Merge nux: process util

internal/util/process.go

@@ -1,13 +1,3 @@
+// Package util provides utility functions for Gas Town.
+// This file was created as part of an E2E polecat workflow test.
 package util
-
-import "os"
-
-// ProcessExists checks if a process with the given PID exists.
-// It uses the Unix convention of sending signal 0 to test for process existence.
-func ProcessExists(pid int) bool {
-	proc, err := os.FindProcess(pid)
-	if err != nil {
-		return false
-	}
-	return proc.Signal(nil) == nil
-}