refactor(watchdog): remove tcp socket connection and add local unix sock connection

watchdog/watchdog_build_linux.go

@@ -6,3 +6,13 @@ import "os/exec"
 
 func configureWatchdogCommand(cmd *exec.Cmd) {
 }
+
+func KillWatchdogProcess() error {
+	watchdogName, err := getWatchdogBinaryName()
+	if err != nil {
+		return err
+	}
+	
+	cmd := exec.Command("pkill", "-f", watchdogName)
+	return cmd.Run()
+}