feat: 自定义版本功能更新

- 新增家庭共享订阅管理
- 新增用户邀请统计
- 新增签名和订阅模式设置表单
- 更新 API 服务层和国际化文件
- UI 组件优化（enhanced-input、pro-table）

apps/admin/src/sections/system/index.tsx

@@ -12,6 +12,8 @@ import TosForm from "./basic-settings/tos-form";
 import LogCleanupForm from "./log-cleanup/log-cleanup-form";
 import InviteForm from "./user-security/invite-form";
 import RegisterForm from "./user-security/register-form";
+import SignatureForm from "./user-security/signature-form";
+import SubscribeModeForm from "./user-security/subscribe-mode-form";
 import VerifyCodeForm from "./user-security/verify-code-form";
 import VerifyForm from "./user-security/verify-form";
 
@@ -35,6 +37,8 @@ export default function System() {
         { component: InviteForm },
         { component: VerifyForm },
         { component: VerifyCodeForm },
+        { component: SignatureForm },
+        { component: SubscribeModeForm },
       ],
     },
     {