groove-utilities-onboard Generate a file at the project root — a concise onboarding guide for contributors joining a project that uses groove. Also optionally appends a groove section to if it exists. Outcome New contributors understand how groove works in this project: which commands to run, where logs live, and what the compound loop expects of them. Acceptance Criteria - exists at the project root with project-specific config values substituted - If exists, it contains a "## Using groove" section linking to - Content reflects actual configured values (task backend, git strategy) Steps 1. R…