- handleSubscribe checks IsSubscribed, calls AddSubscriber with chat ID and username
- handleUnsubscribe calls RemoveSubscriber, reports rows affected
- Both use storage layer from Plan 17-02
- Removed stub implementations from bot.go
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add telego v1.8.0 as direct dependency for Telegram bot
- Create pkg/bot/bot.go with Bot struct, Config, New, Start, Stop
- Implement isAllowed chat authorization and per-user rate limiting
- Add command dispatch with handler stubs for all 10 commands
- Long polling lifecycle with context cancellation for graceful shutdown
