feat(desktop): update notifications and store-readiness fixes (#6215)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

.github/workflows/pull-request.yml

@@ -114,6 +114,17 @@ jobs:
       - uses: actions/checkout@v7
       - name: Validate store listing metadata lengths
         run: python3 scripts/check-metadata-length.py
+      # Flathub/AppStream needs a <release> entry for the version being shipped; a stale
+      # <releases> block degrades (or fails) the Flathub listing. Fails the PR that bumps
+      # VERSION_NAME_BASE until the matching entry is added.
+      - name: Require AppStream release entry for current version
+        run: |
+          VERSION=$(grep '^VERSION_NAME_BASE=' config.properties | cut -d'=' -f2)
+          METAINFO=desktopApp/packaging/linux/org.meshtastic.MeshtasticDesktop.metainfo.xml
+          if ! grep -q "version=\"$VERSION\"" "$METAINFO"; then
+            echo "::error file=$METAINFO::Missing <release version=\"$VERSION\"> entry. Add it alongside the VERSION_NAME_BASE bump."
+            exit 1
+          fi
 
   # 2. VALIDATION & BUILD: Delegate to reusable-check.yml
   # We disable coverage and desktop builds for PRs to keep feedback fast