feat(app): 接入金币充值与会员商品下单

lib/l10n/app_localizations_en.dart

@@ -1199,4 +1199,73 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get rankingTopPick => 'TOP PICK';
+
+  @override
+  String get rechargeTitle => 'Top Up Coins';
+
+  @override
+  String get vipTitle => 'VIP Membership';
+
+  @override
+  String get buy => 'Buy';
+
+  @override
+  String bonusCoin(int bonus) {
+    return '+$bonus bonus';
+  }
+
+  @override
+  String vipDuration(int days) {
+    return '$days-day VIP';
+  }
+
+  @override
+  String get noCoinPacks => 'No coin packs available right now.';
+
+  @override
+  String get noVipPlans => 'No VIP plans available right now.';
+
+  @override
+  String get productsLoadFailed => 'Could not load products.';
+
+  @override
+  String orderCreated(String orderNo) {
+    return 'Order $orderNo created.';
+  }
+
+  @override
+  String get paymentPending => 'Waiting for payment.';
+
+  @override
+  String get orderCreateFailed => 'Could not create the order.';
+
+  @override
+  String get playbackQuality => 'Quality';
+
+  @override
+  String get qualityAuto => 'Auto';
+
+  @override
+  String get qualityAutoHint =>
+      'HLS adjusts the bitrate automatically for your connection.';
+
+  @override
+  String get searchFailed => 'Search failed. Please try again.';
+
+  @override
+  String get languageFilter => 'Language';
+
+  @override
+  String get languageChinese => 'Chinese';
+
+  @override
+  String get languageIndonesian => 'Indonesian';
+
+  @override
+  String get languageEnglish => 'English';
+
+  @override
+  String searchResultCount(int count) {
+    return '$count results';
+  }
 }