feat(app): 接入金币充值与会员商品下单

lib/l10n/app_localizations_zh.dart

@@ -1176,4 +1176,72 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get rankingTopPick => '今日榜首';
+
+  @override
+  String get rechargeTitle => '充值金币';
+
+  @override
+  String get vipTitle => 'VIP 会员';
+
+  @override
+  String get buy => '购买';
+
+  @override
+  String bonusCoin(int bonus) {
+    return '赠 $bonus';
+  }
+
+  @override
+  String vipDuration(int days) {
+    return '$days 天会员';
+  }
+
+  @override
+  String get noCoinPacks => '暂无可购金币包。';
+
+  @override
+  String get noVipPlans => '暂无可开通会员。';
+
+  @override
+  String get productsLoadFailed => '商品加载失败。';
+
+  @override
+  String orderCreated(String orderNo) {
+    return '订单 $orderNo 已创建。';
+  }
+
+  @override
+  String get paymentPending => '等待支付。';
+
+  @override
+  String get orderCreateFailed => '订单创建失败。';
+
+  @override
+  String get playbackQuality => '清晰度';
+
+  @override
+  String get qualityAuto => '自动';
+
+  @override
+  String get qualityAutoHint => 'HLS 会根据当前网络自动切换码率。';
+
+  @override
+  String get searchFailed => '搜索失败，请重试。';
+
+  @override
+  String get languageFilter => '语言';
+
+  @override
+  String get languageChinese => '中文';
+
+  @override
+  String get languageIndonesian => '印尼语';
+
+  @override
+  String get languageEnglish => '英语';
+
+  @override
+  String searchResultCount(int count) {
+    return '$count 个结果';
+  }
 }