fix(utils): 修复正则表达式以正确提取包含中文的内容

src/chat/utils/utils.py

@@ -428,7 +428,7 @@ def process_llm_response(text: str, enable_splitter: bool = True, enable_chinese
     protected_text, special_blocks_mapping = protect_special_blocks(protected_text)
 
     # 提取被 () 或 [] 或 （）包裹且包含中文的内容
-    pattern = re.compile(r"[(\[（](?=.*[一-鿿]).*?[)\]）]")
+    pattern = re.compile(r"[(\[（](?=.*[一-鿿]).+?[)\]）]")
     _extracted_contents = pattern.findall(protected_text)
     cleaned_text = pattern.sub("", protected_text)