v4.31.1

Added

• feat: ship agent skills inside the package #2866 (subhankarmaiti)

Fixed

• fix(anonymous-sessions): surface session expiry error instead of silently rotating #2879 (yogeshchoudhary147)
• fix: pass request cookies in startEnterpriseLogin to evict stale txn cookies #2868 (kwy404)

Summary by CodeRabbit

• New Features
  • Added anonymous-session support, including session creation and retrieval, a client hook, and login linking.
  • The package now ships agent skills.
• Bug Fixes
  • Anonymous-session expiry errors are now surfaced.
  • Enterprise login now passes request cookies to clear stale transaction cookies.
• Documentation
  • Updated API documentation for version 4.31.1 and added anonymous-session references.