feat(rag): Implement auto-indexing and status indicators

src/rag_engine.py

@@ -80,6 +80,15 @@ class RAGEngine:
   else:
    raise ValueError(f"Unknown vector store provider: {vs_config.provider}")
 
+ def is_empty(self) -> bool:
+  if not self.config.enabled:
+   return True
+  if self.config.vector_store.provider == 'mock' or self.collection == "mock":
+   return True
+  if self.collection is None:
+   return True
+  return self.collection.count() == 0
+
  def add_documents(self, ids: List[str], texts: List[str], metadatas: Optional[List[Dict[str, Any]]] = None):
   if not self.config.enabled or self.collection == "mock":
    return