groove-utilities-task-install Outcome The configured task backend is installed and verified reachable. User is informed of what was installed and how to use it. Acceptance Criteria - Backend CLI is available in PATH after install - User is shown a confirmation with the installed version or a reachability check - No-op if Constraints - Read from to determine backend (if the key is still named from an older config, treat it as the storage value). If the key is missing or invalid, you may pause and use so the user can choose a backend ( , , , or ); then ensure is updated accordingly (via or an e…