Port from OpenClaw:
- session-write-lock: file-level write lock with atomic creation, reference
counting, stale lock detection, and process cleanup handlers
- session-file-repair: auto-detect and repair malformed JSONL lines with
backup and atomic rename
- session-transcript-repair: fix tool call/result pairing issues including
displaced results, duplicates, orphans, and missing inputs
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>