- config_store.py imported host_db_path from supervise_types (wrong);
it lives in paths.py, matching all other stores (audit, queue, etc.)
- test_stale_checks: two tests expected check_stale called twice
(agent + sidecar) — consolidated arch has no sidecar, so once is
correct; update assertions and remove unused Path import
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>