service

type Service struct {
	Name        string
	Description string
	Command     string
	Args        []string
	After       []string // Services this depends on
	Type        string   // "oneshot" or "daemon"
	Restart     string   // "always", "on-failure", "never"
	Environment map[string]string
	TTY         string // TTY device path (e.g., "/dev/tty1"), empty for init's stdio

	// Runtime state
	Process *os.Process
	Started bool
	Failed  bool
	Retries int // Number of consecutive restart attempts after failure
}