fix: add workspace config and remove --filter for extracted repo

The extracted repo is no longer a monorepo — pnpm --filter doesn't match
the root package. Add pnpm-workspace.yaml for packages/types, add
@groombook/types as workspace dep, and run commands directly at root.

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

.github/workflows/ci.yml

@@ -32,10 +32,10 @@ jobs:
         run: pnpm install --frozen-lockfile
 
       - name: Typecheck
-        run: pnpm --filter @groombook/web typecheck
+        run: pnpm typecheck
 
       - name: Lint
-        run: pnpm --filter @groombook/web lint
+        run: pnpm lint
 
   test:
     name: Test
@@ -56,7 +56,7 @@ jobs:
         run: pnpm install --frozen-lockfile
 
       - name: Run tests
-        run: pnpm --filter @groombook/web test
+        run: pnpm test
 
   docker:
     name: Build & Push Docker Image