fix(tauri): use raw __TAURI_INTERNALS__ invoke, fix dynamic import on Android

Root cause: dynamic import('@tauri-apps/plugin-opener') silently fails on
Android Tauri WebView because the module resolution path for @tauri-apps/api
(plugin dependency) differs from npm expectations in the bundled context.

Rewrote tauri.ts to use window.__TAURI_INTERNALS__.invoke() directly:
- openUrl() → invoke('plugin:opener|open_url', {url})
- setupDeepLinkHandler() → invoke('plugin:deep-link|get_current')
- Warm-start listener still uses import('@tauri-apps/api/event') for
  deep-link://new-url events (bundled as separate chunk by Vite)
- Added @tauri-apps/api as direct dependency

Also kept withGlobalTauri: true (needed for __TAURI_INTERNALS__ injection)
but reverted APK frontendDist back to bundled React app (../web/dist)
since redirect-to-live-web approach was unreliable.

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -15,6 +15,7 @@
     "packages/*"
   ],
   "dependencies": {
+    "@tauri-apps/api": "2.11.0",
     "@tauri-apps/plugin-deep-link": "2.4.9",
     "@tauri-apps/plugin-opener": "2.5.4"
   }