修复用户端个人头像展示

apps/user_app/lib/data/repositories/client_repository.dart

@@ -1,3 +1,5 @@
+import 'dart:typed_data';
+
 import '../../domain/models/client_models.dart';
 import '../services/api_client.dart';
 
@@ -39,6 +41,9 @@ class ClientRepository {
   Future<UserProfile> profile() async =>
       UserProfile.fromJson(jsonMap(await _api.get('$root/auth/profile')));
 
+  /// 通过用户端鉴权接口读取当前登录用户的头像二进制内容。
+  Future<Uint8List?> profileAvatar() => _api.getBytes('$root/auth/avatar');
+
   Future<WalletSummary> wallet() async =>
       WalletSummary.fromJson(jsonMap(await _api.get('$root/wallet')));
 
@@ -93,15 +98,17 @@ class ClientRepository {
     required String channel,
     required String payType,
     String openid = '',
-  }) async => jsonMap(await _api.post(
-    '$root/$business/orders/$identity/pay',
-    body: {
-      'request_no': requestNo,
-      'channel': channel,
+  }) async => jsonMap(
+    await _api.post(
+      '$root/$business/orders/$identity/pay',
+      body: {
+        'request_no': requestNo,
+        'channel': channel,
         'pay_type': payType,
         if (openid.isNotEmpty) 'openid': openid,
-    },
-  ));
+      },
+    ),
+  );
 
   Future<void> createRefund({
     required String business,
@@ -110,11 +117,14 @@ class ClientRepository {
     required String reason,
     required List<Map<String, Object?>> items,
   }) async {
-    await _api.post('$root/$business/orders/$identity/refunds', body: {
-      'request_no': requestNo,
-      'reason': reason,
-      'items': items,
-    });
+    await _api.post(
+      '$root/$business/orders/$identity/refunds',
+      body: {
+        'request_no': requestNo,
+        'reason': reason,
+        'items': items,
+      },
+    );
   }
 
   Future<Map<String, Object?>?> serviceRelation() async {

apps/user_app/lib/data/services/api_client.dart

@@ -1,6 +1,7 @@
 // 功能描述：封装用户端 HTTP 请求，并将服务端错误转换为安全、可读的中文提示。
 // 版本：1.1.0
 import 'dart:convert';
+import 'dart:typed_data';
 
 import 'package:http/http.dart' as http;
 
@@ -104,6 +105,20 @@ class ApiClient {
   Future<Object?> get(String path, {bool authenticated = true}) =>
       _send('GET', path, authenticated: authenticated);
 
+  /// 读取需要鉴权的二进制资源；资源不存在时返回空值。
+  Future<Uint8List?> getBytes(String path) async {
+    final request = http.Request('GET', Uri.parse('$baseUrl$path'));
+    request.headers['accept'] = 'image/jpeg, image/png';
+    final token = _tokenProvider();
+    if (token.isNotEmpty) request.headers['authorization'] = token;
+    final response = await _sendRequest(request);
+    if (response.statusCode == 404) return null;
+    if (response.statusCode < 200 || response.statusCode >= 300) {
+      throw ApiException(response.statusCode, '头像加载失败');
+    }
+    return response.bodyBytes.isEmpty ? null : response.bodyBytes;
+  }
+
   Future<Object?> post(
     String path, {
     Map<String, Object?>? body,