docs: improve JSDoc comment for AI service type in DiscoveryInfo

Agent-Logs-Url: https://github.com/objectstack-ai/objectui/sessions/14bca4e2-4027-410b-bc6a-5ef0dc86a4fa

Co-authored-by: xuyushun441-sys <255036401+xuyushun441-sys@users.noreply.github.com>

Author: Copilot

packages/react/src/hooks/useDiscovery.ts

@@ -49,7 +49,7 @@ export interface DiscoveryInfo {
       enabled: boolean;
       status?: 'available' | 'unavailable';
     };
-    /** AI service status */
+    /** AI service configuration */
     ai?: {
       enabled: boolean;
       status?: 'available' | 'unavailable';