fix cache issue

Dockerfile

@@ -13,11 +13,20 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY . .
 
 # Create necessary directories
-RUN mkdir -p app/uploads app/data
+RUN mkdir -p app/uploads app/data /app/huggingface_cache
+
+# ----------------------------
+# Add a non-root user (optional but recommended)
+# ----------------------------
+RUN useradd -m -u 1000 user
+RUN chown -R user:user /app
+USER user
 
 # Set environment variables
-ENV PYTHONPATH=/app
-ENV PORT=7860
+ENV PYTHONPATH=/app \
+    PORT=7860 \
+    HF_HOME=/app/huggingface_cache \
+    TRANSFORMERS_CACHE=/app/huggingface_cache
 
 # Expose the port that Hugging Face Spaces expects
 EXPOSE 7860
@@ -27,4 +36,4 @@ HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
     CMD curl -f http://localhost:7860/health || exit 1
 
 # Command to run the FastAPI application
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]