refactor(后台会员): 收窄会员状态的字面量联合

- adminApiTypes.ts：AdminProfileMembershipPayload.status 由 string 收窄为 'normal' | 'active'

Co-authored-by: Junie <junie@jetbrains.com>

apps/admin-web/src/api/adminApiTypes.ts

@@ -1054,7 +1054,8 @@ export interface AdminUserDetailResponse {
 /** 当前会员状态与账期；无会员时为 `normal` 档位、无到期时间。 */
 export interface AdminProfileMembershipPayload {
   plan: ProfileMembershipPlan;
-  status: string;
+  /** 与后端 `RuntimeProfileMembershipStatus` 对齐：`normal` / `active`。 */
+  status: 'normal' | 'active';
   cycleKind: ProfileMembershipCycleKind;
   cycleIndex: number;
   cycleCount: number;