0.4.0

feat: store reviews as per-session jsonl, expose storage path in UI (#1)

- Replace per-file JSON sidecars with one comments.jsonl per review
  session (plan file in plan mode, repo root in diff mode), plus
  meta.json for per-file approval state.
- Each comment now carries the full file path top-level, so JSONL
  records are self-describing.
- Plan and diff web UIs show the storage directory with a copy
  button; redliner status reports it too.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>