fix(ci): add image tag fallback logic and code style fixes

- Add fallback to 'latest' tag when build fails
- Add fallback mechanism when pulling specific image tag fails
- Fix code style: move opening brace in ObjectInfo
- Remove unused comment in ObjectStorage

.gitea/workflows/build-image.yml

@@ -832,8 +832,13 @@ jobs:
           DEPLOYMENT_HOST="${{ env.DEPLOYMENT_HOST }}"
           REGISTRY="${{ env.REGISTRY }}"
           IMAGE_NAME="${{ env.IMAGE_NAME }}"
+          BUILD_RESULT="${{ needs.build.result }}"
           IMAGE_TAG="${{ needs.build.outputs.image_tag || 'latest' }}"
           
+          if [ "$BUILD_RESULT" != "success" ]; then
+            IMAGE_TAG="latest"
+          fi
+          
           if [ -z "$IMAGE_TAG" ] || [ "$IMAGE_TAG" = "null" ]; then
             IMAGE_TAG="latest"
           fi
@@ -863,10 +868,22 @@ jobs:
               --password-stdin || echo "⚠️  Registry login failed, continuing..."
             
             echo "📥 Pulling image ${FULL_IMAGE}..."
-            docker pull ${FULL_IMAGE} || {
-              echo "❌ Failed to pull image ${FULL_IMAGE}"
-              exit 1
-            }
+            if ! docker pull ${FULL_IMAGE}; then
+              if [ "${IMAGE_TAG}" != "latest" ]; then
+                echo "⚠️  Failed to pull ${FULL_IMAGE}, falling back to :latest"
+                IMAGE_TAG="latest"
+                FULL_IMAGE="${REGISTRY}/${IMAGE_NAME}:${IMAGE_TAG}"
+                if docker pull ${FULL_IMAGE}; then
+                  echo "ℹ️ Using fallback image ${FULL_IMAGE}"
+                else
+                  echo "❌ Failed to pull fallback image ${FULL_IMAGE}"
+                  exit 1
+                fi
+              else
+                echo "❌ Failed to pull image ${FULL_IMAGE}"
+                exit 1
+              fi
+            fi
             
             # If docker-compose.yml doesn't exist, it will be created from repo
             if [ ! -f docker-compose.yml ]; then