feat: 重构充值提现功能，添加冷钱包管理

后端改动：
- 新增冷钱包管理模块（ColdWallet实体、Mapper、Service、Controller）
- 充值流程：创建订单→显示钱包地址→用户确认打款→管理员审核
- 提现流程：用户输入地址和联系方式→冻结余额→管理员审核
- OrderFund新增字段：walletId, walletAddress, withdrawContact, payTime, confirmTime

前端改动（monisuo-admin）：
- 新增冷钱包管理页面（wallets.vue）
- 优化订单管理页面，支持新的状态流转
- 添加调试日志帮助排查登录问题

前端改动（flutter_monisuo）：
- 更新OrderFund模型支持新字段
- 充值成功后显示钱包地址弹窗
- 提现时收集提现地址和联系方式
- 新增资金订单页面

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

flutter_monisuo/lib/data/services/fund_service.dart

@@ -8,7 +8,23 @@ class FundService {
 
   FundService(this._client);
 
+  /// 获取默认钱包地址
+  Future<ApiResponse<ColdWallet>> getDefaultWallet() async {
+    final response = await _client.get<Map<String, dynamic>>(
+      ApiEndpoints.defaultWallet,
+    );
+
+    if (response.success && response.data != null) {
+      return ApiResponse.success(
+        ColdWallet.fromJson(response.data!),
+        response.message,
+      );
+    }
+    return ApiResponse.fail(response.message ?? '获取钱包地址失败');
+  }
+
   /// 申请充值
+  /// 返回包含 orderNo, amount, status, walletAddress, walletNetwork 的信息
   Future<ApiResponse<Map<String, dynamic>>> deposit({
     required String amount,
     String? remark,
@@ -22,15 +38,27 @@ class FundService {
     );
   }
 
+  /// 用户确认已打款
+  Future<ApiResponse<void>> confirmPay(String orderNo) async {
+    return _client.post<void>(
+      ApiEndpoints.confirmPay,
+      data: {'orderNo': orderNo},
+    );
+  }
+
   /// 申请提现
   Future<ApiResponse<Map<String, dynamic>>> withdraw({
     required String amount,
+    required String withdrawAddress,
+    String? withdrawContact,
     String? remark,
   }) async {
     return _client.post<Map<String, dynamic>>(
       ApiEndpoints.withdraw,
       data: {
         'amount': amount,
+        'withdrawAddress': withdrawAddress,
+        if (withdrawContact != null) 'withdrawContact': withdrawContact,
         if (remark != null) 'remark': remark,
       },
     );
@@ -62,19 +90,9 @@ class FundService {
     );
   }
 
-  /// 获取充提订单详情
-  Future<ApiResponse<OrderFund>> getOrderDetail(String orderNo) async {
-    final response = await _client.get<Map<String, dynamic>>(
-      ApiEndpoints.fundOrders,
-      queryParameters: {'orderNo': orderNo},
-    );
-
-    if (response.success && response.data != null) {
-      return ApiResponse.success(
-        OrderFund.fromJson(response.data!),
-        response.message,
-      );
-    }
-    return ApiResponse.fail(response.message ?? '获取订单详情失败');
+  /// 解析充提记录列表
+  List<OrderFund> parseOrderList(List<dynamic>? list) {
+    if (list == null) return [];
+    return list.map((e) => OrderFund.fromJson(e as Map<String, dynamic>)).toList();
   }
 }