- README.md: Add v4.0.1 to version history - API.md: Update title and version in examples to v4.0.1 - CLI.md: Update title to v4.0.1 - WEB_UI.md: Update to v4.0.1, document channel key dropdown and LED indicators 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>