flutter(rider): rebuild lib on Cubit/Bloc + Tripz backend (core + auth slice)

- keep store identity (com.mobileapp.store.ride, shorebird, firebase, fonts); old lib -> lib_old_getx
- core: config/di/router(go_router)/theme/api_client(dio+tenant+bearer)/token_store(secure)
- auth: repo + AuthCubit + OTP phone/otp screens; home: flutter_map (OSM placeholder, انطلق TODO)
- android usesCleartextTraffic=true for http API; maps=flutter_map (no Google), state=Cubit

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/rider/lib/controller/firebase/access_token.dart

@@ -1,50 +0,0 @@
-import 'dart:convert';
-import 'package:googleapis_auth/auth_io.dart';
-
-class AccessTokenManager {
-  static final AccessTokenManager _instance = AccessTokenManager._internal();
-  late final String serviceAccountJsonKey;
-  AccessToken? _accessToken;
-  DateTime? _expiryDate;
-
-  AccessTokenManager._internal();
-
-  factory AccessTokenManager(String jsonKey) {
-    if (_instance._isServiceAccountKeyInitialized()) {
-      // Prevent re-initialization
-      return _instance;
-    }
-    _instance.serviceAccountJsonKey = jsonKey;
-    return _instance;
-  }
-
-  bool _isServiceAccountKeyInitialized() {
-    try {
-      serviceAccountJsonKey; // Access to check if initialized
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  Future<String> getAccessToken() async {
-    if (_accessToken != null && DateTime.now().isBefore(_expiryDate!)) {
-      return _accessToken!.data;
-    }
-    try {
-      final serviceAccountCredentials = ServiceAccountCredentials.fromJson(
-          json.decode(serviceAccountJsonKey));
-      final client = await clientViaServiceAccount(
-        serviceAccountCredentials,
-        ['https://www.googleapis.com/auth/firebase.messaging'],
-      );
-
-      _accessToken = client.credentials.accessToken;
-      _expiryDate = client.credentials.accessToken.expiry;
-      client.close();
-      return _accessToken!.data;
-    } catch (e) {
-      throw Exception('Failed to obtain access token');
-    }
-  }
-}