fix: always show install-service option regardless of current state

scripts/install.ps1

@@ -801,11 +801,9 @@ function Main-Menu {
     $hasService = $hubExists -or $runnerExists
     $autostartEnabled = ($hubExists -and "$($script:STATUS_AUTOSTART_HUB)" -ne "Disabled") -or ($runnerExists -and "$($script:STATUS_AUTOSTART_RUNNER)" -ne "Disabled")
 
-    if (-not $hasService) {
-        Write-Host "  $i) 安装计划任务 (hub + runner)"
-        $options += "setup_autostart"
-        $i++
-    }
+    Write-Host "  $i) 安装计划任务 (hub + runner)"
+    $options += "setup_autostart"
+    $i++
 
     if ($autostartEnabled) {
         Write-Host "  $i) 禁用开机自启"

scripts/install.sh

@@ -1168,11 +1168,9 @@ main_menu() {
     local autostart_enabled=false
     [[ "$STATUS_AUTOSTART_HUB_ENABLED" == "enabled" || "$STATUS_AUTOSTART_RUNNER_ENABLED" == "enabled" ]] && autostart_enabled=true
 
-    if [[ "$has_service" == false ]]; then
-        echo "  $i) 安装系统服务 (hub + runner)"
-        options+=("setup_autostart")
-        ((i++))
-    fi
+    echo "  $i) 安装系统服务 (hub + runner)"
+    options+=("setup_autostart")
+    ((i++))
 
     if [[ "$autostart_enabled" == true ]]; then
         echo "  $i) 禁用开机自启"