fix: pass commit short hash as version to UI sidebar

Add VITE_APP_VERSION build arg to UI Dockerfile, pass short SHA from
CI docker build step. vite.config.ts truncates to 7 chars so both
CI build and Docker build produce consistent short hashes.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -53,7 +53,7 @@ jobs:
           npm run build
         env:
           REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
-          VITE_APP_VERSION: ${{ github.ref_name }}@${{ github.sha }}
+          VITE_APP_VERSION: ${{ github.sha }}
 
       - name: Build and Test
         run: mvn clean verify -DskipITs -U --batch-mode
@@ -112,9 +112,11 @@ jobs:
           for TAG in $IMAGE_TAGS; do
             TAGS="$TAGS -t gitea.siegeln.net/cameleer/cameleer3-server-ui:$TAG"
           done
+          SHORT_SHA=$(echo "${{ github.sha }}" | cut -c1-7)
           docker buildx build --platform linux/amd64 \
             -f ui/Dockerfile \
             --build-arg REGISTRY_TOKEN="$REGISTRY_TOKEN" \
+            --build-arg VITE_APP_VERSION="$SHORT_SHA" \
             $TAGS \
             --cache-from type=registry,ref=gitea.siegeln.net/cameleer/cameleer3-server-ui:buildcache \
             --cache-to type=registry,ref=gitea.siegeln.net/cameleer/cameleer3-server-ui:buildcache,mode=max \

ui/Dockerfile

@@ -14,7 +14,9 @@ RUN echo "//gitea.siegeln.net/api/packages/cameleer/npm/:_authToken=${REGISTRY_T
     rm -f .npmrc
 
 ARG VITE_ENV_NAME=PRODUCTION
+ARG VITE_APP_VERSION=dev
 ENV VITE_ENV_NAME=$VITE_ENV_NAME
+ENV VITE_APP_VERSION=$VITE_APP_VERSION
 RUN npm run build
 
 FROM nginx:1.27-alpine

ui/vite.config.ts

@@ -7,7 +7,7 @@ const apiTarget = process.env.VITE_API_TARGET || 'http://localhost:8081';
 
 export default defineConfig({
   define: {
-    __APP_VERSION__: JSON.stringify(process.env.VITE_APP_VERSION || 'dev'),
+    __APP_VERSION__: JSON.stringify((process.env.VITE_APP_VERSION || 'dev').slice(0, 7)),
   },
   plugins: [react()],
   server: {