fix(ci): use docker metadata action and add debug step

- Replace custom bash script with docker/metadata-action
- Add directory verification step for debugging
- Fix tag format issues causing build failures
- Properly handle GitHub Actions output variables

Author: dnmll

.github/workflows/build-push-images.yml

@@ -123,6 +123,14 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Verify service directory
+        run: |
+          echo "Current directory: $(pwd)"
+          echo "Checking for service directory..."
+          ls -la src/${{ matrix.service }}/
+          echo "Dockerfile exists:"
+          ls -la src/${{ matrix.service }}/Dockerfile
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3