58f11302fe
Track authenticated sessions per device (parsing user-agent for desktop vs mobile via mileusna/useragent), enforce configurable concurrent device limits (Auth.DeviceLimits), and surface device status and "remove other devices" management in the account dialog. Adds device/session context to the auth module stores and exposes limits through the API. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>