Fix HF authentication for model loading during tests

.github/workflows/deploy.yml

@@ -21,6 +21,8 @@ jobs:
         pip install -r requirements.txt
         
     - name: Run Tests
+      env:
+        HF_TOKEN: ${{ secrets.HF_TOKEN }}
       run: |
         PYTHONPATH=. pytest tests/
 

app/model.py

@@ -1,8 +1,15 @@
 from transformers import pipeline
+from huggingface_hub import login
 import logging
+import os
 
 logger = logging.getLogger(__name__)
 
+# Login with token if available
+hf_token = os.environ.get("HF_TOKEN")
+if hf_token:
+    login(token=hf_token)
+
 # Using a robust Sinhala sentiment analysis model from Hugging Face
 MODEL_NAME = "keshan/sinhala-sentiment-analysis"
 sentiment_pipeline = None