Dashboard automatically updates based on changes

[KNChiu]

File changes trigger refresh

1. File System Monitor/Polling File Change Detected
2. clearManagerCaches() Clear cache of the corresponding manager
3. broadcastUpdate() Send update notification to the client
4. Client Receive notifications and re-get data
5. Manager Read the latest file content from disk (cache cleared)

File modification → Detect changes → Clear cache → Broadcast update → Client refresh → Get the latest data