v2.3.1

Fixed

• Serialized process-global account rotation so concurrent chats reuse the working account selected by the first rotation.
• Rebind stale ACP sessions on unknown session id, agent restart/process exit, and headless-auth initialization errors without rotating functional accounts.
• Propagate credential-driven restarts to every chat runtime and delay new session binding until account candidate validation completes.

Verification

• npm run typecheck
• npm test — 40 passed