Fix D2R region coordinates and HSV calibration from real screenshot

- Health orb: (370,945)-(460,1030) — verified red center RGB(196,18,16)
- Mana orb: (1580,910)-(1670,1000) — verified blue center HSV(228,94,73)
- Health HSV tightened to H 0-10, S 150+, V 150+
- Mana HSV tightened to H 200-240, S 100+, V 80+
- Belt, skill regions also recalibrated
- 720p regions scaled proportionally

pkg/api/api.go

@@ -678,15 +678,15 @@ func (s *Server) getExpectedColorRange(regionName string) *vision.ColorRange {
 	switch regionName {
 	case "health_orb":
 		return &vision.ColorRange{
-			LowerH: 0, UpperH: 30,
-			LowerS: 50, UpperS: 255,
-			LowerV: 30, UpperV: 255,
+			LowerH: 0, UpperH: 10,
+			LowerS: 150, UpperS: 255,
+			LowerV: 150, UpperV: 255,
 		}
 	case "mana_orb":
 		return &vision.ColorRange{
 			LowerH: 200, UpperH: 240,
-			LowerS: 40, UpperS: 255,
-			LowerV: 20, UpperV: 255,
+			LowerS: 100, UpperS: 255,
+			LowerV: 80, UpperV: 255,
 		}
 	default:
 		// For other regions, we don't have specific expected color ranges