fine-tune from best.pt, 75 epochs, drop drone images

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

main.py

@@ -8,11 +8,11 @@ RUNS_DIR = Path(__file__).parent / "runs"
 
 
 def train():
-    model = YOLO("yolo11x.pt")
+    model = YOLO("runs/pothole/weights/best.pt")
 
     results = model.train(
         data=str(DATASET_YAML),
-        epochs=200,
+        epochs=75,
         imgsz=1280,
         batch=128,
         project=str(RUNS_DIR),