Update app.py

app.py

@@ -5,6 +5,11 @@ import uuid
 import chromadb
 from chromadb.config import Settings
 import httpx
+import os
+
+# Fix: Set custom writable Hugging Face cache directory
+os.environ["TRANSFORMERS_CACHE"] = "/app/cache"
+os.makedirs("/app/cache", exist_ok=True)
 
 # Initialize FastAPI
 app = FastAPI()