refactor(socket): decouple command handling and add message sending

- Move command handler to variable for better flexibility
- Add SendMsg function for sending messages through socket
- Fix missing return statements in command execution
- Improve error handling in monitor exception reporting

command/commandParse.go

@@ -50,7 +50,8 @@ func ExecuteCommand(input string) error {
 			err := monitor.AddServiceMonitor(serviceName)
 			if err != nil {
 				return fmt.Errorf("failed to add service monitor: %v", err)
-			}
+			} 
+			return nil
 		}
 	case "monitor.remove":
 		serviceName := getContent(input, "serviceName")
@@ -60,9 +61,11 @@ func ExecuteCommand(input string) error {
 			if err != nil {
 				return fmt.Errorf("failed to remove service monitor: %v", err)
 			}
+			return nil
 		}
 	case "watchdog.shutdown":
 		os.Exit(0)
+		return nil
 	}
 	return fmt.Errorf("unknown command")
 }