Session Cleanup

Automated cleanup of OpenClaw session storage across all registered agents.

What It Cleans

1. Tombstone files — .reset.*, .deleted.*, .bak-* (always safe to remove)
2. Old cron sessions — .jsonl files + sessions.json entries older than 7 days for cron-type sessions
3. Orphan files — .jsonl files on disk not referenced by sessions.json
4. Stale entries — sessions.json entries pointing to missing .jsonl files (cron sessions only)

Safety Guarantees

• Never touches .lock files or their corresponding active .jsonl
• Never deletes sessions.json itself
• Backs up sessions.json before modifying
• Never removes non-cron sessions under 30 days old
• Never removes main session entries