fix(assistant): list the admin ChatGPT routes a managed install withholds

The boot check refuses a @ManagedForbidden route the allow list does not
name; the two new admin routes for a shared ChatGPT sign-in were missing.

server/src/nest/common/validate-managed-routes.ts

@@ -72,6 +72,8 @@ export const MANAGED_ROUTE_ALLOW_LIST: string[] = [
   'AiAdminController.saveConnection',
   'AiAdminController.saveSettings',
   'AiAdminController.settings',
+  'AiAdminController.signOutChatgpt',
+  'AiAdminController.startChatgpt',
   'AiAdminController.startOpenrouter',
   'AiConnectionsController.ackPrivacy',
   'AiConnectionsController.connect',