Per review #320 comments:
- Rename _sv() → get_supervise_mod() in both store files (review 206/211)
- Move _audit_entry_from_row onto AuditStore as _row_to_entry static method
(review 208); move _proposal/_response_from_row onto QueueStore (review 211)
- Remove _host_db_path() free function; inline into __init__ (review 209/211)
- Add stdlib migration runner using a shared schema_versions table; each store
tracks its own version under a module key so they can coexist in the same DB
without clobbering a shared PRAGMA user_version (reviews 210/212/213)
- PRD: add goal 6 (migration runner), narrow non-goal to third-party ORM only
didericis-claude
didericis-codex