Groove Utilities Task Doctor

This runs a series of health checks on your Groove task backend setup and tells you exactly what's broken. It verifies your config file exists, checks if the right CLI is installed (beans, Linear, or GitHub), confirms auth is working, and tests actual connectivity with a lightweight API call. Each failure comes with a specific remediation command to run next. The smart bit is it reports everything at once rather than failing fast, so you get the full picture of what needs fixing. If you've set tasks to none, it just confirms that and exits green. Useful when onboarding teammates or debugging why task commands suddenly stopped working.