AI tracker: /trackers/ai with public news, owner-only bots and usage; ai schema (news_items, bot_status, usage_entries); idempotent import scripts; preflight ai grants check

src/lib/server/db/schema/index.ts

@@ -28,3 +28,4 @@ export * from './hardware';
 export * from './dataholders';
 export * from './stats';
 export * from './pubg-map';
+export * from './ai';