feat(mining-app): 分离发送/接收记录 + 隐藏买入待开启

- 发送页右上角"转出记录"只显示转出明细
- 接收页右上角新增"接收记录"只显示转入明细
- P2pTransferRecordsPage 支持 filterDirection 参数过滤方向
- 兑换页隐藏"买入待开启" Tab（_showBuyTab=false，保留代码备启用）

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/mining-app/lib/core/router/app_router.dart

@@ -170,7 +170,9 @@ final appRouterProvider = Provider<GoRouter>((ref) {
       ),
       GoRoute(
         path: Routes.p2pTransferRecords,
-        builder: (context, state) => const P2pTransferRecordsPage(),
+        builder: (context, state) => P2pTransferRecordsPage(
+          filterDirection: state.uri.queryParameters['filter'],
+        ),
       ),
       GoRoute(
         path: Routes.helpCenter,

frontend/mining-app/lib/presentation/pages/asset/p2p_transfer_records_page.dart

@@ -8,8 +8,11 @@ import '../../providers/transfer_providers.dart';
 import '../../providers/user_providers.dart';
 
 /// P2P转账记录页面
+/// [filterDirection] - 过滤方向: 'send' 只显示转出, 'receive' 只显示转入, null 显示全部
 class P2pTransferRecordsPage extends ConsumerWidget {
-  const P2pTransferRecordsPage({super.key});
+  final String? filterDirection;
+
+  const P2pTransferRecordsPage({super.key, this.filterDirection});
 
   static const Color _orange = Color(0xFFFF6B00);
   static const Color _green = Color(0xFF10B981);
@@ -18,6 +21,28 @@ class P2pTransferRecordsPage extends ConsumerWidget {
   static const Color _darkText = Color(0xFF1F2937);
   static const Color _bgGray = Color(0xFFF3F4F6);
 
+  String get _title {
+    switch (filterDirection) {
+      case 'send':
+        return '转出记录';
+      case 'receive':
+        return '转入记录';
+      default:
+        return '转账记录';
+    }
+  }
+
+  String get _emptyText {
+    switch (filterDirection) {
+      case 'send':
+        return '暂无转出记录';
+      case 'receive':
+        return '暂无转入记录';
+      default:
+        return '暂无转账记录';
+    }
+  }
+
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final user = ref.watch(userNotifierProvider);
@@ -27,9 +52,9 @@ class P2pTransferRecordsPage extends ConsumerWidget {
     return Scaffold(
       backgroundColor: _bgGray,
       appBar: AppBar(
-        title: const Text(
+        title: Text(
-          '转账记录',
+          _title,
-          style: TextStyle(
+          style: const TextStyle(
             fontSize: 18,
             fontWeight: FontWeight.bold,
             color: _darkText,
@@ -64,7 +89,15 @@ class P2pTransferRecordsPage extends ConsumerWidget {
               ],
             ),
           ),
-          data: (records) {
+          data: (allRecords) {
+            // 按方向过滤
+            final records = filterDirection == null
+                ? allRecords
+                : allRecords.where((r) {
+                    final isSend = r.fromAccountSequence == accountSequence;
+                    return filterDirection == 'send' ? isSend : !isSend;
+                  }).toList();
+
             if (records.isEmpty) {
               return Center(
                 child: Column(
@@ -76,9 +109,9 @@ class P2pTransferRecordsPage extends ConsumerWidget {
                       color: _grayText.withOpacity(0.5),
                     ),
                     const SizedBox(height: 16),
-                    const Text(
+                    Text(
-                      '暂无转账记录',
+                      _emptyText,
-                      style: TextStyle(
+                      style: const TextStyle(
                         fontSize: 16,
                         color: _grayText,
                       ),

frontend/mining-app/lib/presentation/pages/asset/receive_shares_page.dart

@@ -3,6 +3,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 import 'package:qr_flutter/qr_flutter.dart';
+import '../../../core/router/routes.dart';
 import '../../providers/user_providers.dart';
 
 class ReceiveSharesPage extends ConsumerWidget {
@@ -38,6 +39,20 @@ class ReceiveSharesPage extends ConsumerWidget {
           ),
         ),
         centerTitle: true,
+        actions: [
+          TextButton(
+            onPressed: () => context.push(
+              '${Routes.p2pTransferRecords}?filter=receive',
+            ),
+            child: const Text(
+              '接收记录',
+              style: TextStyle(
+                fontSize: 14,
+                color: _orange,
+              ),
+            ),
+          ),
+        ],
       ),
       body: SingleChildScrollView(
         child: Column(

frontend/mining-app/lib/presentation/pages/asset/send_shares_page.dart

@@ -68,9 +68,11 @@ class _SendSharesPageState extends ConsumerState<SendSharesPage> {
         centerTitle: true,
         actions: [
           TextButton(
-            onPressed: () => context.push(Routes.p2pTransferRecords),
+            onPressed: () => context.push(
+              '${Routes.p2pTransferRecords}?filter=send',
+            ),
             child: const Text(
-              '转账记录',
+              '转出记录',
               style: TextStyle(
                 fontSize: 14,
                 color: _orange,

frontend/mining-app/lib/presentation/pages/trading/trading_page.dart

@@ -29,6 +29,9 @@ class _TradingPageState extends ConsumerState<TradingPage> {
   static const Color _green = AppColors.up;
   static const Color _red = AppColors.down;
 
+  // 买入功能暂时隐藏，未来启用时改为 true
+  static const bool _showBuyTab = false;
+
   // 状态
   int _selectedTab = 1; // 0: 买入, 1: 卖出
   int _selectedTimeRange = 4; // 时间周期选择，默认1时
@@ -412,7 +415,7 @@ class _TradingPageState extends ConsumerState<TradingPage> {
     }
 
     // 如果选中买入但买入功能未开启，强制切换到卖出
-    if (_selectedTab == 0 && !buyEnabled) {
+    if (_showBuyTab && _selectedTab == 0 && !buyEnabled) {
       WidgetsBinding.instance.addPostFrameCallback((_) {
         if (mounted && _selectedTab == 0) {
           setState(() => _selectedTab = 1);
@@ -432,6 +435,8 @@ class _TradingPageState extends ConsumerState<TradingPage> {
       ),
       child: Column(
         children: [
+          // 买入/卖出 Tab 切换（买入功能隐藏时不显示 Tab 栏）
+          if (_showBuyTab) ...[
             Container(
               decoration: BoxDecoration(
                 border: Border(bottom: BorderSide(color: bgGray)),
@@ -516,8 +521,9 @@ class _TradingPageState extends ConsumerState<TradingPage> {
               ),
             ),
             const SizedBox(height: 24),
+          ],
           // 买入功能未开启时显示提示
-          if (_selectedTab == 0 && !buyEnabled) ...[
+          if (_showBuyTab && _selectedTab == 0 && !buyEnabled) ...[
             Container(
               padding: const EdgeInsets.all(24),
               child: Column(