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/earnings/data/earnings_api.dart

@@ -0,0 +1,16 @@
+import '../../../core/network/api_client.dart';
+import '../../../core/network/api_response.dart';
+import 'earnings_models.dart';
+
+/// 收益接口，对应后端 `/api/worker-app/earnings/summary`。
+class EarningsApi {
+  EarningsApi(this._client);
+
+  final ApiClient _client;
+
+  Future<ApiResponse<EarningsSummary>> summary() =>
+      _client.get<EarningsSummary>(
+        '/worker-app/earnings/summary',
+        parse: (d) => EarningsSummary.fromJson((d as Map).cast<String, dynamic>()),
+      );
+}

lib/features/earnings/data/earnings_models.dart

@@ -0,0 +1,94 @@
+import '../../../core/utils/id_util.dart';
+
+/// 收益流水，对应后端 `earningsSummary().data.transactions[]`。
+///
+/// 说明：后端没有提现记录来源，因此实际只会返回 `type == 'earning'` 的入账流水。
+class EarningTransaction {
+  const EarningTransaction({
+    required this.id,
+    required this.type,
+    required this.title,
+    required this.subtitle,
+    required this.amount,
+    required this.status,
+    required this.icon,
+  });
+
+  final String id;
+
+  /// earning | withdrawal
+  final String type;
+  final String title;
+  final String subtitle;
+  final double amount;
+
+  /// settled | pending | completed
+  final String status;
+  final String icon;
+
+  bool get isWithdrawal => type == 'withdrawal';
+
+  String get statusText => switch (status) {
+    'settled' => '已结算',
+    'pending' => '处理中',
+    'completed' => '已完成',
+    _ => status,
+  };
+
+  factory EarningTransaction.fromJson(Map<String, dynamic> json) =>
+      EarningTransaction(
+        id: json['id'] as String? ?? '',
+        type: json['type'] as String? ?? 'earning',
+        title: json['title'] as String? ?? '',
+        subtitle: json['subtitle'] as String? ?? '',
+        amount: toDoubleOr(json['amount'], 0),
+        status: json['status'] as String? ?? 'settled',
+        icon: json['icon'] as String? ?? '',
+      );
+}
+
+/// 收益汇总，对应 `GET /api/worker-app/earnings/summary`。
+class EarningsSummary {
+  const EarningsSummary({
+    required this.totalBalance,
+    required this.withdrawableAmount,
+    required this.monthlyEarnings,
+    required this.weeklyTrend,
+    required this.transactions,
+  });
+
+  final double totalBalance;
+  final double withdrawableAmount;
+  final double monthlyEarnings;
+
+  /// 近 7 天每日收益（index 6 = 今天）。
+  final List<double> weeklyTrend;
+  final List<EarningTransaction> transactions;
+
+  /// 柱状图高度百分比：以 7 日峰值为 100%，全 0 时给一个最小可见高度。
+  List<double> get trendPercents {
+    final max = weeklyTrend.isEmpty
+        ? 0.0
+        : weeklyTrend.reduce((a, b) => a > b ? a : b);
+    if (max <= 0) return List.filled(weeklyTrend.length, 8);
+    return weeklyTrend.map((v) => (v / max * 100).clamp(8, 100).toDouble()).toList();
+  }
+
+  factory EarningsSummary.fromJson(Map<String, dynamic> json) => EarningsSummary(
+    totalBalance: toDoubleOr(json['totalBalance'], 0),
+    withdrawableAmount: toDoubleOr(json['withdrawableAmount'], 0),
+    monthlyEarnings: toDoubleOr(json['monthlyEarnings'], 0),
+    weeklyTrend:
+        (json['weeklyTrend'] as List?)?.map((e) => toDoubleOr(e, 0)).toList() ??
+        const [0, 0, 0, 0, 0, 0, 0],
+    transactions:
+        (json['transactions'] as List?)
+            ?.map(
+              (e) => EarningTransaction.fromJson(
+                (e as Map).cast<String, dynamic>(),
+              ),
+            )
+            .toList() ??
+        const [],
+  );
+}