fixed the cross platform issue

inference_2.py

@@ -38,7 +38,7 @@ import os
 import numpy as np
 
 # Constants
-MODEL_PATH = r"models\ai_detector\pytorch_model.pth"
+MODEL_PATH = os.path.join("models", "ai_detector", "pytorch_model.pth")
 IMG_SIZE = 380
 DEVICE = torch.device("cuda" if torch.cuda.is_available() else "cpu")
 LABEL_MAPPING = {0: "AI-generated", 1: "Human-created"}