Fixed naming issue with is_evovlved and removed duplicate _is_evolved() call

app/services/ocr_service.py

@@ -90,7 +90,7 @@ class OCRService:
             "moves": self._extract_moves(moves_region),
             "length": self._extract_length(length_weight_region),
             "weight": self._extract_weight(length_weight_region),
-            "is_evolved": self._is_evolved(image)
+            "is_evolved": evolved
         }
 
 
@@ -248,7 +248,7 @@ class OCRService:
             "HP":            "blue",
             "Length/Weight": "orange",
             "Moves":         "green",
-            "Is Evolved":    "black"
+            "is_evolved":    "black"
         }
 
         for label, box in regions.items():