- Fixed `session_id` never being created or populated; every history row had `NULL` for session.
- Added schema migration (`ALTER TABLE history ADD COLUMN session_id`) for pre-existing databases.
- Wired interactive mode to call `setSessionResolver(...)` so prompts are stamped with the active session at submission time.
- Re-enabled session ranking in `--resume` and in-session pickers via `matchingSessionIds()`, merging fuzzy and prompt-history signals.
