Implement Report Agent for automated report generation and interaction

- Introduced the Report Agent module to facilitate the automatic generation of simulation analysis reports using LangChain and Zep, following the ReACT model.
- Added functionality for report outline planning, segmented content generation, and user interaction through a dialogue interface.
- Implemented new API endpoints for report generation, status checking, and retrieval, enhancing the overall reporting capabilities.
- Updated README.md to include detailed instructions on the new report generation features and API usage.
- Enhanced the project structure to accommodate the new report management functionalities, including report storage and retrieval mechanisms.

backend/app/__init__.py

@@ -63,9 +63,10 @@ def create_app(config_class=Config):
         return response
     
     # 注册蓝图
-    from .api import graph_bp, simulation_bp
+    from .api import graph_bp, simulation_bp, report_bp
     app.register_blueprint(graph_bp, url_prefix='/api/graph')
     app.register_blueprint(simulation_bp, url_prefix='/api/simulation')
+    app.register_blueprint(report_bp, url_prefix='/api/report')
     
     # 健康检查
     @app.route('/health')