feat：完成大部分数据文件上传解析功能

app/processor/nodes/screen_agent_node.py

@@ -7,6 +7,7 @@ import json
 
 from langchain_core.messages import HumanMessage
 
+from app.agent.data_tools import DataContext
 from app.agent.screen_agent import AgentReply, get_screen_agent
 from app.agent.tools import ScreenAgentContext
 from app.processor.base import BaseNode
@@ -53,7 +54,7 @@ class ScreenAgentNode(BaseNode):
             return updated_state
 
         context = state["input_context"]
-        agent = await get_screen_agent()
+        agent = await get_screen_agent(with_data=bool(context.data_files))
         result = await agent.ainvoke(
             {
                 # 会话历史作为此前的对话消息，本次请求是最后一条用户消息
@@ -64,7 +65,11 @@ class ScreenAgentNode(BaseNode):
                     ),
                 ]
             },
-            context=ScreenAgentContext(screen=context.screen, catalog=catalog),
+            context=ScreenAgentContext(
+                screen=context.screen,
+                catalog=catalog,
+                data=DataContext(tuple(context.data_files)),
+            ),
         )
         if result.get("structured_response") is None:
             last = result["messages"][-1]