- MAX media upload: drop deprecated &v=1.2.5 from /uploads and /messages
(MAX returns 404 with it; photos/videos broke, text was unaffected).
- Run group moderation before discussion-comment ingest.
- Generic addon extension hooks; core stays agnostic to their semantics:
CrosspostAllowed, CrosspostDeliverable, HandleMaxCommand.
- Customizable /help and /start from a file next to the binary (HELP_FILE).
- /link command; optional web_app menu button (MINIAPP_URL).
- Track bot chats and pair owners; migrations 017-019.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
