- node-cron scheduler runs at 00:00 UTC every day
- Custom server.js auto-starts cron on npm start
- isRunning lock prevents concurrent report runs
- cron-initialize API for manual cron control
- Updated npm start to use server.js entry point
- Admin API routes: recipients CRUD, AI/SMTP config, report generation
- UI page: dual-tab management (recipients + AI/SMTP settings)
- Auto table creation via CREATE TABLE IF NOT EXISTS
- AI summary via OpenAI Chat Completions API (stored in DB, not env)
- Direct SMTP sending via Node.js built-in net/tls (no nodemailer)
- Report includes: new users, rooms, commits, messages, top room + AI summary
- Sidebar navigation added for /admin/daily-report
- Use `Cluster` as default export from ioredis (not RedisCluster named export)
- Import ClusterNode type and use explicit type annotation on nodes array
- Use `any` cast on Cluster constructor to bypass TS overload resolution issue
- Fix closeRedis return type to Promise<unknown>
- Replace deprecated Cluster with RedisCluster (ioredis 5.x breaking change)
- Extract username/password from cluster URLs for authentication
- Fix REDIS_CLUSTER_URLS to include all 3 master nodes with default user
