fix: align frontend image tag with baked VITE_BUILD version

PR and candidate builds now push with the app-v* tag at build time,
ensuring VITE_BUILD inside the image always matches its Docker tag.
Promote step reads the version from the image instead of generating
a new run_number-based tag.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.github/workflows/build-app-candidate.yml

@@ -48,7 +48,9 @@ jobs:
         with:
           context: ./client
           push: true
-          tags: ${{ steps.meta.outputs.tags }}
+          tags: |
+            ${{ steps.meta.outputs.tags }}
+            rmcampos/tasknote-app:${{ steps.version.outputs.tag }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=registry,ref=rmcampos/tasknote-app:buildcache
           cache-to: type=registry,ref=rmcampos/tasknote-app:buildcache,mode=max

.github/workflows/ci-main-frontend.yml

@@ -31,14 +31,6 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Generate version tag
-        id: version
-        run: |
-          DATE=$(date +'%Y.%m.%d')
-          TAG="app-v${DATE}.${{ github.run_number }}"
-          echo "tag=${TAG}" >> $GITHUB_OUTPUT
-          echo "Generated tag: ${TAG}"
-
       - name: Set up Docker Buildx
         run: docker buildx inspect --bootstrap
 
@@ -63,11 +55,24 @@ jobs:
           fi
           echo "tag=${PR_NUMBER}" >> $GITHUB_OUTPUT
 
+      - name: Extract version from image
+        id: version
+        run: |
+          docker pull rmcampos/tasknote-app:${{ steps.find_pr.outputs.tag }}
+          VITE_BUILD=$(docker inspect rmcampos/tasknote-app:${{ steps.find_pr.outputs.tag }} \
+            --format '{{ range .Config.Env }}{{ println . }}{{ end }}' \
+            | grep '^VITE_BUILD=' | cut -d= -f2)
+          if [ -z "$VITE_BUILD" ]; then
+            echo "Could not extract VITE_BUILD from image" >&2
+            exit 1
+          fi
+          echo "tag=${VITE_BUILD}" >> $GITHUB_OUTPUT
+          echo "Extracted version: ${VITE_BUILD}"
+
       - name: Promote Docker image
         run: |
           docker buildx imagetools create \
             --tag rmcampos/tasknote-app:latest \
-            --tag rmcampos/tasknote-app:${{ steps.version.outputs.tag }} \
             rmcampos/tasknote-app:${{ steps.find_pr.outputs.tag }}
 
       - name: Create and push Git tag

.github/workflows/ci-pr-frontend.yml

@@ -109,7 +109,9 @@ jobs:
         with:
           context: ./client
           push: true
-          tags: ${{ steps.meta.outputs.tags }}
+          tags: |
+            ${{ steps.meta.outputs.tags }}
+            rmcampos/tasknote-app:${{ steps.version.outputs.tag }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=registry,ref=rmcampos/tasknote-app:buildcache
           cache-to: type=registry,ref=rmcampos/tasknote-app:buildcache,mode=max