pub fn doctor_report_for_instance(
data_dir: &Path,
) -> Result<DoctorReport, String>Expand description
doctor_report for the running instance’s own registry and resolved
shared store / home — what GET /api/v1/muxspect/migrations serves.
Err when the shared root can’t be resolved at all (no
AGENTMUX_SHARED_DIR, CI), the same condition under which
run_migrate_command treats migrations as a no-op.