- Add keyrings.alt>=5.0 to dependencies (headless Linux keyring backend)
- Add `creds reset --yes` command (deletes all personas + credentials)
- Normalize persona names to lowercase on create/upsert (prevents dupes)
- Bump version 0.9.5 → 0.9.6

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>