Fix HuggingFace cache permission error by setting HF_HOME to /tmp

app.py

@@ -1,5 +1,12 @@
 import os
 import logging
+
+# Fix: Set Hugging Face cache to writable location
+# In containerized environments, /.cache may not be writable
+if "HF_HOME" not in os.environ:
+    os.environ["HF_HOME"] = "/tmp/huggingface"
+    print(f"Set HF_HOME to {os.environ['HF_HOME']}")
+
 # Debug/Fix: Unset CUDA_VISIBLE_DEVICES to ensure all GPUs are visible
 # Some environments (like HF Spaces) might set this to "0" by default.
 if "CUDA_VISIBLE_DEVICES" in os.environ: