- Region checkboxes now control which overlays are drawn (?regions= param)
- Upload auto-switches capture source (no restart needed)
- State detection: check in-game BEFORE loading, require 90% dark for loading
- Tighten HSV ranges: health H 0-30 S 50+ V 30+, mana H 200-240 S 40+ V 20+
- Add /api/analyze endpoint with per-region color analysis