groove-utilities-task-doctor

Outcome

All task backend health checks pass. User knows if the task backend is correctly configured, installed, and reachable.

Acceptance Criteria

• Each check is reported with ✓ or ✗
• Each failure includes a specific remediation command
• Checks cover config, CLI installation, and reachability

Checks (run in order)

1. .groove/index.md exists at git root
2. tasks.backend key is present and has a valid value (beans, linear, github, or none)
3. If tasks.backend: none — report no-op and exit (all green)
4. Backend CLI is installed:
   • beans: beans version