完善skills；测试用例生成页面功能初步实现

rag-web-ui/backend/app/services/testing_pipeline/pipeline.py

@@ -4,7 +4,6 @@ from time import perf_counter
 from typing import Any, Dict, List, Optional
 from uuid import uuid4
 
-from app.services.llm.llm_factory import LLMFactory
 from app.services.testing_pipeline.tools import build_default_tool_chain
 
 
@@ -42,6 +41,8 @@ def run_testing_pipeline(
     llm_model = None
     if use_model_generation:
         try:
+            from app.services.llm.llm_factory import LLMFactory
+
             llm_model = LLMFactory.create(streaming=False)
         except Exception:
             llm_model = None