Update rss_processor.py

rss_processor.py

@@ -144,8 +144,8 @@ def process_and_store_articles(articles):
             logger.error(f"Error processing article {article['title']}: {e}")
     try:
         vector_db.add_documents(documents)
-        vector_db.persist()
-        logger.info("Vector DB persisted")
+        # Removed manual persist() as Chroma auto-persists since 0.4.x
+        logger.info("Vector DB updated (auto-persisted)")
     except Exception as e:
         logger.error(f"Error adding documents to vector DB: {e}")
     upload_to_hf_hub()