Replace go-telegram-bot-api/v5 (2021, no forum topics) with
go-telegram/bot v1.20.0 (Bot API 9.5) via TGSender adapter pattern.
- New TGSender interface + tgBotSender implementation isolating library
- Native message_thread_id support: saved at /bridge, used in MAX→TG
sends, echoed in all command responses, looked up in queue retries
- All 16 files migrated, zero old library references remain
- Proper error wrapping: MigrateError, Forbidden, BadRequest, NotFound,
TooManyRequests → TGError with codes
- ForwardFromChat → ForwardOriginChat (Bot API MessageOrigin pattern)
- Repository: GetTgThreadID/SetTgThreadID (migration 000012 already applied)
- Tests for convertMsg, convertCallback, wrapErr, toInputFile,
toLibInputMedia, tgEntitiesToMarkdown, maxMarkupsToHTML
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Bi-directional message bridge between Telegram and MAX messengers.
Features: 1:1 chat pairing, reply support, message formatting,
prefix toggle, SQLite/PostgreSQL with golang-migrate, Dockerfile,
CI/CD with GitHub Actions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
