Add offline meal journal and secure sync

mobile/lib/services/auth_service.dart

@@ -119,6 +119,23 @@ class AuthService {
     return response;
   }
 
+  Future<http.Response> authenticatedGet(Uri uri) async {
+    _requireApi();
+    _accessToken ??= await _storage.read(key: _accessKey);
+    if (_accessToken == null && !await _refreshSession()) {
+      throw const AuthException('سجّل الدخول لمزامنة بياناتك.');
+    }
+    var response = await _client
+        .get(uri, headers: _bearerHeaders(_accessToken!))
+        .timeout(const Duration(seconds: 30));
+    if (response.statusCode == 401 && await _refreshSession()) {
+      response = await _client
+          .get(uri, headers: _bearerHeaders(_accessToken!))
+          .timeout(const Duration(seconds: 30));
+    }
+    return response;
+  }
+
   Future<bool> _refreshSession() async {
     final activeRefresh = _refreshing;
     if (activeRefresh != null) return activeRefresh;