The attune command-line interface and its natural-language router

Failure modes

Symptom	Cause	Fix	Severity
`attune: command not found`	console script not on PATH	reinstall, or use `python -m attune.cli_minimal`	medium
`RuntimeWarning: coroutine 'route_user_input' was never awaited`	called `route_user_input` without `await`	it is async — `await` it / `asyncio.run`	high
A subcommand errors on args	wrong subcommand or arguments	`attune <group> --help`	low
`attune doctor` reports problems	environment/config issue	follow its diagnostics	medium

route_user_input is async. is_slash_command and SmartRouter.list_workflows are sync; route is async (route_sync is the sync variant).
Console script vs module. If attune isn't on PATH, python -m attune.cli_minimal always works.