fix(mobile-app): fix avatar and wallet address issues after mnemonic recovery

- Mining page: use accountService to load avatar (consistent with profile page)
- Account recovery: fetch and save wallet addresses after successful recovery
- Account recovery: set isWalletReady=true to skip backup mnemonic page
- Deposit service: read wallet addresses from local storage or fetch from /user/wallet API

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

frontend/mobile-app/lib/core/di/injection_container.dart

@@ -40,7 +40,8 @@ final referralServiceProvider = Provider<ReferralService>((ref) {
 // Deposit Service Provider
 final depositServiceProvider = Provider<DepositService>((ref) {
   final apiClient = ref.watch(apiClientProvider);
-  return DepositService(apiClient: apiClient);
+  final secureStorage = ref.watch(secureStorageProvider);
+  return DepositService(apiClient: apiClient, secureStorage: secureStorage);
 });
 
 // Override provider with initialized instance

frontend/mobile-app/lib/core/services/account_service.dart

@@ -702,6 +702,22 @@ class AccountService {
         value: 'true',
       );
 
+      // 获取并保存钱包地址
+      debugPrint('$_tag recoverByMnemonic() - 获取钱包地址');
+      try {
+        final walletInfo = await getWalletInfo(result.userSerialNum);
+        if (walletInfo.isReady && walletInfo.walletAddresses != null) {
+          debugPrint('$_tag recoverByMnemonic() - 钱包地址获取成功');
+          // _saveWalletData 会保存地址并设置 isWalletReady
+          await _saveWalletData(walletInfo);
+        } else {
+          debugPrint('$_tag recoverByMnemonic() - 钱包地址未就绪: ${walletInfo.status}');
+        }
+      } catch (e) {
+        // 钱包地址获取失败不影响恢复流程，可以稍后重试
+        debugPrint('$_tag recoverByMnemonic() - 获取钱包地址失败 (不影响恢复): $e');
+      }
+
       debugPrint('$_tag recoverByMnemonic() - 账户恢复完成');
       return result;
     } on ApiException catch (e) {
@@ -776,6 +792,13 @@ class AccountService {
       value: 'true',
     );
 
+    // 恢复的账户钱包已就绪（助记词恢复意味着钱包已存在）
+    debugPrint('$_tag _saveRecoverAccountData() - 标记钱包已就绪');
+    await _secureStorage.write(
+      key: StorageKeys.isWalletReady,
+      value: 'true',
+    );
+
     debugPrint('$_tag _saveRecoverAccountData() - 恢复账号数据保存完成');
   }
 

frontend/mobile-app/lib/core/services/deposit_service.dart

@@ -1,5 +1,7 @@
 import 'package:flutter/foundation.dart';
 import '../network/api_client.dart';
+import '../storage/secure_storage.dart';
+import '../storage/storage_keys.dart';
 
 /// 充值地址响应
 class DepositAddressResponse {
@@ -75,28 +77,85 @@ class BalanceResponse {
 /// 提供充值地址获取和余额查询功能
 class DepositService {
   final ApiClient _apiClient;
+  final SecureStorage _secureStorage;
 
-  DepositService({required ApiClient apiClient}) : _apiClient = apiClient;
+  DepositService({
+    required ApiClient apiClient,
+    required SecureStorage secureStorage,
+  })  : _apiClient = apiClient,
+        _secureStorage = secureStorage;
 
   /// 获取充值地址
   ///
+  /// 优先从本地存储获取，如果没有则从服务器获取
   /// 返回用户的 KAVA 和 BSC 充值地址
-  /// 会验证地址签名，确保地址未被篡改
   Future<DepositAddressResponse> getDepositAddresses() async {
     try {
       debugPrint('获取充值地址...');
-      final response = await _apiClient.get('/api/deposit/addresses');
 
-      if (response.statusCode == 200) {
+      // 先尝试从本地存储读取
-        final data = response.data as Map<String, dynamic>;
+      final kavaAddress = await _secureStorage.read(key: StorageKeys.walletAddressKava);
-        debugPrint('充值地址获取成功: kava=${data['kavaAddress']}, bsc=${data['bscAddress']}');
+      final bscAddress = await _secureStorage.read(key: StorageKeys.walletAddressBsc);
-        return DepositAddressResponse.fromJson(data);
+
+      if (kavaAddress != null && kavaAddress.isNotEmpty &&
+          bscAddress != null && bscAddress.isNotEmpty) {
+        debugPrint('从本地存储获取充值地址: kava=$kavaAddress, bsc=$bscAddress');
+        return DepositAddressResponse(
+          kavaAddress: kavaAddress,
+          bscAddress: bscAddress,
+          isValid: true,
+        );
       }
 
-      throw Exception('获取充值地址失败');
+      // 本地没有，从服务器获取
+      debugPrint('本地无缓存，从服务器获取钱包地址...');
+      final response = await _apiClient.get('/user/wallet');
+
+      if (response.statusCode == 200) {
+        final responseData = response.data as Map<String, dynamic>;
+        final data = responseData['data'] as Map<String, dynamic>?;
+
+        if (data != null && data['status'] == 'ready') {
+          final addresses = data['walletAddresses'] as Map<String, dynamic>?;
+          if (addresses != null) {
+            final kava = addresses['kava'] as String?;
+            final bsc = addresses['bsc'] as String?;
+
+            debugPrint('从服务器获取充值地址成功: kava=$kava, bsc=$bsc');
+
+            // 保存到本地存储
+            if (kava != null && kava.isNotEmpty) {
+              await _secureStorage.write(key: StorageKeys.walletAddressKava, value: kava);
+            }
+            if (bsc != null && bsc.isNotEmpty) {
+              await _secureStorage.write(key: StorageKeys.walletAddressBsc, value: bsc);
+            }
+
+            return DepositAddressResponse(
+              kavaAddress: kava,
+              bscAddress: bsc,
+              isValid: kava != null && bsc != null,
+              message: (kava == null || bsc == null) ? '部分地址未生成' : null,
+            );
+          }
+        } else if (data != null && data['status'] == 'generating') {
+          return DepositAddressResponse(
+            isValid: false,
+            message: '钱包生成中，请稍后重试',
+          );
+        }
+      }
+
+      return DepositAddressResponse(
+        isValid: false,
+        message: '获取充值地址失败',
+      );
     } catch (e) {
       debugPrint('获取充值地址失败: $e');
-      rethrow;
+      return DepositAddressResponse(
+        isValid: false,
+        message: '获取充值地址失败: $e',
+      );
     }
   }
 

frontend/mobile-app/lib/features/mining/presentation/pages/mining_page.dart

@@ -1,5 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_svg/flutter_svg.dart';
+import '../../../../core/di/injection_container.dart';
 
 /// 挖矿状态枚举
 enum MiningStatus {
@@ -21,12 +23,37 @@ class _MiningPageState extends ConsumerState<MiningPage> {
   // 当前挖矿状态
   MiningStatus _miningStatus = MiningStatus.pending;
 
-  // 模拟用户数据
+  // 用户数据（从存储加载）
-  final String _serialNumber = '12345';
+  String _serialNumber = '--';
+  String? _avatarSvg;
+  String? _avatarUrl;
   final String _community = '星空社区';
   final String _province = '广东';
   final String _city = '深圳';
 
+  @override
+  void initState() {
+    super.initState();
+    _loadUserData();
+  }
+
+  /// 加载用户数据
+  Future<void> _loadUserData() async {
+    final accountService = ref.read(accountServiceProvider);
+
+    final serialNum = await accountService.getUserSerialNum();
+    final avatarSvg = await accountService.getAvatarSvg();
+    final avatarUrl = await accountService.getAvatarUrl();
+
+    if (mounted) {
+      setState(() {
+        _serialNumber = serialNum?.toString() ?? '--';
+        _avatarSvg = avatarSvg;
+        _avatarUrl = avatarUrl;
+      });
+    }
+  }
+
   /// 显示帮助信息
   void _showHelpInfo() {
     showDialog(
@@ -178,22 +205,11 @@ class _MiningPageState extends ConsumerState<MiningPage> {
             height: 80,
             decoration: BoxDecoration(
               borderRadius: BorderRadius.circular(40),
-              gradient: const LinearGradient(
+              color: const Color(0xFFFFF5E6),
-                begin: Alignment.topLeft,
-                end: Alignment.bottomRight,
-                colors: [
-                  Color(0xFFFF6B6B),
-                  Color(0xFFFFE66D),
-                  Color(0xFF4ECDC4),
-                ],
-              ),
             ),
-            child: const Center(
+            child: ClipRRect(
-              child: Icon(
+              borderRadius: BorderRadius.circular(40),
-                Icons.person,
+              child: _buildAvatarContent(),
-                size: 40,
-                color: Colors.white,
-              ),
             ),
           ),
           const SizedBox(width: 16),
@@ -344,4 +360,54 @@ class _MiningPageState extends ConsumerState<MiningPage> {
       ],
     );
   }
+
+  /// 构建头像内容（支持网络URL和SVG）
+  Widget _buildAvatarContent() {
+    // 优先显示已上传的网络图片URL
+    if (_avatarUrl != null && _avatarUrl!.isNotEmpty) {
+      return Image.network(
+        _avatarUrl!,
+        width: 80,
+        height: 80,
+        fit: BoxFit.cover,
+        loadingBuilder: (context, child, loadingProgress) {
+          if (loadingProgress == null) return child;
+          return const Center(
+            child: SizedBox(
+              width: 24,
+              height: 24,
+              child: CircularProgressIndicator(
+                strokeWidth: 2,
+                valueColor: AlwaysStoppedAnimation<Color>(Color(0xFFD4AF37)),
+              ),
+            ),
+          );
+        },
+        errorBuilder: (context, error, stackTrace) {
+          // 加载失败时显示SVG或默认头像
+          return _buildSvgOrDefaultAvatar();
+        },
+      );
+    }
+
+    // 显示SVG或默认头像
+    return _buildSvgOrDefaultAvatar();
+  }
+
+  /// 构建SVG或默认头像
+  Widget _buildSvgOrDefaultAvatar() {
+    if (_avatarSvg != null) {
+      return SvgPicture.string(
+        _avatarSvg!,
+        width: 80,
+        height: 80,
+        fit: BoxFit.cover,
+      );
+    }
+    return const Icon(
+      Icons.person,
+      size: 40,
+      color: Color(0xFF8B5A2B),
+    );
+  }
 }