🐞 fix: fix error

Author: hcd233

src/engine/embedding/sentence_transformer.py

@@ -63,7 +63,7 @@ def _invoke(self, sentences: List[str]) -> List[EmbeddingResult]:
         return [EmbeddingResult(embedding=embedding, index=i, object="embedding") for i, embedding in enumerate(embeddings)]
 
     async def invoke(self, sentences: List[str]) -> List[EmbeddingResult]:
-        return await asyncio.to_thread(self.invoke, sentences)
+        return await asyncio.to_thread(self._invoke, sentences)
 
     async def stream(self, sentences: List[str]) -> List[EmbeddingResult]:
         raise NotImplementedError(f"{self.__class__.__name__} does not implement `stream` method")