Fix model path configuration to prevent duplicate directory

- Set path='.' and model_dir='models' explicitly
- Prevents fastai from looking in models/models/model.pth
- Now correctly loads from ./models/model.pth

app/app_savta.py

@@ -60,7 +60,8 @@ learner = unet_learner(
     resnet34,
     n_out=3,
     loss_func=MSELossFlat(),
-    path="models/",
+    path=".",
+    model_dir="models",
 )
 learner.load("model")