perf: Dependency files

backend/apps/chat/api/chat.py

@@ -3,11 +3,10 @@ from fastapi.responses import StreamingResponse
 from sqlmodel import select
 from apps.chat.schemas.chat_base_schema import LLMConfig
 from apps.chat.schemas.chat_schema import ChatQuestion
-from apps.chat.schemas.llm import AgentService, LLMService
+from apps.chat.schemas.llm import AgentService
 from apps.datasource.models.datasource import CoreDatasource
 from apps.system.models.system_model import AiModelDetail
 from common.core.deps import SessionDep
-from sse_starlette.sse import EventSourceResponse
 import json
 import asyncio
 

backend/pyproject.toml

@@ -26,9 +26,9 @@ dependencies = [
     "langgraph>=0.3,<0.4",
     "vllm>=0.8.5",
     "dashscope>=1.14.0,<2.0.0",
-    "sse-starlette>=1.8.0,<2.0.0",
     "pymysql (>=1.1.1,<2.0.0)",
     "cryptography (>=44.0.3,<45.0.0)",
+    "llama_index>=0.12.35"
 ]
 [[tool.uv.index]]
 url = "https://pypi.tuna.tsinghua.edu.cn/simple"