feat(02-01): 扩展 RBAC 矩阵增加 credential-slot 模块

- PermissionModule union 末尾追加 'credential-slot' 字面量（共 14 项）
- 超级管理员 / AI模型管理员 两角色数组末尾追加 'credential-slot'
- 顶部权限矩阵注释表新增「凭据槽位」行
- 其他 4 角色（内容管理员/卡牌管理员/查看者/管理员）数组逐字不变
- getModuleFromPath 不动（凭据槽位是 /ai-model 子能力，无独立路由）

qy-lty-admin/lib/permissions.ts

@@ -8,6 +8,7 @@
  * | 用户管理     | ✓         |           |            |           |       |
  * | 角色权限管理  | ✓         |           |            |           |       |
  * | AI模型管理   | ✓         |           | ✓          |           |       |
+ * | 凭据槽位     | ✓         |           | ✓          |           |       |
  * | 服装管理     | ✓         | ✓         |            | ✓         |       |
  * | 道具管理     | ✓         | ✓         |            | ✓         |       |
  * | 歌曲管理     | ✓         | ✓         |            |           |       |
@@ -31,7 +32,8 @@ export type PermissionModule =
   | "dances"
   | "achievements"
   | "affinity"
-  | "settings";
+  | "settings"
+  | "credential-slot";
 
 // 权限矩阵定义
 const PERMISSION_MATRIX: Record<RoleName, PermissionModule[]> = {
@@ -39,6 +41,7 @@ const PERMISSION_MATRIX: Record<RoleName, PermissionModule[]> = {
     "dashboard", "users", "permissions", "ai-model",
     "outfits", "props", "home-decor", "food",
     "songs", "dances", "achievements", "affinity", "settings",
+    "credential-slot",
   ],
   内容管理员: [
     "dashboard", "outfits", "props", "home-decor", "food",
@@ -46,6 +49,7 @@ const PERMISSION_MATRIX: Record<RoleName, PermissionModule[]> = {
   ],
   AI模型管理员: [
     "dashboard", "ai-model",
+    "credential-slot",
   ],
   卡牌管理员: [
     "dashboard", "outfits", "props", "home-decor", "food",