fix: 修复安装/升级无法重启服务的问题

backend/internal/setup/handler.go

@@ -2,17 +2,15 @@ package setup
 
 import (
 	"fmt"
-	"log"
 	"net/http"
 	"net/mail"
-	"os/exec"
 	"regexp"
-	"runtime"
 	"strings"
 	"sync"
 	"time"
 
 	"sub2api/internal/pkg/response"
+	"sub2api/internal/pkg/sysutil"
 
 	"github.com/gin-gonic/gin"
 )
@@ -346,7 +344,7 @@ func install(c *gin.Context) {
 	go func() {
 		// Wait a moment to ensure the response is sent
 		time.Sleep(500 * time.Millisecond)
-		triggerServiceRestart()
+		sysutil.RestartServiceAsync()
 	}()
 
 	response.Success(c, gin.H{
@@ -355,27 +353,3 @@ func install(c *gin.Context) {
 	})
 }
 
-// triggerServiceRestart attempts to restart the service via systemd
-// This is called after setup completes to switch from setup mode to normal mode
-func triggerServiceRestart() {
-	if runtime.GOOS != "linux" {
-		log.Println("Service restart: not on Linux, manual restart required")
-		return
-	}
-
-	log.Println("Setup completed, triggering service restart...")
-
-	// Try direct systemctl first (works if running as root or with proper permissions)
-	cmd := exec.Command("systemctl", "restart", "sub2api")
-	if err := cmd.Run(); err != nil {
-		// Try with sudo (requires NOPASSWD sudoers entry)
-		sudoCmd := exec.Command("sudo", "systemctl", "restart", "sub2api")
-		if sudoErr := sudoCmd.Run(); sudoErr != nil {
-			log.Printf("Service restart failed: %v (sudo also failed: %v)", err, sudoErr)
-			log.Println("Please restart the service manually: sudo systemctl restart sub2api")
-			return
-		}
-	}
-
-	log.Println("Service restart initiated successfully")
-}