- Removed all hardcoded API_KEYS from source (env var now REQUIRED)
- Added dual-key transition support (old keys deprecated, logged)
- Model sync: qwen3.5-9b-vlm → gemma-4-12b everywhere
- Dense context: 131K → 262K (all 3 models at 262K)
- Added /admin/keys endpoints for key lifecycle management
- Added ADMIN_KEY env var for admin auth
- Dashboard already synced to gemma-4-12b labels
Deployment: set API_KEYS from phase0-dual-keys.json in docker-compose
Transition: 7 days dual-key, then POST /admin/keys/revoke
