接入AGC后台模型目录与对话模型选择

新增后台 AGC 模型目录、别名、启停和默认项管理

客户端设置页恢复原状，对话框右下角按别名选择模型

服务端按稳定模型标识映射并校验实际模型白名单

修复 AGC 配套后端端口漂移、启动等待和 SpacetimeDB 版本检查

补充迁移、文档、启动与模型选择测试

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

@@ -1072,3 +1072,19 @@ function buildAdminApiError(
 function isRecord(value: unknown): value is Record<string, unknown> {
   return typeof value === 'object' && value !== null && !Array.isArray(value);
 }
+export function getAgcModelCatalog(token: string) {
+  return request<import('./adminApiTypes').AdminAgcModelCatalog>(
+    '/admin/api/agc-models',
+    { token },
+  );
+}
+
+export function saveAgcModelCatalog(
+  token: string,
+  body: import('./adminApiTypes').AdminAgcModelCatalog,
+) {
+  return request<import('./adminApiTypes').AdminAgcModelCatalog>(
+    '/admin/api/agc-models',
+    { token, method: 'PUT', body },
+  );
+}

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

@@ -998,3 +998,15 @@ export interface AdminRechargeRefundActionResponse {
 export interface AdminWalletRestrictionResponse {
   wallet: AdminProfileWalletPayload;
 }
+export interface AdminAgcModel {
+  id: string;
+  alias: string;
+  modelId: string;
+  enabled: boolean;
+}
+
+export interface AdminAgcModelCatalog {
+  revision: number;
+  defaultModelId: string;
+  models: AdminAgcModel[];
+}