Add startup diagnostics for debugging

app.py

@@ -9,6 +9,29 @@ import numpy as np
 import gradio as gr
 import torch
 from torch import nn
+import os
+
+# ============================================================================
+# DIAGNOSTICS (Log to console for HF Spaces)
+# ============================================================================
+print("--- STARTING APP DIAGNOSTICS ---")
+print(f"CWD: {os.getcwd()}")
+print(f"Files in CWD: {os.listdir('.')}")
+
+model_file = Path("rnn_animals_best.pt")
+if model_file.exists():
+    size = model_file.stat().st_size
+    print(f"Model file found. Size: {size} bytes ({size/1024/1024:.2f} MB)")
+    if size < 2000:
+         print("WARNING: Model file is suspiciously small! Likely an LFS pointer file.")
+         try:
+             with open(model_file, 'r') as f:
+                 print(f"Content preview: {f.read()}")
+         except:
+             pass
+else:
+    print("ERROR: Model file 'rnn_animals_best.pt' NOT FOUND in CWD!")
+print("--- END DIAGNOSTICS ---")
 
 # ============================================================================
 # Model Definition