feat(group): add node group management UI

Add node group management interface with automatic user assignment and traffic-based grouping.

Features:
- Node group CRUD with traffic range configuration
- Three grouping modes: average, subscription-based, and traffic-based
- Group recalculation with preview and history tracking
- Subscribe-to-group mapping management
- User subscription group locking
- Group calculation history with detailed reports
- Multi-language support (en-US, zh-CN)
- Enhanced node and subscription forms with group selection

apps/admin/public/assets/locales/en-US/components.json

@@ -40,6 +40,8 @@
     "40005": "You do not have access permission, please contact the administrator if you have any questions.",
     "50001": "Corresponding coupon information not found, please check and try again.",
     "50002": "The coupon has been used, cannot be used again.",
+    "50003": "This coupon code is not supported by the current purchase plan.",
+    "50004": "Coupon has insufficient remaining uses.",
     "60001": "Subscription has expired, please renew before using.",
     "60002": "Unable to use the subscription at the moment, please try again later.",
     "60003": "An existing subscription is detected. Please cancel it before proceeding.",