fix(lightrag): 修复 lightrag 知识库 embedding dim 的错误 Fixes: Error: 知识库上传PDF检索测试失败

Fixes #498 Error: ValueError: Embedding dimension mismatch detected: total elements (1024) cannot be evenly divided by expected dimension (1536)
Fixes #491

src/knowledge/implementations/lightrag.py

@@ -1,5 +1,6 @@
 import os
 import traceback
+from functools import partial
 
 from lightrag import LightRAG, QueryParam
 from lightrag.kg.shared_storage import initialize_pipeline_status
@@ -222,8 +223,9 @@ class LightRagKB(KnowledgeBase):
         return EmbeddingFunc(
             embedding_dim=config_dict["dimension"],
             max_token_size=8192,
-            func=lambda texts: openai_embed(
-                texts=texts,
+            model_name=model_name,
+            func=partial(
+                openai_embed.func,
                 model=model_name,
                 api_key=config_dict["api_key"],
                 base_url=config_dict["base_url"].replace("/embeddings", ""),