集成三个子图到主Agent架构 + 修复前后端字段不匹配问题

主要变更：
1. 创建 subgraph_tools.py - 将三个子图包装为 LangChain 工具
2. 更新 graph_tools.py - 删除旧工具，添加子图工具
3. 更新系统提示词 - 介绍三个子系统 + RAG 能力
4. 简化 backend.py - 删除独立子图 API 端点
5. 修复 service.py 字段名不匹配问题 - content -> token
6. 前端界面优化 - 移动子图测试到侧边栏、删除测试审核按钮
7. 添加 pyjwt 依赖到 requirements.txt
8. 更新 docker-compose.yml - 添加前端代码挂载

backend/app/agent_subgraphs/common/__init__.py

@@ -17,24 +17,13 @@ from .formatter import (
 )
 
 from .intent import (
-    # 旧版 API（保持向后兼容）
-    IntentType,
-    Intent,
-    Entity,
-    IntentParser,
-    RuleBasedIntentClassifier,
-    RuleBasedEntityExtractor,
-    IntentRegistry,
-    create_default_intent_parser,
-    # 新版 React 模式 API
+    # React 模式 API
     ReasoningAction,
     RetrievalConfig,
     ReasoningResult,
-    BaseIntentReasoner,
-    RuleBasedReactReasoner,
-    LLMReactReasoner,
-    create_react_reasoner,
+    ReactIntentReasoner,
     react_reason,
+    react_reason_async,
     get_route_by_reasoning
 )
 
@@ -60,24 +49,13 @@ __all__ = [
     "TemplateManager",
     "OutputRenderer",
     "PresetTemplates",
-    # intent - 旧版
-    "IntentType",
-    "Intent",
-    "Entity",
-    "IntentParser",
-    "RuleBasedIntentClassifier",
-    "RuleBasedEntityExtractor",
-    "IntentRegistry",
-    "create_default_intent_parser",
-    # intent - 新版 React 模式
+    # intent - React 模式
     "ReasoningAction",
     "RetrievalConfig",
     "ReasoningResult",
-    "BaseIntentReasoner",
-    "RuleBasedReactReasoner",
-    "LLMReactReasoner",
-    "create_react_reasoner",
+    "ReactIntentReasoner",
     "react_reason",
+    "react_reason_async",
     "get_route_by_reasoning",
     # human_review
     "ReviewStatus",