👷(CI) add mcp jobs

Wire up the corresponding build-and-push-mcp jobs
in the Docker Hub and GHCR workflows.

.github/workflows/docker-hub.yml

@@ -60,11 +60,25 @@ jobs:
       should_push: ${{ github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'preview') }}
       docker_user: 1001:127
 
+  build-and-push-mcp:
+    uses: ./.github/workflows/docker-publish.yml
+    permissions:
+      contents: read
+    secrets: inherit
+    with:
+      image_name: lasuite/impress-mcp
+      context: .
+      file: src/frontend/servers/mcp/Dockerfile
+      target: mcp
+      should_push: ${{ github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'preview') }}
+      docker_user: 1001:127
+
   notify-argocd:
     needs:
       - build-and-push-backend
       - build-and-push-frontend
       - build-and-push-y-provider
+      - build-and-push-mcp
     runs-on: ubuntu-latest
     if: github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'preview')
     steps: