feat: 完成智能电网电工端 Flutter 应用初始化

创建完整的 Flutter 项目结构，包含 Android 和 iOS 平台配置、核心网络层、路由、状态管理及业务模块（订单、收益、认证），适配原 uni-app 项目功能逻辑

lib/features/order/data/order_api.dart

@@ -0,0 +1,46 @@
+import '../../../core/network/api_client.dart';
+import '../../../core/network/api_response.dart';
+import 'order_models.dart';
+
+/// 订单接口，对应后端 `/api/worker-app/orders*`。
+class OrderApi {
+  OrderApi(this._client);
+
+  final ApiClient _client;
+
+  /// 订单池：四类未被接单的订单合并。
+  Future<ApiResponse<List<Order>>> pool() => _client.get<List<Order>>(
+    '/worker-app/orders/pool',
+    parse: _parseList,
+  );
+
+  /// 我的订单。`status` 传 `pending` / `completed`，留空取全部。
+  Future<ApiResponse<List<Order>>> myOrders({String? status}) =>
+      _client.get<List<Order>>(
+        '/worker-app/orders',
+        query: {'status': status},
+        parse: _parseList,
+      );
+
+  /// 订单详情。
+  Future<ApiResponse<Order>> detail(String source, int id) =>
+      _client.get<Order>(
+        '/worker-app/orders/$source/$id',
+        parse: (d) => Order.fromJson((d as Map).cast<String, dynamic>()),
+      );
+
+  /// 接单。订单被他人接走时后端返回 409。
+  Future<ApiResponse<void>> grab(String source, int id) =>
+      _client.post<void>('/worker-app/orders/$source/$id/grab');
+
+  /// 完成订单。非本人订单后端返回 403。
+  Future<ApiResponse<void>> complete(String source, int id) =>
+      _client.put<void>('/worker-app/orders/$source/$id/complete');
+
+  static List<Order> _parseList(dynamic data) {
+    final map = (data as Map).cast<String, dynamic>();
+    return (map['list'] as List? ?? const [])
+        .map((e) => Order.fromJson((e as Map).cast<String, dynamic>()))
+        .toList();
+  }
+}

lib/features/order/data/order_models.dart

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+import '../../../core/utils/id_util.dart';
+
+/// 统一订单视图，对应后端 `WorkerAppService.toOrderView()`。
+///
+/// `id` 形如 `repair-12` / `install-5`，`source` 为四类来源之一。
+class Order {
+  const Order({
+    required this.id,
+    required this.source,
+    required this.status,
+    required this.jobId,
+    required this.title,
+    required this.type,
+    required this.amount,
+    required this.distance,
+    required this.schedule,
+    required this.description,
+    required this.customerName,
+    required this.customerPhone,
+    required this.photos,
+    required this.address,
+    required this.laborFee,
+    required this.materialFee,
+    required this.estimatedDuration,
+  });
+
+  /// `repair-12`
+  final String id;
+
+  /// repair | install | maintenance | survey
+  final String source;
+
+  final int status;
+
+  /// 业务单号（repairNo / installNo / maintenanceNo / surveyNo）
+  final String jobId;
+
+  final String title;
+
+  /// urgent | standard | regular
+  final String type;
+
+  final double amount;
+  final double distance;
+  final String schedule;
+  final String description;
+  final String customerName;
+  final String customerPhone;
+  final List<String> photos;
+  final String address;
+  final double laborFee;
+  final double materialFee;
+  final String estimatedDuration;
+
+  /// 来源中文名，用于收益明细副标题等场景。
+  String get sourceName => switch (source) {
+    'repair' => '家庭电路维修',
+    'install' => '设备安装',
+    'maintenance' => '设备维保',
+    'survey' => '现场勘察',
+    _ => '服务订单',
+  };
+
+  /// 列表页类型标签：紧急呼叫 / 标准预约 / 常规巡检。
+  String get listTypeText => switch (type) {
+    'urgent' => '紧急呼叫',
+    'standard' => '标准预约',
+    _ => '常规巡检',
+  };
+
+  /// 详情页类型标签：紧急 / 标准 / 常规。
+  String get detailTypeText => switch (type) {
+    'urgent' => '紧急',
+    'standard' => '标准',
+    _ => '常规',
+  };
+
+  /// 客户头像占位文字：后端无头像字段，用姓名首字（与「我的」页一致）。
+  String get customerAvatarText => customerName.isEmpty
+      ? '客'
+      : String.fromCharCode(customerName.runes.first);
+
+  /// 卡片上展示的订单号：后端 `id` 前缀即来源，取 `jobId` 更贴近源 `#EL-8821` 的观感。
+  String get displayNo => jobId.isNotEmpty ? jobId : id;
+
+  /// 后端接口里的数字主键：`repair-12` → 12。
+  int get intId {
+    final idx = id.lastIndexOf('-');
+    return toIntOr(idx >= 0 ? id.substring(idx + 1) : id, 0);
+  }
+
+  factory Order.fromJson(Map<String, dynamic> json) => Order(
+    id: json['id'] as String? ?? '',
+    source: json['source'] as String? ?? '',
+    status: toIntOr(json['status'], 0),
+    jobId: json['jobId'] as String? ?? '',
+    title: json['title'] as String? ?? '',
+    type: json['type'] as String? ?? 'regular',
+    amount: toDoubleOr(json['amount'], 0),
+    distance: toDoubleOr(json['distance'], 0),
+    schedule: json['schedule'] as String? ?? '',
+    description: json['description'] as String? ?? '',
+    customerName: json['customerName'] as String? ?? '',
+    customerPhone: json['customerPhone'] as String? ?? '',
+    photos:
+        (json['photos'] as List?)?.map((e) => e.toString()).toList() ??
+        const [],
+    address: json['address'] as String? ?? '',
+    laborFee: toDoubleOr(json['laborFee'], 0),
+    materialFee: toDoubleOr(json['materialFee'], 0),
+    estimatedDuration: json['estimatedDuration'] as String? ?? '',
+  );
+}