chore: Clean up workflows and trigger unified release

- Remove conflicting unified-build.yml workflow
- Disable desktop-ci.yml and component-tests.yml
- Keep only unified-release.yml active for all builds
- Test trigger commit to verify workflow execution

Now only unified-release.yml will run on push to main:
✅ Semantic versioning
✅ Cross-platform builds (Linux, Windows, macOS, Android, Backend)
✅ Unified GitHub release
✅ No workflow conflicts

.github/workflows/desktop-ci.yml

@@ -1,10 +1,6 @@
-name: Desktop CI
+name: Desktop CI (DISABLED - use unified-release.yml)
 
 on:
-  push:
-    branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
   workflow_dispatch:
 
 env: