chore: bump @hatk/hatk to 0.0.1-alpha.62
Picks up RFC 6749 invalid_grant response on /oauth/token so iOS
clients can detect terminally-rejected refresh tokens and force
re-auth instead of getting stuck on the legacy 500 response.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>