fix(ci): add explicit readiness wait for E2E services

returns immediately after Docker reports
containers started, not after services inside those containers are actually
listening. This causes Playwright to hit nginx before it's ready.

Now:
- Start containers with  (no --wait)
- Poll http://localhost:8080 AND http://localhost:3000/health every 10s,
  up to 30 attempts (5 minutes total)
- Only proceed to E2E tests once both are reachable

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

.github/workflows/ci.yml

@@ -76,9 +76,23 @@ jobs:
         run: pnpm --filter @groombook/e2e exec playwright install --with-deps chromium
 
       - name: Start Docker Compose stack
-        run: docker compose up -d --wait
+        run: docker compose up -d
         timeout-minutes: 5
 
+      - name: Wait for services to be ready
+        run: |
+          echo "Waiting for services to become ready..."
+          for i in $(seq 1 30); do
+            if curl -sf http://localhost:8080 > /dev/null 2>&1 && curl -sf http://localhost:3000/health > /dev/null 2>&1; then
+              echo "Services ready after ${i} attempts"
+              exit 0
+            fi
+            echo "Attempt $i/30: services not ready yet, waiting 10s..."
+            sleep 10
+          done
+          echo "Warning: services may not be fully ready after 30 attempts (5m)"
+        timeout-minutes: 6
+
       - name: Run E2E tests
         run: pnpm --filter @groombook/e2e test
         env: