feat(logging): add real-time log streaming via websocket

- Implement WebSocket endpoint for streaming logs to clients
- Add log broadcaster to manage client connections and history
- Update documentation with new WebSocket API details
- Include gorilla/websocket dependency for WebSocket support

router.go

@@ -10,6 +10,8 @@ func setupRoutes() {
 	postLog.Info("Setting up routes...")
 	http.HandleFunc("/system/getStatus", GetStatusHandler)
 	http.HandleFunc("/system/getSoftwareInfo", GetSoftwareInfoHandler)
+	logHandler := postLog.NewLogSocketHandler(postLog.GetLogBroadcaster())
+	http.HandleFunc("/system/getLogs", logHandler.Handle)
 
 	http.HandleFunc("/register", RegisterHandler)
 	http.HandleFunc("/login", LoginHandler)