feat(app): 接入金币充值与会员商品下单

lib/pages/wallet/wallet_page.dart

@@ -13,6 +13,8 @@ import '../../core/theme/app_colors.dart';
 import '../../core/theme/app_dimens.dart';
 import '../../core/theme/app_theme.dart';
 import '../../core/widgets/empty_state.dart';
+import '../store/recharge_page.dart';
+import '../store/vip_page.dart';
 import '../../l10n/app_localizations.dart';
 
 /// 金币钱包：余额、累计收支与最近流水。
@@ -56,6 +58,53 @@ class _WalletPageState extends State<WalletPage> {
     );
   }
 
+  Widget _storeActions(AppLocalizations l10n, WalletController wallet) {
+    return Row(
+      children: [
+        Expanded(
+          child: FilledButton.icon(
+            key: const Key('wallet-top-up'),
+            onPressed: () => _openRecharge(wallet),
+            icon: const Icon(Icons.add_card_rounded, size: 16),
+            label: Text(l10n.topUpWallet),
+            style: FilledButton.styleFrom(
+              backgroundColor: AppColors.blue,
+              foregroundColor: AppColors.onPrimary,
+            ),
+          ),
+        ),
+        const SizedBox(width: 10),
+        Expanded(
+          child: OutlinedButton.icon(
+            key: const Key('wallet-vip'),
+            onPressed: () => _openVip(wallet),
+            icon: const Icon(Icons.workspace_premium_outlined, size: 16),
+            label: Text(l10n.vipMembership),
+            style: OutlinedButton.styleFrom(foregroundColor: AppColors.gold),
+          ),
+        ),
+      ],
+    );
+  }
+
+  void _openRecharge(WalletController wallet) {
+    Navigator.of(context).push(
+      MaterialPageRoute<void>(
+        builder: (_) => RechargePage(
+          onPurchased: () => unawaited(wallet.load()),
+        ),
+      ),
+    );
+  }
+
+  void _openVip(WalletController wallet) {
+    Navigator.of(context).push(
+      MaterialPageRoute<void>(
+        builder: (_) => VipPage(onPurchased: () => unawaited(wallet.load())),
+      ),
+    );
+  }
+
   Widget _body(AppLocalizations l10n, WalletController wallet) {
     if (wallet.loading && wallet.snapshot == null) {
       return const Center(child: CircularProgressIndicator());
@@ -77,6 +126,8 @@ class _WalletPageState extends State<WalletPage> {
         padding: const EdgeInsets.fromLTRB(16, 8, 16, 28),
         children: [
           _BalanceHero(wallet: snapshot.wallet),
+          const SizedBox(height: 12),
+          _storeActions(l10n, wallet),
           const SizedBox(height: 14),
           Row(
             children: [