Fix capacitor build: Implement proper backend connectivity and authentication

- Update BACKEND_BASE_URL to plugincompass.com:9445
- Add comprehensive authentication system (login, signup, logout)
- Implement JWT token management with automatic refresh
- Add plugin/app management API (CRUD operations)
- Add session management for chat/builder
- Update mobile UI with real backend integration
- Add user account and usage tracking
- Enable plugin loading and editing from backend
- Fix module type for ES6 support

android-app/package.json

@@ -2,6 +2,7 @@
   "name": "plugin-compass-android",
   "version": "0.1.0",
   "private": true,
+  "type": "module",
   "scripts": {
     "prepare-ui": "node ./scripts/sync-ui.js",
     "build": "npm run prepare-ui && npx cap sync android",