Add app version display in Footer and implement version API endpoint

- Updated Footer.vue to show the application version for logged-in users.
- Added a new API endpoint to return the application version from package.json.
- Enhanced code-analysis.yml to require package version changes for main PRs.

.gitea/workflows/code-analysis.yml

@@ -31,6 +31,10 @@ jobs:
           node -v
           npm -v
 
+      - name: Require package version change for main PRs
+        if: github.event_name == 'pull_request' && github.base_ref == 'main'
+        run: scripts/check-package-version-changed.sh origin/main
+
       - name: gitleaks (Secrets Scanning)
         run: |
           # Try to get the latest release asset URL