- Migration 0025: kiosk_nfc_uid column on users table with partial unique index per company
- User model: kiosk_nfc_uid field after personnel_number
- New service: kiosk_session_service.py (Redis-based 15min sessions)
- New core module: app/core/redis.py (sync Redis client with ping-test)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
