From 2d62bf956b60cf15de7a138e7cd5817d7139afce Mon Sep 17 00:00:00 2001
From: root <953994191@qq.com>
Date: Thu, 7 May 2026 01:19:15 +0800
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- 移动 main_graph/tools/ 到 deprecated/main_graph_tools/（旧架构工具）
- 移动 rag_initializer.py 和 retry_utils.py 到 core/
- 清理 main_graph/nodes/ 里的旧节点到 deprecated/
- 修复 backend.py 中 create_serde 导入问题
---
 backend/app/backend.py                                 | 10 +++++++++-
 .../app/{main_graph/utils => core}/rag_initializer.py  |  0
 backend/app/{main_graph/utils => core}/retry_utils.py  |  0
 backend/app/{main_graph/nodes => deprecated}/_utils.py |  0
 .../{main_graph/nodes => deprecated}/error_handling.py |  0
 .../{main_graph/nodes => deprecated}/finalize_new.py   |  0
 .../app/{main_graph/nodes => deprecated}/llm_call.py   |  0
 .../tools => deprecated/main_graph_tools}/__init__.py  |  0
 .../main_graph_tools}/common_tools.py                  |  0
 .../main_graph_tools}/graph_tools.py                   |  0
 .../main_graph_tools}/subgraph_tools.py                |  0
 .../app/{main_graph/nodes => deprecated}/rag_nodes.py  |  0
 .../app/{main_graph/nodes => deprecated}/routing.py    |  0
 .../app/{main_graph/nodes => deprecated}/tool_call.py  |  0
 .../app/{main_graph/nodes => deprecated}/web_search.py |  0
 15 files changed, 9 insertions(+), 1 deletion(-)
 rename backend/app/{main_graph/utils => core}/rag_initializer.py (100%)
 rename backend/app/{main_graph/utils => core}/retry_utils.py (100%)
 rename backend/app/{main_graph/nodes => deprecated}/_utils.py (100%)
 rename backend/app/{main_graph/nodes => deprecated}/error_handling.py (100%)
 rename backend/app/{main_graph/nodes => deprecated}/finalize_new.py (100%)
 rename backend/app/{main_graph/nodes => deprecated}/llm_call.py (100%)
 rename backend/app/{main_graph/tools => deprecated/main_graph_tools}/__init__.py (100%)
 rename backend/app/{main_graph/tools => deprecated/main_graph_tools}/common_tools.py (100%)
 rename backend/app/{main_graph/tools => deprecated/main_graph_tools}/graph_tools.py (100%)
 rename backend/app/{main_graph/tools => deprecated/main_graph_tools}/subgraph_tools.py (100%)
 rename backend/app/{main_graph/nodes => deprecated}/rag_nodes.py (100%)
 rename backend/app/{main_graph/nodes => deprecated}/routing.py (100%)
 rename backend/app/{main_graph/nodes => deprecated}/tool_call.py (100%)
 rename backend/app/{main_graph/nodes => deprecated}/web_search.py (100%)

diff --git a/backend/app/backend.py b/backend/app/backend.py
index 69a48ba..ae63204 100644
--- a/backend/app/backend.py
+++ b/backend/app/backend.py
@@ -20,8 +20,16 @@ from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import StreamingResponse
 from pydantic import BaseModel
 from langgraph.checkpoint.postgres.aio import AsyncPostgresSaver
-from .agent.agent_service import AIAgentService, create_serde
+from .agent.agent_service import AIAgentService
 from .agent.history import ThreadHistoryService
+
+
+def create_serde():
+    """创建序列化器用于 Postgres Checkpointer"""
+    from langgraph.checkpoint.serde.jsonplus import JsonPlusSerializer
+    return JsonPlusSerializer()
+
+
 from backend.app.core.human_review import (
     ReviewManager,
     InMemoryReviewStore,
diff --git a/backend/app/main_graph/utils/rag_initializer.py b/backend/app/core/rag_initializer.py
similarity index 100%
rename from backend/app/main_graph/utils/rag_initializer.py
rename to backend/app/core/rag_initializer.py
diff --git a/backend/app/main_graph/utils/retry_utils.py b/backend/app/core/retry_utils.py
similarity index 100%
rename from backend/app/main_graph/utils/retry_utils.py
rename to backend/app/core/retry_utils.py
diff --git a/backend/app/main_graph/nodes/_utils.py b/backend/app/deprecated/_utils.py
similarity index 100%
rename from backend/app/main_graph/nodes/_utils.py
rename to backend/app/deprecated/_utils.py
diff --git a/backend/app/main_graph/nodes/error_handling.py b/backend/app/deprecated/error_handling.py
similarity index 100%
rename from backend/app/main_graph/nodes/error_handling.py
rename to backend/app/deprecated/error_handling.py
diff --git a/backend/app/main_graph/nodes/finalize_new.py b/backend/app/deprecated/finalize_new.py
similarity index 100%
rename from backend/app/main_graph/nodes/finalize_new.py
rename to backend/app/deprecated/finalize_new.py
diff --git a/backend/app/main_graph/nodes/llm_call.py b/backend/app/deprecated/llm_call.py
similarity index 100%
rename from backend/app/main_graph/nodes/llm_call.py
rename to backend/app/deprecated/llm_call.py
diff --git a/backend/app/main_graph/tools/__init__.py b/backend/app/deprecated/main_graph_tools/__init__.py
similarity index 100%
rename from backend/app/main_graph/tools/__init__.py
rename to backend/app/deprecated/main_graph_tools/__init__.py
diff --git a/backend/app/main_graph/tools/common_tools.py b/backend/app/deprecated/main_graph_tools/common_tools.py
similarity index 100%
rename from backend/app/main_graph/tools/common_tools.py
rename to backend/app/deprecated/main_graph_tools/common_tools.py
diff --git a/backend/app/main_graph/tools/graph_tools.py b/backend/app/deprecated/main_graph_tools/graph_tools.py
similarity index 100%
rename from backend/app/main_graph/tools/graph_tools.py
rename to backend/app/deprecated/main_graph_tools/graph_tools.py
diff --git a/backend/app/main_graph/tools/subgraph_tools.py b/backend/app/deprecated/main_graph_tools/subgraph_tools.py
similarity index 100%
rename from backend/app/main_graph/tools/subgraph_tools.py
rename to backend/app/deprecated/main_graph_tools/subgraph_tools.py
diff --git a/backend/app/main_graph/nodes/rag_nodes.py b/backend/app/deprecated/rag_nodes.py
similarity index 100%
rename from backend/app/main_graph/nodes/rag_nodes.py
rename to backend/app/deprecated/rag_nodes.py
diff --git a/backend/app/main_graph/nodes/routing.py b/backend/app/deprecated/routing.py
similarity index 100%
rename from backend/app/main_graph/nodes/routing.py
rename to backend/app/deprecated/routing.py
diff --git a/backend/app/main_graph/nodes/tool_call.py b/backend/app/deprecated/tool_call.py
similarity index 100%
rename from backend/app/main_graph/nodes/tool_call.py
rename to backend/app/deprecated/tool_call.py
diff --git a/backend/app/main_graph/nodes/web_search.py b/backend/app/deprecated/web_search.py
similarity index 100%
rename from backend/app/main_graph/nodes/web_search.py
rename to backend/app/deprecated/web_search.py