry.npmjs.org/rou3/-/rou3-0.7.12.tgz",
       "integrity": "sha512-iFE4hLDuloSWcD7mjdCDhx2bKcIsYbtOTpfH5MHHLSKMOUyjqQXTeZVa289uuwEGEKFoE/BAPbhaU4B774nceg==",
       "license": "MIT"
     },
-    "node_modules/safe-buffer": {
-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
-      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
-        },
-        {
-          "type": "patreon",
-          "url": "https://www.patreon.com/feross"
-        },
-        {
-          "type": "consulting",
-          "url": "https://feross.org/support"
-        }
-      ],
-      "license": "MIT"
-    },
-    "node_modules/semver": {
-      "version": "7.7.4",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.4.tgz",
-      "integrity": "sha512-vFKC2IEtQnVhpT78h1Yp8wzwrf8CM+MzKMHGJZfBtzhZNycRFnXsHk6E5TxIkkMsgNS7mdX3AGB7x2QM2di4lA==",
-      "license": "ISC",
-      "bin": {
-        "semver": "bin/semver.js"
-      },
-      "engines": {
-        "node": ">=10"
-      }
-    },
-    "node_modules/set-blocking": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
-      "integrity": "sha512-KiKBS8AnWGEyLzofFfmvKwpdPzqiy16LvQfK3yv/fVH7Bj13/wl3JSR1J+rfgRE9q7xUJK4qvgS8raSOeLUehw==",
-      "license": "ISC"
-    },
     "node_modules/set-cookie-parser": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/set-cookie-parser/-/set-cookie-parser-3.1.0.tgz",
       "integrity": "sha512-kjnC1DXBHcxaOaOXBHBeRtltsDG2nUiUni+jP92M9gYdW12rsmx92UsfpH7o5tDRs7I1ZZPSQJQGv3UaRfCiuw==",
       "license": "MIT"
     },
-    "node_modules/signal-exit": {
-      "version": "3.0.7",
-      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz",
-      "integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ==",
-      "license": "ISC"
-    },
     "node_modules/split2": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/split2/-/split2-4.2.0.tgz",
@@ -1589,65 +1138,26 @@
         "node": ">= 10.x"
       }
     },
-    "node_modules/string_decoder": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
-      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+    "node_modules/standardwebhooks": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/standardwebhooks/-/standardwebhooks-1.0.0.tgz",
+      "integrity": "sha512-BbHGOQK9olHPMvQNHWul6MYlrRTAOKn03rOe4A8O3CLWhNf4YHBqq2HJKKC+sfqpxiBY52pNeesD6jIiLDz8jg==",
       "license": "MIT",
       "dependencies": {
-        "safe-buffer": "~5.2.0"
+        "@stablelib/base64": "^1.0.0",
+        "fast-sha256": "^1.3.0"
       }
     },
-    "node_modules/string-width": {
-      "version": "4.2.3",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
-      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+    "node_modules/svix": {
+      "version": "1.90.0",
+      "resolved": "https://registry.npmjs.org/svix/-/svix-1.90.0.tgz",
+      "integrity": "sha512-ljkZuyy2+IBEoESkIpn8sLM+sxJHQcPxlZFxU+nVDhltNfUMisMBzWX/UR8SjEnzoI28ZjCzMbmYAPwSTucoMw==",
       "license": "MIT",
       "dependencies": {
-        "emoji-regex": "^8.0.0",
-        "is-fullwidth-code-point": "^3.0.0",
-        "strip-ansi": "^6.0.1"
-      },
-      "engines": {
-        "node": ">=8"
+        "standardwebhooks": "1.0.0",
+        "uuid": "^10.0.0"
       }
     },
-    "node_modules/strip-ansi": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
-      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "license": "MIT",
-      "dependencies": {
-        "ansi-regex": "^5.0.1"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/tar": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/tar/-/tar-6.2.1.tgz",
-      "integrity": "sha512-DZ4yORTwrbTj/7MZYq2w+/ZFdI6OZ/f9SFHR+71gIVUZhOQPHzVCLpvRnPgyaMpfWxxk/4ONva3GQSyNIKRv6A==",
-      "deprecated": "Old versions of tar are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me",
-      "license": "ISC",
-      "dependencies": {
-        "chownr": "^2.0.0",
-        "fs-minipass": "^2.0.0",
-        "minipass": "^5.0.0",
-        "minizlib": "^2.1.1",
-        "mkdirp": "^1.0.3",
-        "yallist": "^4.0.0"
-      },
-      "engines": {
-        "node": ">=10"
-      }
-    },
-    "node_modules/tr46": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
-      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
-      "license": "MIT"
-    },
     "node_modules/tsx": {
       "version": "4.21.0",
       "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.21.0.tgz",
@@ -1689,43 +1199,19 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/util-deprecate": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
-      "license": "MIT"
-    },
-    "node_modules/webidl-conversions": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
-      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
-      "license": "BSD-2-Clause"
-    },
-    "node_modules/whatwg-url": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
-      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+    "node_modules/uuid": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-10.0.0.tgz",
+      "integrity": "sha512-8XkAphELsDnEGrDxUOHB3RGvXz6TeuYSGEZBOjtTtPm2lwhGBjLgOzLHB63IUWfBpNucQjND6d3AOudO+H3RWQ==",
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
       "license": "MIT",
-      "dependencies": {
-        "tr46": "~0.0.3",
-        "webidl-conversions": "^3.0.0"
+      "bin": {
+        "uuid": "dist/bin/uuid"
       }
     },
-    "node_modules/wide-align": {
-      "version": "1.1.5",
-      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz",
-      "integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==",
-      "license": "ISC",
-      "dependencies": {
-        "string-width": "^1.0.2 || 2 || 3 || 4"
-      }
-    },
-    "node_modules/wrappy": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
-      "license": "ISC"
-    },
     "node_modules/xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
@@ -1735,12 +1221,6 @@
         "node": ">=0.4"
       }
     },
-    "node_modules/yallist": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
-      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
-      "license": "ISC"
-    },
     "node_modules/zod": {
       "version": "4.3.6",
       "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",

auth/package.json

@@ -7,18 +7,20 @@
     "dev": "tsx watch src/index.ts",
     "build": "tsc",
     "start": "node dist/index.js",
-    "generate": "npx @better-auth/cli generate"
+    "generate": "npx @better-auth/cli generate",
+    "test": "node --test src/__tests__/*.test.ts"
   },
   "dependencies": {
+    "bcrypt": "^6.0.0",
     "better-auth": "^1.2.0",
     "pg": "^8.13.0",
-    "bcrypt": "^5.1.1"
+    "resend": "^6.11.0"
   },
   "devDependencies": {
+    "@types/bcrypt": "^6.0.0",
     "@types/node": "^22.0.0",
     "@types/pg": "^8.11.0",
-    "@types/bcrypt": "^5.0.2",
     "tsx": "^4.19.0",
     "typescript": "^5.7.0"
   }
-}
+}

auth/src/__tests__/health.test.ts

@@ -0,0 +1,117 @@
+import { describe, it } from 'node:test';
+import { equal } from 'node:assert';
+import http from 'node:http';
+
+describe('Auth health endpoint', () => {
+  const startHealthServer = (poolMock) => {
+    return new Promise((resolve) => {
+      const server = http.createServer(async (req, res) => {
+        if (req.url === '/health' && req.method === 'GET') {
+          try {
+            const client = await poolMock.connect();
+            try {
+              await Promise.race([
+                client.query('SELECT 1'),
+                new Promise((_, reject) => setTimeout(() => reject(new Error('DB timeout')), 2000)),
+              ]);
+            } finally {
+              client.release();
+            }
+            res.writeHead(200, { 'Content-Type': 'application/json' });
+            res.end(JSON.stringify({ status: 'ok', db: 'reachable' }));
+          } catch {
+            res.writeHead(503, { 'Content-Type': 'application/json' });
+            res.end(JSON.stringify({ status: 'error', db: 'unreachable' }));
+          }
+          return;
+        }
+        res.writeHead(404);
+        res.end();
+      });
+      server.listen(0, '0.0.0.0', () => {
+        const addr = server.address();
+        const port = typeof addr === 'object' && addr ? addr.port : 0;
+        resolve({ port, close: () => server.close() });
+      });
+    });
+  };
+
+  const makeRequest = (port) => {
+    return new Promise((resolve) => {
+      const req = http.get(`http://localhost:${port}/health`, (res) => {
+        let body = '';
+        res.on('data', (chunk) => { body += chunk; });
+        res.on('end', () => {
+          resolve({ status: res.statusCode, body });
+        });
+      });
+      req.on('error', () => resolve({ status: 0, body: '' }));
+    });
+  };
+
+  it('returns 200 with db=reachable when pool.connect succeeds', async () => {
+    const mockClient = {
+      query: async () => ({ rows: [{ 1: 1 }] }),
+      release: () => {},
+    };
+    const poolMock = {
+      connect: async () => mockClient,
+    };
+
+    const { port, close } = await startHealthServer(poolMock);
+    const { status, body } = await makeRequest(port);
+    close();
+
+    equal(status, 200);
+    equal(body, '{"status":"ok","db":"reachable"}');
+  });
+
+  it('returns 503 with db=unreachable when pool.connect throws', async () => {
+    const poolMock = {
+      connect: async () => { throw new Error('connection refused'); },
+    };
+
+    const { port, close } = await startHealthServer(poolMock);
+    const { status, body } = await makeRequest(port);
+    close();
+
+    equal(status, 503);
+    equal(body, '{"status":"error","db":"unreachable"}');
+  });
+
+  it('returns 503 with db=unreachable when query times out', async () => {
+    const mockClient = {
+      query: async () => {
+        await new Promise((_, reject) => setTimeout(() => reject(new Error('timeout')), 3000));
+      },
+      release: () => {},
+    };
+    const poolMock = {
+      connect: async () => mockClient,
+    };
+
+    const { port, close } = await startHealthServer(poolMock);
+    const { status, body } = await makeRequest(port);
+    close();
+
+    equal(status, 503);
+    equal(body, '{"status":"error","db":"unreachable"}');
+  });
+
+  it('returns a terminal response for unknown paths (no hang)', async () => {
+    const poolMock = { connect: async () => ({ query: async () => {}, release: () => {} }) };
+    const { port, close } = await startHealthServer(poolMock);
+
+    const result = await new Promise<{ status: number }>((resolve) => {
+      const req = http.get(`http://localhost:${port}/`, (res) => {
+        res.resume();
+        res.on('end', () => resolve({ status: res.statusCode ?? 0 }));
+      });
+      req.on('error', () => resolve({ status: 0 }));
+      setTimeout(() => resolve({ status: -1 }), 1000);
+    });
+    close();
+
+    equal(result.status !== -1, true, 'Unknown path must return a terminal response within 1s');
+  });
+});

auth/src/auth.ts

@@ -1,20 +1,30 @@
 import { betterAuth } from "better-auth";
 import bcrypt from "bcrypt";
 import pg from "pg";
+import { Resend } from "resend";
 
 const { Pool } = pg;
 
-const pool = new Pool({
-  connectionString:
-    process.env.DATABASE_URL ??
-    "postgresql://cartsnitch:cartsnitch@localhost:5432/cartsnitch",
-});
-
 const secret = process.env.BETTER_AUTH_SECRET;
 if (!secret) {
   throw new Error("BETTER_AUTH_SECRET environment variable is required");
 }
 
+const databaseUrl = process.env.DATABASE_URL;
+if (!databaseUrl) {
+  console.warn(
+    "WARNING: DATABASE_URL is not set — using default localhost connection. " +
+    "Set DATABASE_URL for production deployments."
+  );
+}
+
+export const pool = new Pool({
+  connectionString: databaseUrl ?? "postgresql://cartsnitch:cartsnitch@localhost:5432/cartsnitch",
+});
+
+const resend = new Resend(process.env.RESEND_API_KEY);
+const fromEmail = process.env.FROM_EMAIL || "CartSnitch <noreply@cartsnitch.com>";
+
 export const auth = betterAuth({
   database: pool,
   basePath: "/auth",
@@ -27,7 +37,7 @@ export const auth = betterAuth({
     maxPasswordLength: 128,
     password: {
       hash: async (password: string) => {
-        return bcrypt.hash(password, 10);
+        return bcrypt.hash(password, 12);
       },
       verify: async (data: { hash: string; password: string }) => {
         return bcrypt.compare(data.password, data.hash);
@@ -35,7 +45,29 @@ export const auth = betterAuth({
     },
   },
 
+  emailVerification: {
+    sendOnSignUp: true,
+    autoSignInAfterVerification: true,
+    sendVerificationEmail: async ({ user, url }) => {
+      await resend.emails.send({
+        from: fromEmail,
+        to: user.email,
+        subject: "Verify your CartSnitch email",
+        html: `<p>Hi ${user.name || ""},</p><p>Click the link below to verify your email address:</p><p><a href="${url}">Verify Email</a></p><p>This link expires in 1 hour.</p><p>— CartSnitch</p>`,
+      });
+    },
+  },
+
   session: {
+    modelName: "sessions",
+    fields: {
+      userId: "user_id",
+      expiresAt: "expires_at",
+      ipAddress: "ip_address",
+      userAgent: "user_agent",
+      createdAt: "created_at",
+      updatedAt: "updated_at",
+    },
     expiresIn: 60 * 60 * 24 * 7, // 7 days
     updateAge: 60 * 60 * 24, // refresh after 1 day
     cookieCache: {
@@ -86,5 +118,6 @@ export const auth = betterAuth({
     "https://cartsnitch.com",
     "https://cartsnitch.farh.net",
     "https://cartsnitch.dev.farh.net",
+    "https://cartsnitch.uat.farh.net",
   ],
-});
+});

auth/src/index.ts

@@ -1,6 +1,6 @@
 import { createServer } from "node:http";
 import { toNodeHandler } from "better-auth/node";
-import { auth } from "./auth.js";
+import { auth, pool } from "./auth.js";
 
 const port = parseInt(process.env.PORT ?? "3001", 10);
 
@@ -8,13 +8,27 @@ const handler = toNodeHandler(auth);
 
 const server = createServer(async (req, res) => {
   // Health check
-  if (req.url === "/health" && req.method === "GET") {
-    res.writeHead(200, { "Content-Type": "application/json" });
-    res.end(JSON.stringify({ status: "ok" }));
+  if ((req.url === "/health" || req.url === "/auth/health") && req.method === "GET") {
+    try {
+      const client = await pool.connect();
+      try {
+        await Promise.race([
+          client.query("SELECT 1"),
+          new Promise((_, reject) => setTimeout(() => reject(new Error("DB timeout")), 2000)),
+        ]);
+      } finally {
+        client.release();
+      }
+      res.writeHead(200, { "Content-Type": "application/json" });
+      res.end(JSON.stringify({ status: "ok", db: "reachable" }));
+    } catch {
+      res.writeHead(503, { "Content-Type": "application/json" });
+      res.end(JSON.stringify({ status: "error", db: "unreachable" }));
+    }
     return;
   }
 
-  // All /auth/* routes handled by Better-Auth
+  // All other routes handled by Better-Auth (returns 404 for unknown paths)
   await handler(req, res);
 });
 

auth/tsconfig.json

@@ -12,5 +12,5 @@
     "resolveJsonModule": true
   },
   "include": ["src"],
-  "exclude": ["node_modules", "dist"]
+  "exclude": ["node_modules", "dist", "src/__tests__"]
 }

common/alembic/env.py

@@ -14,7 +14,7 @@ if config.config_file_name is not None:
 
 db_url = os.environ.get("CARTSNITCH_DATABASE_URL_SYNC")
 if db_url:
-    config.set_main_option("sqlalchemy.url", db_url)
+    config.set_main_option("sqlalchemy.url", db_url.replace("%", "%%"))
 
 target_metadata = Base.metadata
 

common/alembic/versions/001_add_email_inbound_token.py

@@ -0,0 +1,37 @@
+"""Add email_inbound_token to users.
+
+Revision ID: 001_add_email_inbound_token
+Revises:
+Create Date: 2026-04-02
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+
+from alembic import op
+
+revision: str = "001_add_email_inbound_token"
+down_revision: str | None = None
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.add_column("users", sa.Column("email_inbound_token", sa.String(22), nullable=True))
+    op.create_unique_constraint("uq_users_email_inbound_token", "users", ["email_inbound_token"])
+
+    # Backfill existing users with generated tokens (PostgreSQL)
+    op.execute(
+        "UPDATE users SET email_inbound_token = "
+        "substring(replace(gen_random_uuid()::text, '-', ''), 1, 22) "
+        "WHERE email_inbound_token IS NULL"
+    )
+
+    # Alter to non-nullable
+    op.alter_column("users", "email_inbound_token", nullable=False)
+
+
+def downgrade() -> None:
+    op.drop_constraint("uq_users_email_inbound_token", "users", type_="unique")
+    op.drop_column("users", "email_inbound_token")

common/alembic/versions/002_add_normalized_products_upc_variants_index.py

@@ -0,0 +1,28 @@
+"""Add GIN index on normalized_products.upc_variants for fast JSON containment lookups.
+
+Revision ID: 002_add_normalized_products_upc_variants_index
+Revises: 001_add_email_inbound_token
+Create Date: 2026-04-14
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+
+revision: str = "002_add_normalized_products_upc_variants_index"
+down_revision: str | None = "001_add_email_inbound_token"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.create_index(
+        "ix_normalized_products_upc_variants",
+        "normalized_products",
+        ["upc_variants"],
+        postgresql_using="gin",
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_normalized_products_upc_variants", table_name="normalized_products")

common/src/cartsnitch_common/models/product.py

@@ -3,6 +3,7 @@
 from typing import TYPE_CHECKING
 
 from sqlalchemy import JSON, String
+from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from cartsnitch_common.constants import ProductCategory, SizeUnit
@@ -26,7 +27,9 @@ class NormalizedProduct(UUIDPrimaryKeyMixin, TimestampMixin, Base):
     brand: Mapped[str | None] = mapped_column(String(200))
     size: Mapped[str | None] = mapped_column(String(50))
     size_unit: Mapped[SizeUnit | None] = mapped_column(String(10))
-    upc_variants: Mapped[list[str] | None] = mapped_column(JSON, default=list)
+    upc_variants: Mapped[list[str] | None] = mapped_column(
+        JSON().with_variant(JSONB(), "postgresql"), default=list
+    )
 
     # Relationships
     purchase_items: Mapped[list["PurchaseItem"]] = relationship(back_populates="normalized_product")

common/src/cartsnitch_common/models/user.py

@@ -1,10 +1,11 @@
 """User and UserStoreAccount models."""
 
+import secrets
 import uuid
 from datetime import datetime
 from typing import TYPE_CHECKING
 
-from sqlalchemy import JSON, Boolean, DateTime, ForeignKey, String, Text, UniqueConstraint
+from sqlalchemy import JSON, Boolean, DateTime, ForeignKey, String, Text, UniqueConstraint, text
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from cartsnitch_common.constants import AccountStatus
@@ -21,6 +22,15 @@ class User(UUIDPrimaryKeyMixin, TimestampMixin, Base):
     __tablename__ = "users"
 
     email: Mapped[str] = mapped_column(String(255), nullable=False, unique=True)
+    email_inbound_token: Mapped[str] = mapped_column(
+        String(22),
+        nullable=False,
+        unique=True,
+        default=lambda: secrets.token_urlsafe(16),
+        server_default=text(
+            "replace(replace(trim(trailing '=' from encode(gen_random_bytes(16), 'base64')), '+', '-'), '/', '_')"
+        ),
+    )
     hashed_password: Mapped[str | None] = mapped_column(String(255), nullable=True)
     display_name: Mapped[str | None] = mapped_column(String(100))
     email_verified: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default="false")

common/src/cartsnitch_common/schemas/user.py

@@ -20,6 +20,7 @@ class UserRead(BaseModel):
     id: uuid.UUID
     email: str
     display_name: str | None
+    email_inbound_token: str
     created_at: datetime
     updated_at: datetime
 

common/tests/test_models.py

@@ -147,6 +147,40 @@ class TestStoreLocationModel:
         assert loc.lat == pytest.approx(42.2808)
 
 
+class TestUserModel:
+    def test_email_inbound_token_auto_populated(self, session):
+        user = User(
+            id=uuid.uuid4(),
+            email="token_test@example.com",
+            hashed_password="hashed",
+            created_at=datetime.now(UTC),
+            updated_at=datetime.now(UTC),
+        )
+        session.add(user)
+        session.commit()
+        assert user.email_inbound_token is not None
+        assert len(user.email_inbound_token) == 22
+
+    def test_email_inbound_token_unique(self, session):
+        user1 = User(
+            id=uuid.uuid4(),
+            email="user1@example.com",
+            hashed_password="hashed",
+            created_at=datetime.now(UTC),
+            updated_at=datetime.now(UTC),
+        )
+        user2 = User(
+            id=uuid.uuid4(),
+            email="user2@example.com",
+            hashed_password="hashed",
+            created_at=datetime.now(UTC),
+            updated_at=datetime.now(UTC),
+        )
+        session.add_all([user1, user2])
+        session.commit()
+        assert user1.email_inbound_token != user2.email_inbound_token
+
+
 class TestUserStoreAccountModel:
     def test_account_status_enum(self, session):
         user = User(

docs/uat-receipt-submission.md

@@ -0,0 +1,244 @@
+# UAT Receipt Submission Path
+
+**Issue:** [CAR-812](/CAR/issues/CAR-812)
+**Author:** Barcode Betty
+**Date:** 2026-05-04
+
+---
+
+## Overview
+
+The UAT environment supports receipt submission via **inbound email**. This is the only supported submission method in UAT — there is no public REST API surface for receipt ingestion.
+
+---
+
+## How It Works
+
+### Architecture
+
+```
+User composes email
+    ↓
+Email sent to <user_token>@cartsnitch.<env>.farh.net
+    ↓
+Mailgun webhook receives the email
+    ↓
+Email job enqueued to DragonflyDB stream: email:receipts
+    ↓
+email-worker (ReceiptWitness) consumes the job
+    ↓
+Worker resolves user via email_inbound_token lookup in DB
+    ↓
+Retailer detected from email content (meijer / kroger / target)
+    ↓
+Email parsed into Purchase + PurchaseItem records
+    ↓
+receipt.ingested event published to Redis
+    ↓
+MatchResult created with method=upc, confidence=1.0 for known UPCs
+```
+
+### Key Components
+
+| Component | Location | Role |
+|-----------|----------|------|
+| `users.email_inbound_token` | DB (migration `001_add_email_inbound_token`) | 22-char unique token per user; used as email routing identifier |
+| `email:receipts` stream | DragonflyDB | Queue holding pending email jobs |
+| `email-worker` | `receiptwitness/src/receiptwitness/worker/email_worker.py` | Async worker consuming the stream |
+| `BaseEmailParser` | `receiptwitness/src/receiptwitness/parsers/email/base.py` | Abstract parser; subclasses for meijer/kroger/target |
+| Retailer detectors | `receiptwitness/src/receiptwitness/parsers/email/detector.py` | Sifts sender/subject to pick the right parser |
+
+### Email Address Format
+
+Each user is assigned a unique inbound token. The receipt submission email address is shown in **Settings → Receipt Email** on the UI:
+
+**Address:** `receipts+<email_inbound_token>@receipts.cartsnitch.com`
+
+To find a user's token in the UAT database (requires `kubectl` access to `cartsnitch-uat`):
+
+```bash
+kubectl exec -n cartsnitch-uat deployment/cartsnitch-api -- \\
+  python -c "from cartsnitch_common.database import get_sync_session; \\
+  from cartsnitch_common.models.user import User; \\
+  from sqlalchemy import select; \\
+  s = get_sync_session('postgresql://cartsnitch:cartsnitch@cartsnitch-pg-rw:5432/cartsnitch'); \\
+  u = s.execute(select(User).where(User.email=='dottie@example.com')).scalar_one(); \\
+  print(u.email_inbound_token)"
+```
+
+---
+
+## Submitting a Test Receipt (Step-by-Step)
+
+### Prerequisites
+
+- A test user account in UAT with a known `email_inbound_token`
+- A sample receipt email with a **known UPC** from the seeded `normalized_products` table
+
+### Steps
+
+1. **Obtain the test user's inbound token.**
+   Use the UAT Settings → Receipt Email page in the UI to see the full address `receipts+<token>@receipts.cartsnitch.com`, or query the DB directly (see above).
+
+2. **Compose the email.**
+   Send to: the address shown in Settings → Receipt Email
+   Subject: anything
+   Body: plain-text or HTML receipt content
+
+3. **Expected behavior after email is processed:**
+   - A `Receipt` row is created in `purchases`
+   - `PurchaseItem` rows are created with `upc` matching the seeded product UPC
+   - A `MatchResult` is created with `method='upc'` and `confidence=1.0`
+
+---
+
+## Known UPC for Dottie (from UAT seed)
+
+> **NOTE:** `kubectl` is not available in this execution environment. The UAT seed and DB query could not be executed. The sample receipt below uses a plausible placeholder UPC. Before Dottie runs the regression:
+> 1. Run `bash scripts/seed-env.sh uat` from a machine with UAT kubecontext
+> 2. Query: `SELECT id, canonical_name, upc_variants->0->>'upc' AS sample_upc FROM normalized_products WHERE jsonb_array_length(upc_variants) > 0 LIMIT 1;`
+> 3. Replace the placeholder values below with the real captured row
+
+- `id`: **TBD — run seed and query UAT DB**
+- `name`: **TBD — run seed and query UAT DB**
+- `sample UPC`: **TBD — run seed and query UAT DB**
+
+### Meijer Sample Receipt (plain text)
+
+```
+Meijer
+===================================
+Purchase Date: 03/15/2026
+Store: Meijer #127 - Ann Arbor, MI
+-----------------------------------
+ 1 x Organic Whole Milk 1gal      $4.99
+ 1 x Whole Wheat Bread             $3.29
+ 1 x Bananas (2 lb)                $0.67
+ 1 x Chicken Breast (3 lb)        $12.47
+ 1 x Cheddar Cheese Block 8oz      $5.99
+-----------------------------------
+Subtotal:                        $27.41
+Tax:                              $1.93
+Total:                           $29.34
+===================================
+THANK YOU FOR SHOPPING MEIJER
+===================================
+```
+Meijer
+===================================
+Purchase Date: 03/15/2026
+Store: Meijer #127 - Ann Arbor, MI
+-----------------------------------
+ 1 x Organic Whole Milk 1gal      $4.99
+ 1 x Whole Wheat Bread            $3.29
+ 1 x Bananas (2 lb)               $0.67
+ 1 x Chicken Breast (3 lb)       $12.47
+ 1 x Cheddar Cheese Block 8oz     $5.99
+-----------------------------------
+Subtotal:                       $27.41
+Tax:                             $1.93
+Total:                          $29.34
+===================================
+THANK YOU FOR SHOPPING MEIJER
+===================================
+```
+
+> **Note:** The `email-worker` parses the email body and extracts line items by retailer. The exact format and field mapping depends on the retailer parser. For Meijer, the parser looks for item lines matching `(\d+) x (.+?)\s+\$([\d.]+)`. UPCs in the `upc_variants` JSONB of seeded products will be matched during the normalization step.
+
+### Kroger Sample Receipt (plain text)
+
+```
+KROGER
+===================================
+Purchase Date: 03/15/2026
+Store: KROGER #412 - Ann Arbor MI
+-----------------------------------
+ 1 Organic Whole Milk 1gal        $5.29
+ 1 Whole Wheat Bread              $3.49
+ 1 Bananas (2 lb)                 $0.69
+ 1 Chicken Breast (3 lb)         $11.99
+ 1 Sharp Cheddar Cheese 8oz       $4.99
+-----------------------------------
+Subtotal:                       $26.45
+Tax:                             $1.85
+Total:                          $28.30
+===================================
+```
+
+### Target Sample Receipt (plain text)
+
+```
+TARGET
+===================================
+03/15/2026  14:32
+Store: 0874 Ann Arbor, MI
+===================================
+ 1  Organic Whole Milk 1G         $5.49
+ 1  Whole Wheat Bread             $3.29
+ 1  Bananas LB 2                  $0.68
+ 1  Chicken Breast 3#             $12.99
+ 1  Cheddar Cheese 8OZ           $5.79
+-----------------------------------
+Subtotal:                       $28.24
+Tax (6%):                        $1.69
+Total:                          $29.93
+===================================
+```
+
+---
+
+## Troubleshooting
+
+### Email not processed
+
+1. Check the `email:receipts` stream has messages:
+   ```bash
+   kubectl exec -n cartsnitch-uat deploy/email-worker -- python -c \\
+     "import asyncio; from receiptwitness.queue.email import get_redis; \\
+     async def chk(): c = await get_redis(); info = await c.xinfo_stream('email:receipts'); print(info); \\
+     asyncio.run(chk())"
+   ```
+
+2. Check `email-worker` logs for retailer detection failures:
+   ```bash
+   kubectl logs -n cartsnitch-uat deploy/email-worker -f
+   ```
+
+3. Verify the token resolves to a user in the DB:
+   ```bash
+   kubectl exec -n cartsnitch-uat deploy/cartsnitch-api -- \\
+     python -c "from cartsnitch_common.database import get_sync_session; \\
+     from cartsnitch_common.models.user import User; \\
+     from sqlalchemy import select; \\
+     s = get_sync_session('postgresql://...'); \\
+     r = s.execute(select(User.email_inbound_token).limit(5)).all(); \\
+     print(r)"
+   ```
+
+### No MatchResult created
+
+The normalization pipeline requires a `normalized_product` row with the submitted UPC in `upc_variants`. If the seed was run, the product should be found. Check the `match_results` table after submission:
+
+```sql
+SELECT mr.*, np.canonical_name
+FROM match_results mr
+JOIN normalized_products np ON np.id = mr.normalized_product_id
+WHERE mr.match_method = 'upc'
+ORDER BY mr.created_at DESC
+LIMIT 10;
+```
+
+---
+
+## Related Files
+
+| File | Role |
+|------|------|
+| `common/alembic/versions/001_add_email_inbound_token.py` | Adds `email_inbound_token` column |
+| `receiptwitness/src/receiptwitness/worker/email_worker.py` | Consumes email jobs from stream |
+| `receiptwitness/src/receiptwitness/queue/email.py` | DragonflyDB stream consumer group |
+| `receiptwitness/src/receiptwitness/parsers/email/detector.py` | Retailer detection |
+| `receiptwitness/src/receiptwitness/parsers/email/meijer.py` | Meijer email parser |
+| `receiptwitness/src/receiptwitness/parsers/email/kroger.py` | Kroger email parser |
+| `receiptwitness/src/receiptwitness/parsers/email/target.py` | Target email parser |
+| `docs/uat-runbook.md` | UAT runbook (defect classification, entry/exit criteria) |

e2e/fixtures.ts

@@ -0,0 +1,100 @@
+import { test as base, expect, type Page } from "@playwright/test";
+import AxeBuilder from "@axe-core/playwright";
+
+export const test = base.extend<{ axeCheck: void }>({
+  axeCheck: [async ({ page }, use) => {
+    await use();
+    const results = await new AxeBuilder({ page }).analyze();
+    expect(results.violations).toEqual([]);
+  }, { auto: true }],
+});
+
+export { expect } from "@playwright/test";
+
+const MOCK_USER_ID = "mock_user_123";
+const MOCK_SESSION_ID = "mock_session_456";
+
+async function mockAuthRoutes(page: Page, authenticated = false) {
+  await page.route(/.*\/auth\/sign-up\/email.*/, async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        token: null,
+        user: {
+          id: MOCK_USER_ID,
+          email: "mock@cartsnitch.test",
+          name: "Mock User",
+          emailVerified: true,
+          createdAt: new Date().toISOString(),
+          updatedAt: new Date().toISOString(),
+        },
+      }),
+    });
+  });
+
+  await page.route(/.*\/auth\/sign-in\/email.*/, async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        redirect: false,
+        token: "mock_token_123",
+        user: {
+          id: MOCK_USER_ID,
+          email: "mock@cartsnitch.test",
+          name: "Mock User",
+          emailVerified: true,
+          createdAt: new Date().toISOString(),
+          updatedAt: new Date().toISOString(),
+        },
+      }),
+    });
+  });
+
+  await page.route(/.*\/auth\/get-session.*/, async (route) => {
+    if (authenticated) {
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify({
+          session: {
+            id: MOCK_SESSION_ID,
+            expiresAt: new Date(Date.now() + 7 * 24 * 60 * 60 * 1000).toISOString(),
+            createdAt: new Date().toISOString(),
+            updatedAt: new Date().toISOString(),
+            ipAddress: null,
+            userAgent: null,
+          },
+          user: {
+            id: MOCK_USER_ID,
+            email: "mock@cartsnitch.test",
+            name: "Mock User",
+            emailVerified: true,
+            createdAt: new Date().toISOString(),
+            updatedAt: new Date().toISOString(),
+          },
+        }),
+      });
+    } else {
+      await route.fulfill({
+        status: 401,
+        contentType: "application/json",
+        body: JSON.stringify({ error: "Unauthorized" }),
+      });
+    }
+  });
+}
+
+export async function mockSessionDelayed(page: Page, delayMs = 3000) {
+  await page.route(/.*\/auth\/get-session.*/, async (route) => {
+    await new Promise((r) => setTimeout(r, delayMs));
+    await route.fulfill({
+      status: 401,
+      contentType: "application/json",
+      body: JSON.stringify({ error: "Unauthorized" }),
+    });
+  });
+}
+
+export { mockAuthRoutes };

e2e/journeys/j1-registration-login.spec.ts

@@ -0,0 +1,52 @@
+import { test, expect } from '@playwright/test';
+import { mockAuthRoutes } from '../fixtures';
+
+const uniqueEmail = () => `betty+e2e-${Date.now()}@cartsnitch.test`;
+
+test.describe('J1: Registration and Login', () => {
+  test('shows success message after registration', async ({ page }) => {
+    await mockAuthRoutes(page, false);
+    await page.goto('/register');
+    await page.fill('[placeholder="Full Name"]', 'Betty Tester');
+    await page.fill('[placeholder="Email"]', uniqueEmail());
+    await page.fill('[placeholder="Password (min. 8 characters)"]', 'TestPass123!');
+    await page.click('button[type="submit"]');
+
+    // Registration now shows "Account created! Please sign in." message
+    await expect(page.locator('.bg-red-50')).toContainText('Account created! Please sign in.');
+  });
+
+  test('shows validation error when registration fields are empty', async ({ page }) => {
+    await page.goto('/register');
+    await page.click('button[type="submit"]');
+
+    await expect(page.locator('.bg-red-50')).toContainText('Please fill in all fields');
+  });
+
+  test('can navigate from register to login', async ({ page }) => {
+    await page.goto('/register');
+    await page.getByRole('link', { name: /sign in/i }).click();
+
+    await expect(page).toHaveURL(/\/login/);
+    await expect(page.getByRole('heading', { name: /cartsnitch/i })).toBeVisible();
+  });
+
+  test('can sign in with valid credentials', async ({ page }) => {
+    await mockAuthRoutes(page, true);
+    const email = uniqueEmail();
+    await page.goto('/register');
+    await page.fill('[placeholder="Full Name"]', 'Login Betty');
+    await page.fill('[placeholder="Email"]', email);
+    await page.fill('[placeholder="Password (min. 8 characters)"]', 'TestPass123!');
+    await page.click('button[type="submit"]');
+    await expect(page.locator('.bg-red-50')).toContainText('Account created! Please sign in.');
+
+    await page.goto('/login');
+    await page.fill('[placeholder="Email"]', 'test@cartsnitch.test');
+    await page.fill('[placeholder="Password"]', 'TestPass123!');
+    await page.click('button[type="submit"]');
+
+    await expect(page).toHaveURL('http://localhost:5173/');
+  });
+
+});

e2e/journeys/j8-unauth-access.spec.ts

@@ -0,0 +1,43 @@
+import { test, expect } from '@playwright/test';
+import { mockAuthRoutes, mockSessionDelayed } from '../fixtures';
+
+test.describe('J8: Unauthenticated Access', () => {
+  test('redirects /dashboard (/) to /login when not authenticated', async ({ page }) => {
+    await mockAuthRoutes(page, false);
+    await page.goto('/');
+
+    await expect(page).toHaveURL(/\/login/);
+    await expect(page.getByRole('heading', { name: /cartsnitch/i })).toBeVisible();
+  });
+
+  test('redirects /purchases to /login when not authenticated', async ({ page }) => {
+    await mockAuthRoutes(page, false);
+    await page.goto('/purchases');
+
+    await expect(page).toHaveURL(/\/login/);
+    await expect(page.getByRole('heading', { name: /cartsnitch/i })).toBeVisible();
+  });
+
+  test('redirects /products to /login when not authenticated', async ({ page }) => {
+    await mockAuthRoutes(page, false);
+    await page.goto('/products');
+
+    await expect(page).toHaveURL(/\/login/);
+    await expect(page.getByRole('heading', { name: /cartsnitch/i })).toBeVisible();
+  });
+
+  test('redirects /coupons to /login when not authenticated', async ({ page }) => {
+    await mockAuthRoutes(page, false);
+    await page.goto('/coupons');
+
+    await expect(page).toHaveURL(/\/login/);
+    await expect(page.getByRole('heading', { name: /cartsnitch/i })).toBeVisible();
+  });
+
+  test('shows loading spinner while auth session is pending', async ({ page }) => {
+    await mockSessionDelayed(page, 3000);
+    await page.goto('/purchases');
+    await expect(page.locator('.animate-spin')).toBeVisible({ timeout: 2000 });
+    await expect(page).toHaveURL(/\/login/, { timeout: 10_000 });
+  });
+});

e2e/smoke.spec.ts

@@ -1,6 +1,8 @@
-import { test, expect } from '@playwright/test';
+import { test, expect, mockAuthRoutes } from './fixtures';
 
 test('app loads', async ({ page }) => {
+  await mockAuthRoutes(page, false);
   await page.goto('/');
-  await expect(page).toHaveTitle(/CartSnitch/);
+  await expect(page).toHaveURL(/\/login/);
+  await expect(page.getByRole('heading', { name: /CartSnitch/i })).toBeVisible();
 });

lighthouserc.json

@@ -0,0 +1,24 @@
+{
+  "ci": {
+    "collect": {
+      "staticDistDir": "./dist",
+      "url": ["http://localhost:4173/"],
+      "numberOfRuns": 1,
+      "settings": {
+        "chromeFlags": ["--headless=new", "--no-sandbox", "--disable-gpu", "--disable-dev-shm-usage"],
+        "skipAudits": ["bf-cache"],
+        "disableFullPageScreenshot": true
+      }
+    },
+    "assert": {
+      "assertions": {
+        "categories:performance": ["warn", { "minScore": 0.7 }],
+        "categories:accessibility": ["error", { "minScore": 0.9 }],
+        "categories:best-practices": ["warn", { "minScore": 0.8 }]
+      }
+    },
+    "upload": {
+      "target": "temporary-public-storage"
+    }
+  }
+}

nginx.conf

@@ -9,6 +9,12 @@ server {
     gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
     gzip_min_length 256;
 
+    # Security headers
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header X-Content-Type-Options "nosniff" always;
+    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+    add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self'; connect-src 'self' https://*.cartsnitch.com https://*.farh.net; frame-ancestors 'self'" always;
+
     # Health endpoint for K8s probes
     location /health {
         access_log off;

package.json

@@ -15,6 +15,7 @@
   "dependencies": {
     "@tanstack/react-query": "^5.0.0",
     "better-auth": "^1.2.0",
+    "picomatch": "4.0.4",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-router-dom": "^7.0.0",
@@ -22,26 +23,36 @@
     "zustand": "^5.0.0"
   },
   "devDependencies": {
+    "@axe-core/playwright": "^4.10.0",
     "@eslint/js": "^9.39.4",
+    "@playwright/test": "^1.58.2",
     "@tailwindcss/vite": "^4.0.0",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.3.2",
     "@types/node": "^24.12.0",
     "@types/react": "^18.3.28",
     "@types/react-dom": "^18.3.7",
-    "@vitejs/plugin-react": "^4.5.2",
+    "@vitejs/plugin-react": "^4.7.0",
     "eslint": "^9.39.4",
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.5.2",
-    "@playwright/test": "^1.49.0",
     "globals": "^17.4.0",
     "jsdom": "^25.0.1",
     "msw": "^2.12.14",
+    "playwright": "^1.58.2",
     "tailwindcss": "^4.0.0",
     "typescript": "^5.7.3",
     "typescript-eslint": "^8.56.1",
-    "vite": "^6.3.5",
+    "vite": "^6.4.2",
     "vite-plugin-pwa": "^0.21.2",
     "vitest": "^3.2.4"
+  },
+  "overrides": {
+    "@rollup/pluginutils": "5.3.0",
+    "flatted": "^3.4.2",
+    "serialize-javascript": "7.0.5",
+    "brace-expansion": ">=1.1.13",
+    "lodash": ">=4.17.24",
+    "minimatch": "^10.2.4"
   }
 }

public/robots.txt

@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://cartsnitch.com/sitemap.xml

receiptwitness/.gitea/workflows/ci.yml

@@ -0,0 +1,626 @@
+name: CI
+
+on:
+  push:
+    branches: [main, dev, uat]
+  pull_request:
+    branches: [main, dev, uat]
+
+concurrency:
+  group: ci-{gitea.ref}
+  cancel-in-progress: true
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: cartsnitch/cartsnitch
+  RECEIPTWITNESS_IMAGE_NAME: cartsnitch/receiptwitness
+  API_IMAGE_NAME: cartsnitch/api
+  AUTH_IMAGE_NAME: cartsnitch/auth
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+      - run: npm ci
+      - name: ESLint
+        run: npx eslint .
+      - name: Type check
+        run: npx tsc --noEmit
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+      - run: npm ci
+      - name: Run tests
+        run: npx vitest run
+
+  audit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+      - run: npm ci
+      - name: Check for vulnerabilities
+        run: npm audit --audit-level=high
+
+  e2e:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+      - run: npm ci
+      - run: npx playwright install --with-deps chromium
+      - run: npx playwright test
+
+  lighthouse:
+    runs-on: ubuntu-latest
+    needs: [test]
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+      - run: npm ci
+      - run: npm run build
+      - name: Install Chromium for Lighthouse
+        run: |
+          npm install -g playwright
+          npx playwright install --with-deps chromium
+      - name: Start preview server
+        run: |
+          npm run preview &
+          npx wait-on http://localhost:4173/ --timeout 30000
+      - name: Run Lighthouse CI
+        run: |
+          CHROME_PATH=$(find /home/runner/.cache/ms-playwright -name chrome -type f 2>/dev/null | head -1)
+          npm install -g @lhci/cli
+          CHROME_PATH="$CHROME_PATH" lhci autorun --chrome-flags="--headless=new --no-sandbox --disable-gpu --disable-dev-shm-usage"
+
+  build-and-push:
+    runs-on: ubuntu-latest
+    if: gitea.event == 'push'
+    needs: [lint, test, e2e]
+    outputs:
+      calver_tag: {_calver_version_}
+      sha_tag: sha-{gitea.sha}
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate CalVer tag
+        id: calver
+        if: gitea.event == 'push' && gitea.ref == 'refs/heads/main'
+        run: |
+          DATE_TAG=$(date -u +%Y.%m.%d)
+          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
+          if [ -z "$EXISTING" ]; then
+            VERSION="$DATE_TAG"
+          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then
+            VERSION="${DATE_TAG}.2"
+          else
+            BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//")
+            VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"
+          fi
+          echo "_calver_version_=$VERSION" >> "$GITHUB_OUTPUT"
+          echo "CalVer tag: $VERSION"
+
+      - name: Log in to Docker Hub
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/login-action@v3
+        with:
+          username: '{'{ secrets.DOCKERHUB_USERNAME }'}'
+          password: '{'{ secrets.DOCKERHUB_TOKEN }'}'
+
+      - name: Log in to GHCR
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: https://github.com/docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=sha-,format=long
+            type=raw,value=${{ steps.calver.outputs.calver_tag }},enable=${{ gitea.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ gitea.ref == 'refs/heads/main' }}
+
+      - name: Build Docker image
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          context: .
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          target: prod
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Scan frontend image for vulnerabilities
+        uses: https://github.com/anchore/scan-action@v5
+        id: scan
+        env:
+          GRYPE_CONFIG: .grype.yaml
+        with:
+          image: "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ gitea.sha }}"
+          fail-build: true
+          severity-cutoff: high
+          only-fixed: "true"
+          output-format: sarif
+
+
+
+      - name: Push Docker image
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          target: prod
+          cache-from: type=gha
+
+      - name: Create git tag
+        if: gitea.event == 'push' && gitea.ref == 'refs/heads/main'
+        run: |
+          git tag "v${{ steps.calver.outputs.calver_tag }}"
+          git push origin "v${{ steps.calver.outputs.calver_tag }}"
+
+  build-and-push-receiptwitness:
+    runs-on: ubuntu-latest
+    if: gitea.event == 'push'
+    needs: [lint, test]
+    outputs:
+      calver_tag: {calver.outputs.calver_tag}
+      sha_tag: sha-{gitea.sha}
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate CalVer tag
+        id: calver
+        if: gitea.event == 'push' && gitea.ref == 'refs/heads/main'
+        run: |
+          DATE_TAG=$(date -u +%Y.%m.%d)
+          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
+          if [ -z "$EXISTING" ]; then VERSION="$DATE_TAG"
+          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then VERSION="${DATE_TAG}.2"
+          else BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//"); VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"; fi
+          echo "calver_tag=$VERSION" >> "$GITHUB_OUTPUT"
+
+      - name: Log in to Docker Hub
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/login-action@v3
+        with:
+          username: '{'{ secrets.DOCKERHUB_USERNAME }'}'
+          password: '{'{ secrets.DOCKERHUB_TOKEN }'}'
+
+      - name: Log in to GHCR
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: https://github.com/docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.RECEIPTWITNESS_IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=sha-,format=long
+            type=raw,value=${{ steps.calver.outputs.calver_tag }},enable=${{ gitea.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ gitea.ref == 'refs/heads/main' }}
+
+      - name: Build Docker image
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ gitea.run_id }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Scan receiptwitness image for vulnerabilities
+        uses: https://github.com/anchore/scan-action@v5
+        id: scan
+        env:
+          GRYPE_CONFIG: .grype.yaml
+        with:
+          image: "${{ env.REGISTRY }}/${{ env.RECEIPTWITNESS_IMAGE_NAME }}:sha-${{ gitea.sha }}"
+          fail-build: true
+          severity-cutoff: high
+          only-fixed: "true"
+          output-format: sarif
+
+
+
+      - name: Push Docker image
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ gitea.run_id }}
+          cache-from: type=gha
+
+  build-and-push-api:
+    runs-on: ubuntu-latest
+    if: gitea.event == 'push'
+    needs: [lint, test]
+    outputs:
+      calver_tag: {calver.outputs.calver_tag}
+      sha_tag: sha-{gitea.sha}
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate CalVer tag
+        id: calver
+        if: gitea.event == 'push' && gitea.ref == 'refs/heads/main'
+        run: |
+          DATE_TAG=$(date -u +%Y.%m.%d)
+          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
+          if [ -z "$EXISTING" ]; then VERSION="$DATE_TAG"
+          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then VERSION="${DATE_TAG}.2"
+          else BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//"); VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"; fi
+          echo "calver_tag=$VERSION" >> "$GITHUB_OUTPUT"
+
+      - name: Log in to Docker Hub
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/login-action@v3
+        with:
+          username: '{'{ secrets.DOCKERHUB_USERNAME }'}'
+          password: '{'{ secrets.DOCKERHUB_TOKEN }'}'
+
+      - name: Log in to GHCR
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (API)
+        id: meta
+        uses: https://github.com/docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.API_IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=sha-,format=long
+            type=raw,value=${{ steps.calver.outputs.calver_tag }},enable=${{ gitea.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ gitea.ref == 'refs/heads/main' }}
+
+      - name: Build Docker image
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          context: ./api
+          file: ./api/Dockerfile
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ gitea.run_id }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Scan api image for vulnerabilities
+        uses: https://github.com/anchore/scan-action@v5
+        id: scan
+        env:
+          GRYPE_CONFIG: .grype.yaml
+        with:
+          image: "${{ env.REGISTRY }}/${{ env.API_IMAGE_NAME }}:sha-${{ gitea.sha }}"
+          fail-build: true
+          severity-cutoff: high
+          only-fixed: "true"
+          output-format: sarif
+
+
+
+      - name: Push Docker image
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          context: ./api
+          file: ./api/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ gitea.run_id }}
+          cache-from: type=gha
+
+  build-and-push-auth:
+    runs-on: ubuntu-latest
+    if: gitea.event == 'push'
+    needs: [lint, test]
+    outputs:
+      calver_tag: {calver.outputs.calver_tag}
+      sha_tag: sha-{gitea.sha}
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate CalVer tag
+        id: calver
+        if: gitea.event == 'push' && gitea.ref == 'refs/heads/main'
+        run: |
+          DATE_TAG=$(date -u +%Y.%m.%d)
+          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
+          if [ -z "$EXISTING" ]; then VERSION="$DATE_TAG"
+          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then VERSION="${DATE_TAG}.2"
+          else BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//"); VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"; fi
+          echo "calver_tag=$VERSION" >> "$GITHUB_OUTPUT"
+
+      - name: Log in to Docker Hub
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/login-action@v3
+        with:
+          username: '{'{ secrets.DOCKERHUB_USERNAME }'}'
+          password: '{'{ secrets.DOCKERHUB_TOKEN }'}'
+
+      - name: Log in to GHCR
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (auth)
+        id: meta
+        uses: https://github.com/docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.AUTH_IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=sha-,format=long
+            type=raw,value=${{ steps.calver.outputs.calver_tag }},enable=${{ gitea.ref == 'refs/heads/main' }}
+            type=raw,value=latest,enable=${{ gitea.ref == 'refs/heads/main' }}
+
+      - name: Build Docker image
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          context: ./auth
+          file: ./auth/Dockerfile
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ gitea.run_id }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Scan auth image for vulnerabilities
+        uses: https://github.com/anchore/scan-action@v5
+        id: scan
+        env:
+          GRYPE_CONFIG: .grype.yaml
+        with:
+          image: "${{ env.REGISTRY }}/${{ env.AUTH_IMAGE_NAME }}:sha-${{ gitea.sha }}"
+          fail-build: true
+          severity-cutoff: high
+          only-fixed: "true"
+          output-format: sarif
+
+
+
+      - name: Push Docker image
+        if: gitea.event == 'push'
+        uses: https://github.com/docker/build-push-action@v6
+        with:
+          context: ./auth
+          file: ./auth/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            APT_CACHE_BUST=${{ gitea.run_id }}
+          cache-from: type=gha
+
+  deploy-dev:
+    runs-on: ubuntu-latest
+    needs: [build-and-push, build-and-push-receiptwitness, build-and-push-api, build-and-push-auth]
+    if: gitea.event == 'push' && (gitea.ref == 'refs/heads/dev' || gitea.ref == 'refs/heads/main')
+    steps:
+      - name: Checkout infra repo
+        uses: https://github.com/actions/checkout@v4
+        with:
+          repository: cartsnitch/infra
+          token: ${{ secrets.GITEA_TOKEN }}
+          ref: main
+          path: infra
+
+      - name: Install kubectl
+        uses: azure/setup-kubectl@v4
+
+      - name: Install kustomize
+        uses: imranismail/setup-kustomize@v2
+
+      - name: Determine image tag for frontend
+        id: frontend_tag
+        run: |
+          if [ "${{ gitea.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update frontend image tag
+        run: |
+          cd infra/apps/overlays/dev
+          kustomize edit set image ghcr.io/cartsnitch/cartsnitch:${{ steps.frontend_tag.outputs.tag }}
+
+      - name: Determine image tag for receiptwitness
+        id: receiptwitness_tag
+        run: |
+          if [ "${{ gitea.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-receiptwitness.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-receiptwitness.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update receiptwitness image tag
+        run: |
+          cd infra/apps/overlays/dev
+          kustomize edit set image ghcr.io/cartsnitch/receiptwitness:${{ steps.receiptwitness_tag.outputs.tag }}
+
+      - name: Determine image tag for api
+        id: api_tag
+        run: |
+          if [ "${{ gitea.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-api.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-api.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update api image tag
+        run: |
+          cd infra/apps/overlays/dev
+          kustomize edit set image ghcr.io/cartsnitch/api:${{ steps.api_tag.outputs.tag }}
+
+      - name: Determine image tag for auth
+        id: auth_tag
+        run: |
+          if [ "${{ gitea.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-auth.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-auth.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update auth image tag
+        run: |
+          cd infra/apps/overlays/dev
+          kustomize edit set image ghcr.io/cartsnitch/auth:${{ steps.auth_tag.outputs.tag }}
+
+      - name: Commit and push to infra
+        run: |
+          cd infra
+          git config user.name "cartsnitch-ci[bot]"
+          git config user.email "cartsnitch-ci[bot]@users.noreply.github.com"
+          git add apps/overlays/dev/kustomization.yaml
+          git diff --cached --quiet && echo "No image changes to deploy" && exit 0
+          git commit -m "ci(dev): update cartsnitch, receiptwitness, api, and auth images"
+          git pull --rebase origin main
+          git push origin main
+
+  deploy-uat:
+    runs-on: ubuntu-latest
+    needs: [build-and-push, build-and-push-receiptwitness, build-and-push-api, build-and-push-auth]
+    if: gitea.event == 'push' && (gitea.ref == 'refs/heads/uat' || gitea.ref == 'refs/heads/main')
+    steps:
+      - name: Checkout infra repo
+        uses: https://github.com/actions/checkout@v4
+        with:
+          repository: cartsnitch/infra
+          token: ${{ secrets.GITEA_TOKEN }}
+          ref: main
+          path: infra
+
+      - name: Install kubectl
+        uses: azure/setup-kubectl@v4
+
+      - name: Install kustomize
+        uses: imranismail/setup-kustomize@v2
+
+      - name: Determine image tag for frontend
+        id: frontend_tag
+        run: |
+          if [ "${{ gitea.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update frontend image tag
+        run: |
+          cd infra/apps/overlays/uat
+          kustomize edit set image ghcr.io/cartsnitch/cartsnitch:${{ steps.frontend_tag.outputs.tag }}
+
+      - name: Determine image tag for receiptwitness
+        id: receiptwitness_tag
+        run: |
+          if [ "${{ gitea.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-receiptwitness.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-receiptwitness.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update receiptwitness image tag
+        run: |
+          cd infra/apps/overlays/uat
+          kustomize edit set image ghcr.io/cartsnitch/receiptwitness:${{ steps.receiptwitness_tag.outputs.tag }}
+
+      - name: Determine image tag for api
+        id: api_tag
+        run: |
+          if [ "${{ gitea.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-api.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-api.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update api image tag
+        run: |
+          cd infra/apps/overlays/uat
+          kustomize edit set image ghcr.io/cartsnitch/api:${{ steps.api_tag.outputs.tag }}
+
+      - name: Determine image tag for auth
+        id: auth_tag
+        run: |
+          if [ "${{ gitea.ref }}" == "refs/heads/main" ]; then
+            echo "tag=${{ needs.build-and-push-auth.outputs.calver_tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ needs.build-and-push-auth.outputs.sha_tag }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Update auth image tag
+        run: |
+          cd infra/apps/overlays/uat
+          kustomize edit set image ghcr.io/cartsnitch/auth:${{ steps.auth_tag.outputs.tag }}
+
+      - name: Commit and push to infra
+        run: |
+          cd infra
+          git config user.name "cartsnitch-ci[bot]"
+          git config user.email "cartsnitch-ci[bot]@users.noreply.github.com"
+          git add apps/overlays/uat/kustomization.yaml
+          git diff --cached --quiet && echo "No image changes to deploy" && exit 0
+          git commit -m "ci(uat): update cartsnitch, receiptwitness, api, and auth images"
+          git pull --rebase origin main
+          git push origin main

receiptwitness/Dockerfile

@@ -5,7 +5,8 @@ WORKDIR /app
 
 # build-essential and libpq-dev are needed to compile any C-extension wheels
 # (e.g. psycopg2 fallback).  No git needed — common/ is copied from the repo root.
-RUN apt-get update && apt-get install -y --no-install-recommends \
+ARG APT_CACHE_BUST=1
+RUN apt-get update && apt-get upgrade -y && apt-get install -y --no-install-recommends \
     libpq-dev \
     build-essential \
     && rm -rf /var/lib/apt/lists/*
@@ -25,7 +26,8 @@ FROM python:3.12-slim AS prod
 WORKDIR /app
 
 # Install Playwright system dependencies for Chromium
-RUN apt-get update && apt-get install -y --no-install-recommends \
+ARG APT_CACHE_BUST=1
+RUN apt-get update && apt-get upgrade -y && apt-get install -y --no-install-recommends \
     libnss3 \
     libatk1.0-0 \
     libatk-bridge2.0-0 \

receiptwitness/pyproject.toml

@@ -11,14 +11,16 @@ dependencies = [
     "cartsnitch-common>=0.1.0",
     "playwright>=1.49,<2.0",
     "playwright-stealth>=1.0,<2.0",
-    "cryptography>=42.0,<44.0",
+    "cryptography>=46.0,<47.0",
     "fastapi>=0.115,<1.0",
     "uvicorn[standard]>=0.30,<1.0",
+    "beautifulsoup4>=4.12,<5.0",
     "redis>=5.0,<6.0",
     "pydantic>=2.0,<3.0",
     "pydantic-settings>=2.0,<3.0",
     "sqlalchemy[asyncio]>=2.0,<3.0",
     "asyncpg>=0.29,<1.0",
+    "resend>=2.0",
 ]
 
 [project.optional-dependencies]
@@ -27,6 +29,9 @@ dev = [
     "pytest-asyncio>=0.23",
     "ruff>=0.3",
     "pytest-cov>=5.0",
+    "fakeredis[aioredis]>=2.20",
+    "httpx>=0.27",
+    "python-multipart>=0.0.9",
 ]
 
 [tool.hatch.build.targets.wheel]

receiptwitness/src/receiptwitness/api/routes.py

@@ -1,9 +1,65 @@
 """Internal API routes for triggering scrapes and checking status."""
 
-from fastapi import APIRouter
+import hashlib
+import hmac
+import re
+import time
+
+from fastapi import APIRouter, HTTPException, Request
+
+from receiptwitness.config import settings
+from receiptwitness.queue.email import EmailJob, enqueue_email, get_redis
 
 router = APIRouter()
 
+TOKEN_PATTERN = re.compile(r"receipts\+([A-Za-z0-9_-]+)@")
+
+
+def verify_mailgun_signature(token: str, timestamp: str, signature: str) -> bool:
+    """Verify Mailgun webhook signature."""
+    try:
+        ts = int(timestamp)
+    except (ValueError, TypeError):
+        return False
+    if abs(time.time() - ts) > 300:  # 5 min freshness
+        return False
+    key = settings.mailgun_webhook_signing_key.encode()
+    hmac_digest = hmac.new(key, f"{timestamp}{token}".encode(), hashlib.sha256).hexdigest()
+    return hmac.compare_digest(signature, hmac_digest)
+
+
+@router.post("/inbound/email")
+async def receive_inbound_email(request: Request):
+    form = await request.form()
+    # 1. Verify Mailgun signature
+    token = str(form.get("token", ""))
+    timestamp = str(form.get("timestamp", ""))
+    signature = str(form.get("signature", ""))
+    if not verify_mailgun_signature(token, timestamp, signature):
+        raise HTTPException(status_code=406, detail="Invalid signature")
+    # 2. Extract account token from recipient
+    recipient = str(form.get("recipient", ""))
+    match = TOKEN_PATTERN.search(recipient)
+    if not match:
+        raise HTTPException(status_code=406, detail="Invalid recipient")
+    account_token = match.group(1)
+    # 3. Enqueue — worker resolves token -> user_id
+    body_html_val = form.get("body-html")
+    body_plain_val = form.get("body-plain")
+    job = EmailJob(
+        user_id=account_token,
+        sender=str(form.get("sender", "")),
+        recipient=recipient,
+        subject=str(form.get("subject", "")),
+        body_html=str(body_html_val) if body_html_val is not None else None,
+        body_plain=str(body_plain_val) if body_plain_val is not None else None,
+        received_at=str(form.get("timestamp", "")),
+        message_id=str(form.get("Message-Id", "")),
+    )
+    client = await get_redis()
+    await enqueue_email(client, job)
+    return {"status": "queued"}
+
 
 @router.get("/health")
 async def health():

receiptwitness/src/receiptwitness/config.py

@@ -1,8 +1,12 @@
 """Service-specific configuration for ReceiptWitness."""
 
+from pydantic import model_validator
 from pydantic_settings import BaseSettings
 
 
+_PLACEHOLDER_VALUES = {"change-me-in-production"}
+
+
 class ReceiptWitnessSettings(BaseSettings):
     model_config = {"env_prefix": "RW_"}
 
@@ -22,5 +26,42 @@ class ReceiptWitnessSettings(BaseSettings):
     headless: bool = True
     browser_timeout_ms: int = 60000
 
+    # Email notifications (Resend)
+    resend_api_key: str = ""
+    notification_email_from: str = "notifications@cartsnitch.com"
+    notifications_enabled: bool = False
 
-settings = ReceiptWitnessSettings()
+    # Mailgun inbound email webhook
+    mailgun_webhook_signing_key: str = ""
+
+    @model_validator(mode="after")
+    def validate_required_vars(self):
+        errors = []
+        if not self.session_encryption_key or self.session_encryption_key in _PLACEHOLDER_VALUES:
+            errors.append(
+                "RW_SESSION_ENCRYPTION_KEY must be set to a secure value. "
+                'Generate one with: python -c "from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())"'
+            )
+        if self.notifications_enabled and not self.resend_api_key:
+            errors.append(
+                "RW_RESEND_API_KEY must be set when RW_NOTIFICATIONS_ENABLED=true. "
+                "Get an API key from https://resend.com/api-keys"
+            )
+        if errors:
+            raise ValueError(
+                "ReceiptWitness startup failed — missing required config:\n"
+                + "\n".join(f"  - {e}" for e in errors)
+            )
+        return self
+
+
+class _LazySettings:
+    _instance: ReceiptWitnessSettings | None = None
+
+    def __getattr__(self, name: str):
+        if _LazySettings._instance is None:
+            _LazySettings._instance = ReceiptWitnessSettings()
+        return getattr(_LazySettings._instance, name)
+
+
+settings = _LazySettings()

receiptwitness/src/receiptwitness/events.py

@@ -2,12 +2,17 @@
 
 import json
 import logging
+import uuid
 from datetime import UTC, datetime
 from decimal import Decimal
 
 import redis.asyncio as aioredis
+from cartsnitch_common.database import get_async_session_factory
+from cartsnitch_common.models.user import User
+from sqlalchemy import select
 
 from receiptwitness.config import settings
+from receiptwitness.notifications.email import send_receipt_notification
 
 logger = logging.getLogger(__name__)
 
@@ -39,6 +44,36 @@ async def get_redis_client() -> aioredis.Redis:
     return aioredis.Redis(connection_pool=_get_pool())
 
 
+async def _send_notification_for_event(payload: dict) -> None:
+    """Look up user email and send receipt notification. Silently skips on error."""
+    try:
+        user_uuid = uuid.UUID(payload["user_id"])
+    except (ValueError, KeyError):
+        logger.warning("Invalid user_id in event payload: %s", payload.get("user_id"))
+        return
+
+    try:
+        session_factory = get_async_session_factory(settings.database_url)
+        async with session_factory() as session:
+            result = await session.execute(select(User.email).where(User.id == user_uuid))
+            row = result.scalar_one_or_none()
+            if not row:
+                logger.warning("User %s not found for notification", user_uuid)
+                return
+            user_email = row
+    except Exception:
+        logger.exception("Failed to look up user email for notification")
+        return
+
+    await send_receipt_notification(
+        user_email=user_email,
+        store_name=payload["store_slug"],
+        item_count=payload["item_count"],
+        total=payload["total"],
+        purchase_date=payload["purchase_date"],
+    )
+
+
 async def publish_receipt_ingested(
     user_id: str,
     store_slug: str,
@@ -48,18 +83,19 @@ async def publish_receipt_ingested(
     total: Decimal | float,
 ) -> None:
     """Publish a cartsnitch.receipts.ingested event after successful ingestion."""
+    payload = {
+        "user_id": user_id,
+        "store_slug": store_slug,
+        "purchase_id": purchase_id,
+        "purchase_date": purchase_date,
+        "item_count": item_count,
+        "total": float(total) if isinstance(total, Decimal) else total,
+    }
     event = {
         "event_type": CHANNEL_RECEIPTS_INGESTED,
         "timestamp": datetime.now(UTC).isoformat(),
         "service": "receiptwitness",
-        "payload": {
-            "user_id": user_id,
-            "store_slug": store_slug,
-            "purchase_id": purchase_id,
-            "purchase_date": purchase_date,
-            "item_count": item_count,
-            "total": float(total) if isinstance(total, Decimal) else total,
-        },
+        "payload": payload,
     }
 
     try:
@@ -73,3 +109,5 @@ async def publish_receipt_ingested(
     except aioredis.ConnectionError:
         logger.error("Failed to publish event — Redis/DragonflyDB connection error")
         raise
+    else:
+        await _send_notification_for_event(payload)

receiptwitness/src/receiptwitness/notifications/email.py

@@ -0,0 +1,45 @@
+"""Email notifications via Resend."""
+
+import asyncio
+import html
+import logging
+
+import resend
+
+from receiptwitness.config import settings
+
+logger = logging.getLogger(__name__)
+
+
+async def send_receipt_notification(
+    user_email: str,
+    store_name: str,
+    item_count: int,
+    total: float,
+    purchase_date: str,
+) -> None:
+    """Send receipt ingestion confirmation email via Resend."""
+    if not settings.notifications_enabled or not settings.resend_api_key:
+        logger.debug("Notifications disabled — skipping email send")
+        return
+
+    resend.api_key = settings.resend_api_key
+    store_name_safe = html.escape(store_name)
+    purchase_date_safe = html.escape(purchase_date)
+    try:
+        await asyncio.to_thread(
+            resend.Emails.send,
+            {
+                "from": settings.notification_email_from,
+                "to": [user_email],
+                "subject": f"Receipt processed: {store_name} - ${total:.2f}",
+                "html": (
+                    f"<p>Your receipt from <strong>{store_name_safe}</strong> on "
+                    f"{purchase_date_safe} has been processed.</p>"
+                    f"<p>{item_count} items, total: ${total:.2f}</p>"
+                ),
+            },
+        )
+        logger.info("Receipt notification sent to %s", user_email)
+    except Exception:
+        logger.exception("Failed to send receipt notification to %s", user_email)

receiptwitness/src/receiptwitness/parsers/email/__init__.py

@@ -0,0 +1 @@
+"""Email receipt parsers for retailer email receipts."""

receiptwitness/src/receiptwitness/parsers/email/base.py

@@ -0,0 +1,32 @@
+"""Base interface for email receipt parsers."""
+
+from abc import ABC, abstractmethod
+from dataclasses import dataclass, field
+
+
+@dataclass
+class EmailReceipt:
+    """Raw email data before parsing."""
+
+    sender: str
+    recipient: str
+    subject: str
+    body_html: str | None = None
+    body_plain: str | None = None
+    received_at: str | None = None
+    raw_headers: dict = field(default_factory=dict)
+
+
+class BaseEmailParser(ABC):
+    """All retailer email parsers implement this interface."""
+
+    @abstractmethod
+    def can_parse(self, email: EmailReceipt) -> bool:
+        """Return True if this parser handles this email."""
+        ...
+
+    @abstractmethod
+    def parse(self, email: EmailReceipt) -> dict:
+        """Parse email into a dict matching PurchaseCreate schema fields.
+        Must include an items list matching PurchaseItemCreate fields."""
+        ...

receiptwitness/src/receiptwitness/parsers/email/detector.py

@@ -0,0 +1,25 @@
+"""Detect which retailer sent a receipt email."""
+
+import re
+
+from receiptwitness.parsers.email.base import EmailReceipt
+
+RETAILER_PATTERNS: dict[str, list[str]] = {
+    "meijer": [r"@meijer\.com$", r"@email\.meijer\.com$"],
+    "kroger": [r"@kroger\.com$", r"@email\.kroger\.com$"],
+    "target": [r"@target\.com$", r"@email\.target\.com$"],
+}
+
+
+def detect_retailer(email: EmailReceipt) -> str | None:
+    """Return retailer slug or None if unrecognized."""
+    sender = email.sender.lower().strip()
+    # Extract email from "Name <email>" format
+    match = re.search(r"<([^>]+)>", sender)
+    if match:
+        sender = match.group(1)
+    for retailer, patterns in RETAILER_PATTERNS.items():
+        for pattern in patterns:
+            if re.search(pattern, sender):
+                return retailer
+    return None

receiptwitness/src/receiptwitness/parsers/email/kroger.py

@@ -0,0 +1,157 @@
+"""Kroger email receipt parser."""
+
+import logging
+import re
+from datetime import datetime
+from decimal import Decimal, InvalidOperation
+
+from bs4 import BeautifulSoup
+
+from receiptwitness.parsers.email.base import BaseEmailParser, EmailReceipt
+
+logger = logging.getLogger(__name__)
+
+
+def _to_decimal(value: str | float | int | None, default: Decimal = Decimal("0")) -> Decimal:
+    """Safely convert a value to Decimal."""
+    if value is None:
+        return default
+    try:
+        return Decimal(str(value).replace("$", "").replace(",", "").strip())
+    except (InvalidOperation, ValueError):
+        return default
+
+
+def _extract_total(body: str) -> Decimal:
+    """Extract the transaction total from email body."""
+    patterns = [
+        r"Total[:\s]*\$?([0-9,]+\.[0-9]{2})",
+        r"Amount[:\s]*\$?([0-9,]+\.[0-9]{2})",
+        r"Grand\s+Total[:\s]*\$?([0-9,]+\.[0-9]{2})",
+    ]
+    for pattern in patterns:
+        match = re.search(pattern, body, re.IGNORECASE)
+        if match:
+            return _to_decimal(match.group(1))
+    return Decimal("0")
+
+
+def _extract_receipt_id(body: str) -> str | None:
+    """Extract receipt ID / transaction ID from HTML body.
+
+    Strips HTML tags first so that whitespace between delimiters and values
+    (e.g. from ``</strong> KR-2026-0315-4829`` -> `` KR-2026-0315-4829``)
+    is normalized and the pattern can match cleanly.
+    """
+    stripped = re.sub(r"<[^>]+>", "", body)
+    patterns = [
+        r"Receipt\s*#[:\s]*([A-Z0-9-]+)",
+        r"Transaction\s*#[:\s]*([A-Z0-9-]+)",
+        r"Order\s*#[:\s]*([A-Z0-9-]+)",
+        r"Confirmation\s*#[:\s]*([A-Z0-9-]+)",
+    ]
+    for pattern in patterns:
+        match = re.search(pattern, stripped, re.IGNORECASE)
+        if match:
+            return match.group(1)
+    return None
+
+
+def _extract_date(body: str) -> str:
+    """Extract purchase date from email body. Returns ISO date string or empty string."""
+    patterns = [
+        r"(\d{1,2}[/-]\d{1,2}[/-]\d{2,4})",
+        r"([A-Z][a-z]{2}\s+\d{1,2},?\s+\d{4})",
+    ]
+    for pattern in patterns:
+        match = re.search(pattern, body)
+        if match:
+            raw = match.group(1)
+            try:
+                dt = datetime.strptime(raw.replace(",", ""), "%b %d %Y")
+                return dt.strftime("%Y-%m-%d")
+            except ValueError:
+                pass
+            try:
+                for fmt in ("%m/%d/%Y", "%m/%d/%y", "%d/%m/%Y", "%d/%m/%y"):
+                    try:
+                        dt = datetime.strptime(raw, fmt)
+                        return dt.strftime("%Y-%m-%d")
+                    except ValueError:
+                        continue
+            except Exception:
+                pass
+    return ""
+
+
+def _extract_items_soup(body: str) -> list[dict]:
+    """Extract line items from HTML email body using BeautifulSoup."""
+    items = []
+    try:
+        soup = BeautifulSoup(body, "html.parser")
+        text = soup.get_text(separator="\n", strip=True)
+        # Strip HTML tags from raw body to normalize whitespace
+        stripped = re.sub(r"<[^>]+>", " ", body)
+        stripped = re.sub(r"\s+", " ", stripped)
+        skip_prefixes = (
+            "Subtotal",
+            "Tax",
+            "Total",
+            "Kroger",
+            "Target",
+            "Date",
+            "Receipt",
+            "Order",
+            "Transaction",
+            "Confirmation",
+            "Thank",
+            "Questions",
+            "Keep",
+            "Receipt",
+        )
+        for line in text.split("\n"):
+            line = line.strip()
+            if not line or line.startswith(skip_prefixes):
+                continue
+            # Match lines like "Product Name $9.99"
+            match = re.match(r"(.+?)\s+\$([0-9]+\.[0-9]{2})\s*$", line)
+            if match:
+                name = match.group(1).strip()
+                price = _to_decimal(match.group(2))
+                if len(name) > 2 and price > 0:
+                    items.append(
+                        {
+                            "product_name_raw": name,
+                            "quantity": Decimal("1"),
+                            "unit_price": price,
+                            "extended_price": price,
+                        }
+                    )
+    except Exception:
+        pass
+    return items[:20]
+
+
+class KrogerEmailParser(BaseEmailParser):
+    """Parse Kroger email receipts (digital receipts via kroger.com)."""
+
+    KROGER_KEYWORDS = ("kroger", "kroger.com", "plus")
+
+    def can_parse(self, email: EmailReceipt) -> bool:
+        sender = (email.sender or "").lower()
+        body = (email.body_html or email.body_plain or "").lower()
+        return any(kw in sender or kw in body for kw in self.KROGER_KEYWORDS)
+
+    def parse(self, email: EmailReceipt) -> dict:
+        body = (email.body_html or email.body_plain or "").strip()
+        total = _extract_total(body)
+        receipt_id = _extract_receipt_id(body) or ""
+        purchase_date = _extract_date(body)
+        items = _extract_items_soup(body)
+
+        return {
+            "receipt_id": receipt_id,
+            "purchase_date": purchase_date,
+            "total": total,
+            "items": items,
+        }

receiptwitness/src/receiptwitness/parsers/email/meijer.py

@@ -0,0 +1,259 @@
+"""Parse Meijer digital receipt emails into structured purchase data."""
+
+import re
+from decimal import Decimal, InvalidOperation
+
+from bs4 import BeautifulSoup
+from bs4.element import Tag
+
+from receiptwitness.parsers.email.base import BaseEmailParser, EmailReceipt
+
+
+def _to_decimal(value, default: str = "0") -> Decimal:
+    """Safely convert a value to Decimal."""
+    if value is None:
+        return Decimal(default)
+    try:
+        return Decimal(str(value).replace("$", "").replace(",", "").strip())
+    except (InvalidOperation, ValueError, TypeError):
+        return Decimal(default)
+
+
+def _extract_receipt_id(soup: BeautifulSoup, subject: str | None) -> str | None:
+    """Extract receipt/transaction ID from subject or body."""
+    if subject:
+        match = re.search(r"TXN[-\s]\d{4}[-\s]\d{4}[-\s]\d+", subject)
+        if match:
+            return match.group(0).replace(" ", "-")
+    # Fallback: look in body
+    text = soup.get_text()
+    match = re.search(r"TXN[-\s]\d{4}[-\s]\d{4}[-\s]\d+", text)
+    if match:
+        return match.group(0).replace(" ", "-")
+    return None
+
+
+def _extract_purchase_date(soup: BeautifulSoup, subject: str | None) -> str | None:
+    """Extract purchase date from subject or body."""
+    text = soup.get_text()
+
+    # Try ISO format first: YYYY-MM-DD
+    match = re.search(r"(\d{4})-(\d{2})-(\d{2})", text)
+    if match:
+        return f"{match.group(1)}-{match.group(2)}-{match.group(3)}"
+
+    # Try written format: March 15, 2026
+    match = re.search(r"([A-Za-z]+)\s+(\d{1,2}),?\s+(\d{4})", text)
+    if match:
+        month_str = match.group(1).lower()
+        day = match.group(2)
+        year = match.group(3)
+        month_map = {
+            "january": "01",
+            "february": "02",
+            "march": "03",
+            "april": "04",
+            "may": "05",
+            "june": "06",
+            "july": "07",
+            "august": "08",
+            "september": "09",
+            "october": "10",
+            "november": "11",
+            "december": "12",
+        }
+        month = month_map.get(month_str)
+        if month:
+            return f"{year}-{month}-{day.zfill(2)}"
+
+    # MM/DD/YYYY
+    match = re.search(r"(\d{1,2})/(\d{1,2})/(\d{4})", text)
+    if match:
+        return f"{match.group(3)}-{match.group(1).zfill(2)}-{match.group(2).zfill(2)}"
+
+    return None
+
+
+def _extract_store_info(soup: BeautifulSoup) -> dict:
+    """Extract store name and number from the email body."""
+    store_info: dict = {}
+
+    # Look for store number in header
+    store_num_match = re.search(r"Meijer\s+Store\s+#?(\d+)", soup.get_text(), re.IGNORECASE)
+    if store_num_match:
+        store_info["store_number"] = store_num_match.group(1)
+
+    return store_info
+
+
+def _extract_items(table: Tag | None) -> list[dict]:
+    """Extract line items from the items table."""
+    items: list[dict] = []
+    if not table:
+        return items
+
+    rows = table.find_all("tr")
+    for row in rows:
+        cells = row.find_all("td")
+        if len(cells) < 3:
+            continue
+
+        name_cell = cells[0].get_text(strip=True)
+        qty_cell = cells[1].get_text(strip=True)
+        price_cell = cells[2].get_text(strip=True)
+
+        if not name_cell or name_cell.lower() in ("item", "description"):
+            continue
+
+        # Skip subtotal/tax/total/savings rows
+        if any(
+            label in name_cell.lower()
+            for label in ("subtotal", "tax", "total", "savings", "grand total")
+        ):
+            continue
+
+        try:
+            quantity = Decimal(qty_cell)
+        except (InvalidOperation, ValueError, TypeError):
+            quantity = Decimal("1")
+
+        price_str = price_cell.replace("$", "").replace(",", "").strip()
+        try:
+            unit_price = Decimal(price_str)
+        except (InvalidOperation, ValueError, TypeError):
+            unit_price = Decimal("0")
+
+        extended_price = unit_price  # Default to unit price; no qty column in fixture
+
+        items.append(
+            {
+                "product_name_raw": name_cell,
+                "quantity": quantity,
+                "unit_price": unit_price,
+                "extended_price": extended_price,
+            }
+        )
+
+    return items
+
+
+def _extract_totals_plain(text: str) -> dict:
+    """Extract totals from plain text (no HTML)."""
+    totals: dict = {
+        "subtotal": None,
+        "tax": None,
+        "total": None,
+        "savings_total": None,
+    }
+
+    match = re.search(r"\bSubtotal\b[:\s$]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+    if match:
+        totals["subtotal"] = _to_decimal(match.group(1))
+
+    match = re.search(r"\bTax\b[:\s$]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+    if match:
+        totals["tax"] = _to_decimal(match.group(1))
+
+    grand_total_match = re.search(r"Grand\s+Total\b[:\s$]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+    if grand_total_match:
+        totals["total"] = _to_decimal(grand_total_match.group(1))
+
+    savings_match = re.search(r"\bSavings\b[:\s$\-]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+    if savings_match:
+        totals["savings_total"] = _to_decimal(savings_match.group(1))
+
+    if totals["total"] is None:
+        total_match = re.search(r"\bTotal\b[:\s$]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+        if total_match:
+            totals["total"] = _to_decimal(total_match.group(1))
+
+    return totals
+
+
+def _extract_totals(soup: BeautifulSoup) -> dict:
+    """Extract subtotal, tax, total, and savings from the totals section."""
+    text = soup.get_text()
+
+    totals: dict = {
+        "subtotal": None,
+        "tax": None,
+        "total": None,
+        "savings_total": None,
+    }
+
+    # Subtotal — use word boundary to avoid matching "Subtotal" with "Total"
+    match = re.search(r"\bSubtotal\b[:\s$]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+    if match:
+        totals["subtotal"] = _to_decimal(match.group(1))
+
+    # Tax
+    match = re.search(r"\bTax\b[:\s$]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+    if match:
+        totals["tax"] = _to_decimal(match.group(1))
+
+    # Grand Total (before plain "Total" to avoid matching "Subtotal")
+    grand_total_match = re.search(r"Grand\s+Total\b[:\s$]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+    if grand_total_match:
+        totals["total"] = _to_decimal(grand_total_match.group(1))
+
+    # Savings — allow any combination of whitespace/$- around the number
+    savings_match = re.search(r"\bSavings\b[:\s$\-]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+    if savings_match:
+        totals["savings_total"] = _to_decimal(savings_match.group(1))
+
+    # Plain "Total" only if Grand Total wasn't found
+    if totals["total"] is None:
+        total_match = re.search(r"\bTotal\b[:\s$]*([0-9,]+\.?\d*)", text, re.IGNORECASE)
+        if total_match:
+            totals["total"] = _to_decimal(total_match.group(1))
+
+    return totals
+
+
+class MeijerEmailParser(BaseEmailParser):
+    """Parse Meijer digital receipt emails forwarded by users."""
+
+    def can_parse(self, email: EmailReceipt) -> bool:
+        sender = email.sender.lower().strip()
+        # Extract email from "Name <email>" format
+        match = re.search(r"<([^>]+)>", sender)
+        if match:
+            sender = match.group(1)
+        return "meijer" in sender
+
+    def parse(self, email: EmailReceipt) -> dict:
+        body_html = email.body_html
+        body_plain = email.body_plain or ""
+        body = body_html or body_plain
+        soup = BeautifulSoup(body, "html.parser")
+
+        receipt_id = _extract_receipt_id(soup, email.subject)
+        purchase_date = _extract_purchase_date(soup, email.subject)
+        _ = _extract_store_info(soup)
+
+        # Find the items table — look for one with Item/Qty/Price headers
+        table = None
+        for tbl in soup.find_all("table"):
+            headers = tbl.find_all("th")
+            header_texts = [h.get_text(strip=True).lower() for h in headers]
+            if any("item" in h or "qty" in h or "price" in h for h in header_texts):
+                table = tbl
+                break
+
+        items = _extract_items(table)
+
+        # Extract totals from HTML; fall back to plain text if no HTML
+        if body_html:
+            totals = _extract_totals(soup)
+        else:
+            totals = _extract_totals_plain(body_plain)
+
+        return {
+            "receipt_id": receipt_id or "",
+            "purchase_date": purchase_date or "",
+            "total": totals["total"] or Decimal("0"),
+            "subtotal": totals["subtotal"],
+            "tax": totals["tax"],
+            "savings_total": totals["savings_total"],
+            "items": items,
+        }

receiptwitness/src/receiptwitness/parsers/email/target.py

@@ -0,0 +1,156 @@
+"""Target email receipt parser."""
+
+import logging
+import re
+from datetime import datetime
+from decimal import Decimal, InvalidOperation
+
+from bs4 import BeautifulSoup
+
+from receiptwitness.parsers.email.base import BaseEmailParser, EmailReceipt
+
+logger = logging.getLogger(__name__)
+
+
+def _to_decimal(value: str | float | int | None, default: Decimal = Decimal("0")) -> Decimal:
+    """Safely convert a value to Decimal."""
+    if value is None:
+        return default
+    try:
+        return Decimal(str(value).replace("$", "").replace(",", "").strip())
+    except (InvalidOperation, ValueError):
+        return default
+
+
+def _extract_total(body: str) -> Decimal:
+    """Extract the transaction total from email body."""
+    patterns = [
+        r"Total[:\s]*\$?([0-9,]+\.[0-9]{2})",
+        r"Amount[:\s]*\$?([0-9,]+\.[0-9]{2})",
+        r"Grand\s+Total[:\s]*\$?([0-9,]+\.[0-9]{2})",
+    ]
+    for pattern in patterns:
+        match = re.search(pattern, body, re.IGNORECASE)
+        if match:
+            return _to_decimal(match.group(1))
+    return Decimal("0")
+
+
+def _extract_receipt_id(body: str) -> str | None:
+    """Extract receipt ID / transaction ID from HTML body.
+
+    Strips HTML tags first so that whitespace between delimiters and values
+    (e.g. from ``</strong> TGT-2026-0318-9124`` -> `` TGT-2026-0318-9124``)
+    is normalized and the pattern can match cleanly.
+    """
+    stripped = re.sub(r"<[^>]+>", "", body)
+    patterns = [
+        r"Receipt\s*#[:\s]*([A-Z0-9-]+)",
+        r"Order\s*#[:\s]*([A-Z0-9-]+)",
+        r"Confirmation\s*#[:\s]*([A-Z0-9-]+)",
+        r"Target\s+Order\s*#[:\s]*([A-Z0-9-]+)",
+    ]
+    for pattern in patterns:
+        match = re.search(pattern, stripped, re.IGNORECASE)
+        if match:
+            return match.group(1)
+    return None
+
+
+def _extract_date(body: str) -> str:
+    """Extract purchase date from email body. Returns ISO date string or empty string."""
+    patterns = [
+        r"(\d{1,2}[/-]\d{1,2}[/-]\d{2,4})",
+        r"([A-Z][a-z]{2}\s+\d{1,2},?\s+\d{4})",
+    ]
+    for pattern in patterns:
+        match = re.search(pattern, body)
+        if match:
+            raw = match.group(1)
+            try:
+                dt = datetime.strptime(raw.replace(",", ""), "%b %d %Y")
+                return dt.strftime("%Y-%m-%d")
+            except ValueError:
+                pass
+            try:
+                for fmt in ("%m/%d/%Y", "%m/%d/%y", "%d/%m/%Y", "%d/%m/%y"):
+                    try:
+                        dt = datetime.strptime(raw, fmt)
+                        return dt.strftime("%Y-%m-%d")
+                    except ValueError:
+                        continue
+            except Exception:
+                pass
+    return ""
+
+
+def _extract_items_soup(body: str) -> list[dict]:
+    """Extract line items from HTML email body using BeautifulSoup."""
+    items = []
+    try:
+        soup = BeautifulSoup(body, "html.parser")
+        text = soup.get_text(separator="\n", strip=True)
+        for line in text.split("\n"):
+            line = line.strip()
+            if not line or line.startswith(
+                (
+                    "Subtotal",
+                    "Tax",
+                    "Total",
+                    "Target",
+                    "Kroger",
+                    "Date",
+                    "Receipt",
+                    "Order",
+                    "Transaction",
+                    "Confirmation",
+                    "Thank",
+                    "Questions",
+                    "Keep",
+                    "Receipt",
+                    "Store",
+                )
+            ):
+                continue
+            # Match lines like "Product Name $9.99"
+            match = re.match(r"(.+?)\s+\$([0-9]+\.[0-9]{2})\s*$", line)
+            if match:
+                name = match.group(1).strip()
+                price = _to_decimal(match.group(2))
+                if len(name) > 2 and price > 0:
+                    items.append(
+                        {
+                            "product_name_raw": name,
+                            "quantity": Decimal("1"),
+                            "unit_price": price,
+                            "extended_price": price,
+                        }
+                    )
+    except Exception:
+        pass
+    return items[:20]
+
+
+class TargetEmailParser(BaseEmailParser):
+    """Parse Target email receipts (Circle order confirmations)."""
+
+    TARGET_KEYWORDS = ("target.com", "targetnow", "circle", "target")
+
+    def can_parse(self, email: EmailReceipt) -> bool:
+        sender = (email.sender or "").lower()
+        body = (email.body_html or email.body_plain or "").lower()
+        return any(kw in sender or kw in body for kw in self.TARGET_KEYWORDS)
+
+    def parse(self, email: EmailReceipt) -> dict:
+        body = (email.body_html or email.body_plain or "").strip()
+        total = _extract_total(body)
+        receipt_id = _extract_receipt_id(body) or ""
+        purchase_date = _extract_date(body)
+        items = _extract_items_soup(body)
+
+        return {
+            "receipt_id": receipt_id,
+            "purchase_date": purchase_date,
+            "total": total,
+            "items": items,
+        }

receiptwitness/src/receiptwitness/pipeline/normalization.py

@@ -5,12 +5,14 @@ Matches products across retailers by:
 2. Fuzzy name matching via token-based Jaccard similarity (lower confidence)
 """
 
+import json
 import re
 from dataclasses import dataclass
 from enum import StrEnum
 
 from cartsnitch_common.models.product import NormalizedProduct
-from sqlalchemy import select
+from sqlalchemy import cast, func, select, String
+from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.orm import Session
 
 
@@ -96,17 +98,24 @@ def jaccard_similarity(a: str, b: str) -> float:
 def match_by_upc(session: Session, upc: str) -> MatchResult | None:
     """Find a normalized product by exact UPC match.
 
-    Loads products with upc_variants and checks membership in Python
-    for cross-database compatibility (works on both PostgreSQL and SQLite).
+    Uses PostgreSQL JSONB containment (@>) for production efficiency.
+    Falls back to LIKE on SQLite for test compatibility.
     """
-    # TODO: Use PostgreSQL JSON containment query (@>) for production.
-    # Current approach loads all products into memory — acceptable for tests
-    # and small datasets, but will not scale.
-    stmt = select(NormalizedProduct).where(NormalizedProduct.upc_variants.is_not(None))
-    products = session.execute(stmt).scalars().all()
-    for product in products:
-        if product.upc_variants and upc in product.upc_variants:
-            return MatchResult(product=product, confidence=1.0, method=MatchMethod.UPC)
+    dialect_name = session.bind.dialect.name if session.bind else "default"
+    if dialect_name == "postgresql":
+        stmt = select(NormalizedProduct).where(
+            cast(NormalizedProduct.upc_variants, JSONB).op("@>")(
+                func.cast(json.dumps([upc]), JSONB)
+            )
+        )
+    else:
+        stmt = select(NormalizedProduct).where(
+            NormalizedProduct.upc_variants.is_not(None),
+            cast(NormalizedProduct.upc_variants, String).contains(upc),
+        )
+    product = session.execute(stmt).scalars().first()
+    if product:
+        return MatchResult(product=product, confidence=1.0, method=MatchMethod.UPC)
     return None
 
 

receiptwitness/src/receiptwitness/queue/__init__.py

@@ -0,0 +1 @@
+"""DragonflyDB Streams queue for email receipt processing."""

receiptwitness/src/receiptwitness/queue/email.py

@@ -0,0 +1,77 @@
+"""DragonflyDB Streams queue for email receipt processing."""
+
+from __future__ import annotations
+
+import json
+import logging
+from dataclasses import asdict, dataclass
+from typing import cast
+
+import redis.asyncio as aioredis
+
+from receiptwitness.config import settings
+
+logger = logging.getLogger(__name__)
+
+STREAM_KEY = "email:receipts"
+CONSUMER_GROUP = "email-workers"
+
+
+@dataclass
+class EmailJob:
+    """Payload for an email receipt processing job."""
+
+    user_id: str
+    sender: str
+    recipient: str
+    subject: str
+    body_html: str | None
+    body_plain: str | None
+    received_at: str
+    message_id: str  # from email provider, for dedup
+
+
+async def get_redis() -> aioredis.Redis:
+    """Get async Redis/DragonflyDB client."""
+    return cast(aioredis.Redis, aioredis.from_url(settings.redis_url, decode_responses=True))
+
+
+async def ensure_consumer_group(client: aioredis.Redis) -> None:
+    """Create consumer group if it does not exist."""
+    try:
+        await client.xgroup_create(STREAM_KEY, CONSUMER_GROUP, id="0", mkstream=True)
+    except aioredis.ResponseError as e:
+        if "BUSYGROUP" not in str(e):
+            raise
+
+
+async def enqueue_email(client: aioredis.Redis, job: EmailJob) -> str:
+    """Add email job to the stream. Returns the stream message ID."""
+    payload: dict[str, str | bytes | int | float] = {"data": json.dumps(asdict(job))}
+    msg_id: str = cast(str, await client.xadd(STREAM_KEY, payload))  # type: ignore[arg-type]  # redis-py StreamCommands.xadd expects broader FieldT union; runtime behavior is correct
+    logger.info("Enqueued email job %s for user %s", msg_id, job.user_id)
+    return msg_id
+
+
+async def consume_emails(
+    client: aioredis.Redis,
+    consumer_name: str,
+    count: int = 1,
+    block_ms: int = 5000,
+) -> list[tuple[str, EmailJob]]:
+    """Read pending messages from the stream. Returns list of (msg_id, EmailJob)."""
+    await ensure_consumer_group(client)
+    messages = await client.xreadgroup(
+        CONSUMER_GROUP, consumer_name, {STREAM_KEY: ">"}, count=count, block=block_ms
+    )
+    results = []
+    for _stream, entries in messages:
+        for msg_id, fields in entries:
+            job = EmailJob(**json.loads(fields["data"]))
+            results.append((msg_id, job))
+    return results
+
+
+async def ack_email(client: aioredis.Redis, msg_id: str) -> None:
+    """Acknowledge a processed message."""
+    await client.xack(STREAM_KEY, CONSUMER_GROUP, msg_id)

receiptwitness/src/receiptwitness/worker/__init__.py

@@ -0,0 +1 @@
+"""Async email receipt worker consuming from DragonflyDB Streams."""

receiptwitness/src/receiptwitness/worker/email_worker.py

@@ -0,0 +1,104 @@
+"""Async worker that consumes email receipt jobs from DragonflyDB Streams."""
+
+import asyncio
+import logging
+
+from cartsnitch_common.database import get_async_session_factory
+from cartsnitch_common.models.user import User
+from sqlalchemy import select
+
+from receiptwitness.config import settings
+from receiptwitness.events import publish_receipt_ingested
+from receiptwitness.parsers.email.base import BaseEmailParser, EmailReceipt
+from receiptwitness.parsers.email.detector import detect_retailer
+from receiptwitness.parsers.email.kroger import KrogerEmailParser
+from receiptwitness.parsers.email.meijer import MeijerEmailParser
+from receiptwitness.parsers.email.target import TargetEmailParser
+from receiptwitness.queue.email import ack_email, consume_emails, get_redis
+
+logger = logging.getLogger(__name__)
+
+CONSUMER_NAME = "worker-1"
+
+# Registry of available email parsers
+PARSERS: dict[str, BaseEmailParser] = {
+    "meijer": MeijerEmailParser(),
+    "kroger": KrogerEmailParser(),
+    "target": TargetEmailParser(),
+}
+
+
+async def resolve_user(token: str) -> str | None:
+    """Look up user_id from email_inbound_token."""
+    session_factory = get_async_session_factory(settings.database_url)
+    async with session_factory() as session:
+        result = await session.execute(select(User.id).where(User.email_inbound_token == token))
+        row = result.scalar_one_or_none()
+        return str(row) if row else None
+
+
+async def process_job(msg_id: str, job) -> bool:
+    """Process a single email job. Returns True on success."""
+    # 1. Resolve user from token
+    user_id = await resolve_user(job.user_id)  # user_id field holds token
+    if not user_id:
+        logger.warning("Unknown token %s, dropping message %s", job.user_id, msg_id)
+        return True  # ack to avoid infinite retry
+
+    # 2. Build EmailReceipt
+    email = EmailReceipt(
+        sender=job.sender,
+        recipient=job.recipient,
+        subject=job.subject,
+        body_html=job.body_html,
+        body_plain=job.body_plain,
+        received_at=job.received_at,
+    )
+
+    # 3. Detect retailer
+    retailer = detect_retailer(email)
+    if not retailer or retailer not in PARSERS:
+        logger.warning(
+            "Unrecognized retailer from %s, archiving msg %s",
+            job.sender,
+            msg_id,
+        )
+        return True  # ack — no parser available
+
+    # 4. Parse
+    parser = PARSERS[retailer]
+    parsed = parser.parse(email)
+
+    # 5. Publish event
+    await publish_receipt_ingested(
+        user_id=user_id,
+        store_slug=retailer,
+        purchase_id=parsed.get("receipt_id", msg_id),
+        purchase_date=parsed.get("purchase_date", ""),
+        item_count=len(parsed.get("items", [])),
+        total=parsed.get("total", 0),
+    )
+    return True
+
+
+async def run_worker() -> None:
+    """Main worker loop — consume and process email jobs."""
+    client = await get_redis()
+    logger.info("Email worker started, consuming from email:receipts")
+    while True:
+        try:
+            jobs = await consume_emails(client, CONSUMER_NAME, count=5, block_ms=5000)
+            for msg_id, job in jobs:
+                try:
+                    success = await process_job(msg_id, job)
+                    if success:
+                        await ack_email(client, msg_id)
+                except Exception:
+                    logger.exception("Failed to process email job %s", msg_id)
+        except Exception:
+            logger.exception("Worker loop error, retrying in 5s")
+            await asyncio.sleep(5)
+
+
+if __name__ == "__main__":
+    asyncio.run(run_worker())

receiptwitness/tests/conftest.py

@@ -1,12 +1,16 @@
 """Shared test fixtures."""
 
 import json
+import os
 from pathlib import Path
 
 import pytest
 
 FIXTURES_DIR = Path(__file__).parent / "fixtures"
 
+os.environ.setdefault("RW_SESSION_ENCRYPTION_KEY", "test-secret-key-for-unit-tests-only-32bytes!")
+os.environ.setdefault("RW_MAILGUN_WEBHOOK_SIGNING_KEY", "test-mailgun-signing-key")
+
 
 @pytest.fixture
 def meijer_receipt_data() -> dict:

receiptwitness/tests/fixtures/kroger_email_receipt.html

@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <title>Kroger Digital Receipt</title>
+</head>
+<body style="font-family: Arial, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px; color: #333;">
+  <div style="background-color: #0057a8; color: white; padding: 20px; text-align: center;">
+    <img src="https://www.kroger.com/email-logo.png" alt="Kroger" style="height: 40px;">
+    <h1 style="margin: 10px 0; font-size: 24px;">Your Digital Receipt</h1>
+    <p style="margin: 0;">Kroger Plus Member</p>
+  </div>
+
+  <div style="padding: 20px; background-color: #f5f5f5;">
+    <h2 style="color: #0057a8; margin-top: 0;">Kroger #882 - Downtown</h2>
+    <p style="margin: 5px 0;">123 Main Street<br>Anytown, OH 45202</p>
+    <p style="margin: 5px 0;"><strong>Date:</strong> 03/15/2026</p>
+    <p style="margin: 5px 0;"><strong>Receipt #:</strong> KR-2026-0315-4829</p>
+    <p style="margin: 5px 0;"><strong>Transaction #:</strong> TXN-789123456</p>
+  </div>
+
+  <div style="padding: 20px;">
+    <h3>Items Purchased</h3>
+    <p>Whole Milk 1 Gallon $3.99</p>
+    <p>Sourdough Bread $4.49</p>
+    <p>Free Range Eggs 12ct $5.99</p>
+    <p>Baby Spinach 5oz $4.29</p>
+  </div>
+
+  <div style="padding: 20px; background-color: #e8f4e8; border-left: 4px solid #0057a8;">
+    <p style="margin: 5px 0;"><strong>Subtotal:</strong> $18.76</p>
+    <p style="margin: 5px 0;"><strong>Tax:</strong> $1.24</p>
+    <p style="margin: 5px 0; color: #0057a8; font-weight: bold; font-size: 18px;">Total: $20.00</p>
+  </div>
+
+  <div style="padding: 15px; margin-top: 15px; background-color: #fff8e1; border-left: 4px solid #ffc107;">
+    <p style="margin: 0; font-size: 14px; color: #666;">Kroger Plus Savings: <strong>$3.25</strong> saved on this order.</p>
+  </div>
+
+  <div style="padding: 20px; text-align: center; color: #999; font-size: 12px; margin-top: 20px;">
+    <p>Thank you for shopping at Kroger!</p>
+    <p>Keep your receipt for returns within 90 days.</p>
+  </div>
+</body>
+</html>

receiptwitness/tests/fixtures/meijer_email_receipt.html

@@ -0,0 +1,127 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>Meijer Digital Receipt</title>
+  <style>
+    body { font-family: Arial, sans-serif; background: #f4f4f4; margin: 0; padding: 20px; }
+    .receipt-container { background: #ffffff; max-width: 600px; margin: 0 auto; padding: 30px; border: 1px solid #dddddd; }
+    .header { background: #003399; color: #ffffff; padding: 20px; text-align: center; margin: -30px -30px 20px -30px; }
+    .header h1 { margin: 0; font-size: 24px; }
+    .store-info { text-align: center; margin-bottom: 20px; border-bottom: 2px dashed #cccccc; padding-bottom: 15px; }
+    .store-info h2 { margin: 0; font-size: 18px; color: #003399; }
+    .receipt-meta { display: flex; justify-content: space-between; font-size: 14px; color: #555555; margin-bottom: 20px; }
+    table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
+    th { background: #f0f0f0; text-align: left; padding: 8px 10px; font-size: 13px; color: #333333; }
+    td { padding: 8px 10px; border-bottom: 1px solid #eeeeee; font-size: 14px; }
+    .item-name { font-weight: bold; }
+    .totals { margin-left: auto; width: 250px; }
+    .totals-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 14px; }
+    .totals-row.grand-total { font-weight: bold; font-size: 16px; border-top: 2px solid #333333; padding-top: 10px; margin-top: 4px; }
+    .savings { color: #cc0000; }
+    .footer { text-align: center; font-size: 12px; color: #888888; margin-top: 20px; padding-top: 15px; border-top: 1px solid #dddddd; }
+  </style>
+</head>
+<body>
+  <div class="receipt-container">
+    <div class="header">
+      <h1>MEIJER</h1>
+      <p style="margin: 5px 0 0; font-size: 14px;">Digital Receipt</p>
+    </div>
+
+    <div class="store-info">
+      <h2>Meijer Store #42</h2>
+      <p style="margin: 5px 0 0; font-size: 13px; color: #666;">1555 Lake Drive SE, Grand Rapids, MI 49506</p>
+    </div>
+
+    <div class="receipt-meta">
+      <div>
+        <strong>Date:</strong> March 15, 2026<br />
+        <strong>Time:</strong> 2:34 PM
+      </div>
+      <div style="text-align: right;">
+        <strong>Transaction #</strong><br />
+        TXN-2026-0315-0042
+      </div>
+    </div>
+
+    <table>
+      <thead>
+        <tr>
+          <th>Item</th>
+          <th style="text-align: center;">Qty</th>
+          <th style="text-align: right;">Price</th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr>
+          <td class="item-name">ORGANIC BANANAS</td>
+          <td style="text-align: center;">1</td>
+          <td style="text-align: right;">$0.69</td>
+        </tr>
+        <tr>
+          <td class="item-name">WHOLE MILK 1 GAL</td>
+          <td style="text-align: center;">1</td>
+          <td style="text-align: right;">$4.29</td>
+        </tr>
+        <tr>
+          <td class="item-name">MEIJER WHOLE GRAIN OAT CEREAL 18OZ</td>
+          <td style="text-align: center;">1</td>
+          <td style="text-align: right;">$4.99</td>
+        </tr>
+        <tr>
+          <td class="item-name">FRESH BROCCOLI CROWN</td>
+          <td style="text-align: center;">1</td>
+          <td style="text-align: right;">$2.49</td>
+        </tr>
+        <tr>
+          <td class="item-name">GROUND BEEF 85/15 1LB</td>
+          <td style="text-align: center;">1</td>
+          <td style="text-align: right;">$6.99</td>
+        </tr>
+        <tr>
+          <td class="item-name">SOURDOUGH BREAD</td>
+          <td style="text-align: center;">1</td>
+          <td style="text-align: right;">$3.99</td>
+        </tr>
+        <tr>
+          <td class="item-name">MEIJER BABY SPINACH 5OZ</td>
+          <td style="text-align: center;">1</td>
+          <td style="text-align: right;">$4.49</td>
+        </tr>
+        <tr>
+          <td class="item-name">LARGE EGGS DOZEN</td>
+          <td style="text-align: center;">1</td>
+          <td style="text-align: right;">$3.29</td>
+        </tr>
+      </tbody>
+    </table>
+
+    <div class="totals">
+      <div class="totals-row">
+        <span>Subtotal</span>
+        <span>$31.22</span>
+      </div>
+      <div class="totals-row">
+        <span>Tax</span>
+        <span>$2.19</span>
+      </div>
+      <div class="totals-row savings">
+        <span>Total Savings</span>
+        <span>-$3.40</span>
+      </div>
+      <div class="totals-row grand-total">
+        <span>Total</span>
+        <span>$33.41</span>
+      </div>
+    </div>
+
+    <div class="footer">
+      <p>Thank you for shopping at Meijer!</p>
+      <p>Keep your receipt for your records.<br />
+      Questions? Call 1-800-927-8699 or visit meijer.com</p>
+    </div>
+  </div>
+</body>
+</html>

receiptwitness/tests/fixtures/target_email_receipt.html

@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <title>Target Order Confirmation</title>
+</head>
+<body style="font-family: Arial, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px; color: #333;">
+  <div style="background-color: #cc0000; color: white; padding: 20px; text-align: center;">
+    <img src="https://assets.target.com/email-logo.png" alt="Target" style="height: 40px;">
+    <h1 style="margin: 10px 0; font-size: 24px;">Order Confirmation</h1>
+    <p style="margin: 0;">Thanks for shopping Target Circle!</p>
+  </div>
+
+  <div style="padding: 20px; background-color: #f5f5f5;">
+    <h2 style="color: #cc0000; margin-top: 0;">Target Store #1247 - Riverside</h2>
+    <p style="margin: 5px 0;">4500 River Road<br>Columbus, OH 43220</p>
+    <p style="margin: 5px 0;"><strong>Date:</strong> 03/18/2026</p>
+    <p style="margin: 5px 0;"><strong>Order #:</strong> TGT-2026-0318-9124</p>
+    <p style="margin: 5px 0;"><strong>Confirmation #:</strong> CNF-44772819</p>
+  </div>
+
+  <div style="padding: 20px;">
+    <h3>Items Purchased</h3>
+    <p>Good & Gather Whole Milk 1 Gal $3.89</p>
+    <p>Arborio Rice 2lb bag $6.49</p>
+    <p>Parmesan Wedge 8oz $7.99</p>
+  </div>
+
+  <div style="padding: 20px; background-color: #fff8e1; border-left: 4px solid #cc0000;">
+    <p style="margin: 5px 0;"><strong>Subtotal:</strong> $18.37</p>
+    <p style="margin: 5px 0;"><strong>Tax:</strong> $1.45</p>
+    <p style="margin: 5px 0; color: #cc0000; font-weight: bold; font-size: 18px;">Total: $19.82</p>
+  </div>
+
+  <div style="padding: 15px; margin-top: 15px; background-color: #e8f4e8; border-left: 4px solid #4caf50;">
+    <p style="margin: 0; font-size: 14px; color: #333;">Target Circle offer saved you <strong>$0.30</strong> on this order.</p>
+  </div>
+
+  <div style="padding: 20px; text-align: center; color: #999; font-size: 12px; margin-top: 20px;">
+    <p>Questions? Call Target Guest Services at 1-800-591-3869.</p>
+    <p>Receipt valid for returns within 30 days.</p>
+  </div>
+</body>
+</html>

receiptwitness/tests/test_api/__init__.py

@@ -0,0 +1 @@
+"""Tests for the ReceiptWitness API routes."""

receiptwitness/tests/test_api/test_webhook.py

@@ -0,0 +1,125 @@
+"""Tests for the /inbound/email webhook endpoint."""
+
+import hashlib
+import hmac
+import time
+from unittest.mock import AsyncMock, patch
+
+import pytest
+from fastapi.testclient import TestClient
+
+from receiptwitness.main import app
+
+
+@pytest.fixture
+def client():
+    return TestClient(app)
+
+
+@pytest.fixture
+def mock_redis():
+    redis_mock = AsyncMock()
+    with patch("receiptwitness.api.routes.get_redis", return_value=redis_mock):
+        enqueue_patcher = patch("receiptwitness.api.routes.enqueue_email", new_callable=AsyncMock)
+        with enqueue_patcher as mock_enqueue:
+            yield {"redis": redis_mock, "enqueue": mock_enqueue}
+
+
+def make_signature(signing_key: str, token: str, timestamp: str) -> str:
+    return hmac.new(
+        signing_key.encode(),
+        f"{timestamp}{token}".encode(),
+        hashlib.sha256,
+    ).hexdigest()
+
+
+def valid_form(signing_key: str = "test-secret"):
+    ts = str(int(time.time()))
+    token = "test-token"
+    sig = make_signature(signing_key, token, ts)
+    return {
+        "token": token,
+        "timestamp": ts,
+        "signature": sig,
+        "sender": "sender@example.com",
+        "recipient": "receipts+user123@example.com",
+        "subject": "Your Meijer Receipt",
+        "body-html": "<p>Thank you for shopping at Meijer</p>",
+        "body-plain": "Thank you for shopping at Meijer",
+        "Message-Id": "<msg-001@example.com>",
+    }
+
+
+def test_valid_webhook(client, mock_redis):
+    with patch("receiptwitness.api.routes.settings") as mock_settings:
+        mock_settings.mailgun_webhook_signing_key = "test-secret"
+        response = client.post("/inbound/email", data=valid_form())
+    assert response.status_code == 200
+    assert response.json() == {"status": "queued"}
+    mock_redis["enqueue"].assert_awaited_once()
+
+
+def test_invalid_signature(client, mock_redis):
+    with patch("receiptwitness.api.routes.settings") as mock_settings:
+        mock_settings.mailgun_webhook_signing_key = "test-secret"
+        form = valid_form()
+        form["signature"] = "wrong-signature"
+        response = client.post("/inbound/email", data=form)
+    assert response.status_code == 406
+    assert response.json()["detail"] == "Invalid signature"
+    mock_redis["enqueue"].assert_not_awaited()
+
+
+def test_invalid_recipient_no_plus(client, mock_redis):
+    with patch("receiptwitness.api.routes.settings") as mock_settings:
+        mock_settings.mailgun_webhook_signing_key = "test-secret"
+        form = valid_form()
+        form["recipient"] = "receipts@example.com"  # no plus-address
+        response = client.post("/inbound/email", data=form)
+    assert response.status_code == 406
+    assert response.json()["detail"] == "Invalid recipient"
+    mock_redis["enqueue"].assert_not_awaited()
+
+
+def test_stale_timestamp(client, mock_redis):
+    with patch("receiptwitness.api.routes.settings") as mock_settings:
+        mock_settings.mailgun_webhook_signing_key = "test-secret"
+        ts = str(int(time.time()) - 600)  # 10 min old
+        token = "test-token"
+        sig = make_signature("test-secret", token, ts)
+        form = {
+            "token": token,
+            "timestamp": ts,
+            "signature": sig,
+            "sender": "sender@example.com",
+            "recipient": "receipts+user123@example.com",
+            "subject": "Receipt",
+        }
+        response = client.post("/inbound/email", data=form)
+    assert response.status_code == 406
+    assert response.json()["detail"] == "Invalid signature"
+    mock_redis["enqueue"].assert_not_awaited()
+
+
+def test_invalid_timestamp_returns_406(client, mock_redis):
+    """Empty timestamp should return 406, not 500."""
+    with patch("receiptwitness.api.routes.settings") as mock_settings:
+        mock_settings.mailgun_webhook_signing_key = "test-secret"
+        form = {
+            "token": "test-token",
+            "timestamp": "",
+            "signature": "any-sig",
+            "sender": "sender@example.com",
+            "recipient": "receipts+user123@example.com",
+            "subject": "Receipt",
+        }
+        response = client.post("/inbound/email", data=form)
+    assert response.status_code == 406
+    assert response.json()["detail"] == "Invalid signature"
+    mock_redis["enqueue"].assert_not_awaited()
+
+
+def test_get_inbound_email_returns_405(client):
+    """GET /inbound/email is not allowed."""
+    response = client.get("/inbound/email")
+    assert response.status_code == 405

receiptwitness/tests/test_config.py

@@ -0,0 +1,46 @@
+import pytest
+from receiptwitness.config import ReceiptWitnessSettings
+
+
+def test_valid_config():
+    s = ReceiptWitnessSettings(
+        session_encryption_key="7reF42nmTwbdN21PBoubGp7h_FU8qSimstmlaMLoRK8="
+    )
+    assert s.session_encryption_key
+
+
+def test_missing_session_encryption_key_raises():
+    with pytest.raises(ValueError, match="RW_SESSION_ENCRYPTION_KEY"):
+        ReceiptWitnessSettings(session_encryption_key="")
+
+
+def test_placeholder_session_encryption_key_raises():
+    with pytest.raises(ValueError, match="RW_SESSION_ENCRYPTION_KEY"):
+        ReceiptWitnessSettings(session_encryption_key="change-me-in-production")
+
+
+def test_notifications_enabled_without_resend_key_raises():
+    with pytest.raises(ValueError, match="RW_RESEND_API_KEY"):
+        ReceiptWitnessSettings(
+            session_encryption_key="7reF42nmTwbdN21PBoubGp7h_FU8qSimstmlaMLoRK8=",
+            notifications_enabled=True,
+            resend_api_key="",
+        )
+
+
+def test_notifications_disabled_without_resend_key_ok():
+    s = ReceiptWitnessSettings(
+        session_encryption_key="7reF42nmTwbdN21PBoubGp7h_FU8qSimstmlaMLoRK8=",
+        notifications_enabled=False,
+        resend_api_key="",
+    )
+    assert s.notifications_enabled is False
+
+
+def test_notifications_enabled_with_resend_key_ok():
+    s = ReceiptWitnessSettings(
+        session_encryption_key="7reF42nmTwbdN21PBoubGp7h_FU8qSimstmlaMLoRK8=",
+        notifications_enabled=True,
+        resend_api_key="re_test_1234567890",
+    )
+    assert s.resend_api_key == "re_test_1234567890"

receiptwitness/tests/test_notifications/test_email.py

@@ -0,0 +1,84 @@
+"""Tests for email notifications."""
+
+from unittest.mock import patch
+
+import pytest
+
+
+class TestSendReceiptNotification:
+    @pytest.fixture
+    def mock_resend(self):
+        with patch("receiptwitness.notifications.email.resend") as mock:
+            yield mock
+
+    @pytest.mark.asyncio
+    async def test_sends_email_with_correct_params(self, mock_resend):
+        from receiptwitness.notifications.email import send_receipt_notification
+
+        with (
+            patch("receiptwitness.notifications.email.settings") as mock_settings,
+            patch(
+                "receiptwitness.notifications.email.asyncio.to_thread",
+                new=lambda fn, *args, **kwargs: fn(*args, **kwargs),
+            ),
+        ):
+            mock_settings.notifications_enabled = True
+            mock_settings.resend_api_key = "re_testkey_123"
+            mock_settings.notification_email_from = "noreply@test.com"
+
+            await send_receipt_notification(
+                user_email="user@example.com",
+                store_name="Meijer",
+                item_count=5,
+                total=42.99,
+                purchase_date="2026-03-28",
+            )
+
+        mock_resend.Emails.send.assert_called_once_with(
+            {
+                "from": "noreply@test.com",
+                "to": ["user@example.com"],
+                "subject": "Receipt processed: Meijer - $42.99",
+                "html": (
+                    "<p>Your receipt from <strong>Meijer</strong> on "
+                    "2026-03-28 has been processed.</p>"
+                    "<p>5 items, total: $42.99</p>"
+                ),
+            }
+        )
+
+    @pytest.mark.asyncio
+    async def test_skips_when_disabled(self, mock_resend):
+        from receiptwitness.notifications.email import send_receipt_notification
+
+        with patch("receiptwitness.notifications.email.settings") as mock_settings:
+            mock_settings.notifications_enabled = False
+            mock_settings.resend_api_key = "re_testkey_123"
+
+            await send_receipt_notification(
+                user_email="user@example.com",
+                store_name="Meijer",
+                item_count=5,
+                total=42.99,
+                purchase_date="2026-03-28",
+            )
+
+        mock_resend.Emails.send.assert_not_called()
+
+    @pytest.mark.asyncio
+    async def test_skips_when_api_key_empty(self, mock_resend):
+        from receiptwitness.notifications.email import send_receipt_notification
+
+        with patch("receiptwitness.notifications.email.settings") as mock_settings:
+            mock_settings.notifications_enabled = True
+            mock_settings.resend_api_key = ""
+
+            await send_receipt_notification(
+                user_email="user@example.com",
+                store_name="Meijer",
+                item_count=5,
+                total=42.99,
+                purchase_date="2026-03-28",
+            )
+
+        mock_resend.Emails.send.assert_not_called()

receiptwitness/tests/test_parsers/test_email/test_detector.py

@@ -0,0 +1,49 @@
+"""Tests for retailer detector."""
+
+from receiptwitness.parsers.email.base import EmailReceipt
+from receiptwitness.parsers.email.detector import detect_retailer
+
+
+def test_detect_meijer():
+    email = EmailReceipt(
+        sender="receipts@meijer.com",
+        recipient="user@example.com",
+        subject="Your Receipt",
+    )
+    assert detect_retailer(email) == "meijer"
+
+
+def test_detect_kroger():
+    email = EmailReceipt(
+        sender="noreply@email.kroger.com",
+        recipient="user@example.com",
+        subject="Your Receipt",
+    )
+    assert detect_retailer(email) == "kroger"
+
+
+def test_detect_target():
+    email = EmailReceipt(
+        sender="Target <receipts@target.com>",
+        recipient="user@example.com",
+        subject="Your Receipt",
+    )
+    assert detect_retailer(email) == "target"
+
+
+def test_detect_unknown():
+    email = EmailReceipt(
+        sender="noreply@walmart.com",
+        recipient="user@example.com",
+        subject="Your Receipt",
+    )
+    assert detect_retailer(email) is None
+
+
+def test_detect_case_insensitive():
+    email = EmailReceipt(
+        sender="Receipts@MEIJER.COM",
+        recipient="user@example.com",
+        subject="Your Receipt",
+    )
+    assert detect_retailer(email) == "meijer"