Fix Android emulation and runtime errors for both apps

- Add emulator management scripts (start/stop/status) with logging to /tmp
- Fix AVD config: enable GPU acceleration, increase RAM to 4096M
- Update babel-preset-expo 9.3.2 -> 55.0.8 to fix RN 0.83 private methods
  support without breaking polyfills
- Add Android package name to expo app.json
- Fix Flutter startup crash: call WidgetsFlutterBinding.ensureInitialized
  before accessing platform channels in db init

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

todo-flutter/src/todo/main.cljd

@@ -51,6 +51,7 @@
         .child (m/Icon m/Icons.add)))))
 
 (defn main []
+  (m/WidgetsFlutterBinding.ensureInitialized)
   (await (db/init-db!))
   (let [todos (await (db/load-todos!))]
     (when todos