v0.2.0: Improve Telegram UX and simplify CLI

- Clean up Telegram message formatting (italic labels, silent user notifications)
- Simplify CLI: `afk-code claude` instead of `afk-code run -- claude`
- Add client comparison table to README
- Reorder docs to recommend Telegram/Discord first

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>