Fixes test_readme_documents_all_settings_keys — federation_key was added
by the federation feature but not documented in README. Also commits the
CLI refactor plan files as historical ADRs.
README now documents all features, 14 config keys, full CLI reference,
keyboard shortcuts, platform support, and project structure. Previous
README covered ~40% of actual functionality. Added docs/plans/README.md
noting these are historical ADRs from the initial build.
Added 9 new README tests verifying all settings keys are documented,
clipboard features, keyboard shortcuts, auth modes, platform support,
ANSI previews, hover preview, and view modes.
- Config file (settings.json) becomes source of truth for serve options
- Replace install-service with muxplex service <command> subgroup
- Clean up CLI structure (upgrade/update alias, serve flag precedence)
- Thin wrappers over systemctl/launchctl for install/uninstall/start/stop/restart/status/logs
- Backward compat: install-service remains as deprecated alias
Brian Krabach