Update Dockerfile

Dockerfile

@@ -15,7 +15,7 @@ ENV TRANSFORMERS_CACHE=/app/.cache \
 RUN mkdir -p /app/.cache && chmod -R 777 /app/.cache
 
 # ✅ Ensure ChromaDB can write its persistent database
-RUN mkdir -p /app/policy_vector_db && chmod -R 777 /app/policy_vector_db
+RUN mkdir -p /data/policy_vector_db && chmod -R 777 /data/policy_vector_db
 
 # Copy only the requirements file to leverage Docker cache
 COPY requirements.txt .