- Add delete all data button with red danger style and confirmation prompt
- Add DeleteUserData repo method that wipes user from all tables in a transaction
- Add helper methods deleteAccountPrompt and deleteAccountConfirm
- Implement consistency_master, perfect_week, remote_veteran, onsite_master achievements
- Add GetDailyXPInRange and SumWorkSecondsByWorkType repo methods
- Update Dockerfile to alpine3.23, docker-compose to use env vars for proxy/paths
- Add chat_id to events, settings, and days_off for per-user data
- Add proper graceful shutdown (signal handling, WaitGroup)
- Separate polling and webhook modes with goroutine management
- Add schema migration from single-user to multi-user schema
- Refactor handlers with shared actionFunc pattern (msg + callback)
- Fix schema path for Docker deployment (/app/db/schema.sql)
- Remove emoji from output text for cleaner formatting
