Record structured pi-ca-leash extension feedback in .pi-ca-leash/log.md.
- Use `extension_log` for product friction, confusing UX, missing guidance, brittle flows, poor defaults, repeated agent mistakes caused by the extension, or runtime behavior that should be smoothed.
- Do not use it for normal task notes, user project TODOs, or every expected runtime failure.
- Do not log secrets, credentials, full private transcripts, or unnecessary user-private content.
- Keep entries concise and actionable.