WIP: Electron asset path and renderer build fixes

- Configure Vite renderer build for relative asset paths and explicit asset directory
- Remove baseURLForDataURL (caused Electron crash)
- Add debug logging for asset/network requests
- App now loads and assets are found, but some stylesheets may still be missing

Next: investigate CSS chunking/code splitting for Electron reliability.

.gitignore

@@ -54,5 +54,5 @@ build_logs/
 # PWA icon files generated by capacitor-assets
 icons
 
-
+*.log
 android/app/src/main/res/