feat: add MaiSaka real-time chat flow monitoring component and WebSocket event handling

- Implemented the MaiSakaMonitor component for real-time monitoring of chat flow using WebSocket.
- Created a custom hook `useMaisakaMonitor` to manage WebSocket subscriptions and event states.
- Developed a backend module for broadcasting various monitoring events through WebSocket.
- Added serialization functions for messages and tool calls to optimize data transmission.
- Included event emission functions for session start, message ingestion, cycle start, timing gate results, planner requests/responses, tool executions, and replier requests/responses.

dashboard/src/components/layout/constants.ts

@@ -36,7 +36,7 @@ export const menuSections: MenuSection[] = [
       { icon: LayoutGrid, label: 'sidebar.menu.configTemplate', path: '/config/pack-market' },
       { icon: Sliders, label: 'sidebar.menu.pluginConfig', path: '/plugin-config' },
       { icon: FileSearch, label: 'sidebar.menu.logViewer', path: '/logs', searchDescription: 'search.items.logsDesc' },
-      { icon: Activity, label: 'sidebar.menu.plannerMonitor', path: '/planner-monitor' },
+      { icon: Activity, label: 'sidebar.menu.maisakaMonitor', path: '/planner-monitor' },
       { icon: MessageSquare, label: 'sidebar.menu.localChat', path: '/chat' },
     ],
   },