feat(migration): upgrade legacy ps1 scripts to single-binary Golang platform

pkg/daemon/service.go

@@ -0,0 +1,63 @@
+package daemon
+
+import (
+	"context"
+
+	"github.com/kardianos/service"
+	"smart-shutdown/pkg/config"
+	"smart-shutdown/pkg/logger"
+	"smart-shutdown/pkg/monitor"
+)
+
+type program struct {
+	exit   chan struct{}
+	cancel context.CancelFunc
+	cfg    *config.Config
+}
+
+func (p *program) Start(s service.Service) error {
+	// Start should not block. Do the actual work async.
+	logger.Info("准备在后台启动服务监控...")
+
+	ctx, cancel := context.WithCancel(context.Background())
+	p.cancel = cancel
+	p.exit = make(chan struct{})
+
+	go p.run(ctx)
+	return nil
+}
+
+func (p *program) run(ctx context.Context) {
+	// 挂载执行核心循环逻辑
+	monitor.Run(ctx, p.cfg)
+	close(p.exit)
+}
+
+func (p *program) Stop(s service.Service) error {
+	// Stop should not block. Return within a few seconds.
+	logger.Info("正在平滑停止后台服务监控...")
+	if p.cancel != nil {
+		p.cancel()
+	}
+	<-p.exit
+	return nil
+}
+
+// GetService 构建 service 实例供 CLI 控制（安装，启动，停止，卸载）和前台直接 Run。
+func GetService(cfg *config.Config) (service.Service, error) {
+	svcConfig := &service.Config{
+		Name:        "SmartNetworkMonitor",
+		DisplayName: "Smart Network Shutdown Monitor",
+		Description: "A daemon that pings target IP periodically and shuts down the computer if disconnected for too long.",
+	}
+
+	prg := &program{
+		cfg: cfg,
+	}
+
+	s, err := service.New(prg, svcConfig)
+	if err != nil {
+		return nil, err
+	}
+	return s, nil
+}