新增 auto-check 工具：网段扫描+SSH登录+压力测试永久循环工作流

- pkg/discovery: TCP端口探测存活主机，ARP表解析MAC作为设备唯一标识
- pkg/sshclient: SSH连接(密码/密钥认证)与远程命令执行
- pkg/stress: stress-ng/stressapptest 压测(cpu/memory/disk/memnative/full)+温度与dmesg监控
- pkg/report: 检测报告生成(文本/JSON)
- pkg/workflow: 永久循环工作流(间隔可配)，MAC唯一标识设备，增量测试+状态变化打印
- pkg/config: YAML分类配置(scan/ssh/stress/report/workflow)
- cmd: cobra入口，仅 --config 指定配置文件

auto-check/pkg/stress/runner.go

@@ -0,0 +1,141 @@
+package stress
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+)
+
+// Runner 压力测试调度器
+type Runner struct {
+	Config  Config
+	Types   []TestType
+	Executor Executor
+}
+
+// NewRunner 创建调度器
+func NewRunner(cfg Config, types []TestType, executor Executor) *Runner {
+	return &Runner{
+		Config:  cfg,
+		Types:   types,
+		Executor: executor,
+	}
+}
+
+// Run 执行压力测试（单台主机）
+func (r *Runner) Run(client *ssh.Client, ip string) *Report {
+	report := &Report{IP: ip, StartTime: time.Now()}
+	fmt.Printf("\n════════ [%s] 压力测试开始 ════════\n", ip)
+
+	// 系统信息探测
+	info := ProbeSystem(client, r.Executor)
+	fmt.Printf("  主机: %s | CPU: %s (%s核) | 内存: %s | 内核: %s\n",
+		info.Hostname, info.CPUModel, info.CPUCores, info.MemTotal, info.KernelVer)
+
+	// 启动温度监控
+	tempMon := NewTempMonitor(client, r.Executor, r.Config.TempLogInt)
+	tempMon.Start()
+
+	// 启动 dmesg 监控
+	dmesgMon := NewDmesgMonitor(client, r.Executor)
+	dmesgMon.Start()
+
+	// 逐项执行测试
+	for _, t := range r.Types {
+		fmt.Printf("\n  ── 开始: %s ──\n", t)
+		var res Result
+
+		switch t {
+		case TestCPU:
+			res = CPUStress(client, r.Executor, r.Config)
+		case TestMemory:
+			res = MemoryStress(client, r.Executor, r.Config)
+		case TestDiskIO:
+			res = DiskIOStress(client, r.Executor, r.Config)
+		case TestMemNative:
+			res = MemNativeStress(client, r.Executor, r.Config)
+		case TestFull:
+			res = FullStress(client, r.Executor, r.Config)
+		default:
+			res = Result{Type: t, Status: "skip", Error: fmt.Sprintf("未知测试类型: %s", t)}
+		}
+
+		report.AddResult(res)
+		fmt.Printf("  ── 完成: %s [%s] %s ──\n", t, res.Status, res.Duration.Round(time.Millisecond))
+	}
+
+	// 停止监控，收集结果
+	tempLogs := tempMon.Stop()
+	dmesgErrors := dmesgMon.Stop()
+
+	// 添加温度报告
+	if len(tempLogs) > 0 {
+		maxTemp := ""
+		for _, line := range tempLogs {
+			// 提取温度值
+			parts := strings.Fields(line)
+			for _, p := range parts {
+				if strings.HasSuffix(p, "°C") || strings.HasSuffix(p, "C") {
+					maxTemp = p
+				}
+			}
+		}
+		tempSummary := fmt.Sprintf("采样 %d 次", len(tempLogs))
+		if maxTemp != "" {
+			tempSummary += ", 最高温度: " + maxTemp
+		}
+		status := "pass"
+		if strings.Contains(strings.ToLower(strings.Join(tempLogs, " ")), "throttl") {
+			status = "fail"
+			tempSummary += " [检测到降频!]"
+		}
+		report.AddResult(Result{
+			Type:     MonitorTemp,
+			Status:   status,
+			Output:   tempSummary,
+			Duration: time.Since(report.StartTime),
+		})
+	}
+
+	// 添加 dmesg 报告
+	if len(dmesgErrors) > 0 {
+		report.AddResult(Result{
+			Type:     MonitorDmesg,
+			Status:   "fail",
+			Output:   fmt.Sprintf("检测到 %d 条硬件相关报错:\n%s", len(dmesgErrors), strings.Join(dmesgErrors[:min(10, len(dmesgErrors))], "\n")),
+			Duration: time.Since(report.StartTime),
+		})
+	} else {
+		report.AddResult(Result{
+			Type:     MonitorDmesg,
+			Status:   "pass",
+			Output:   "无硬件相关内核报错",
+			Duration: time.Since(report.StartTime),
+		})
+	}
+
+	report.EndTime = time.Now()
+	report.Duration = report.EndTime.Sub(report.StartTime)
+
+	fmt.Printf("\n════════ [%s] 压力测试完成 ════════\n", ip)
+	fmt.Println(report.ToText())
+	return report
+}
+
+// RunAll 对多台主机执行压力测试
+func (r *Runner) RunAll(clients map[string]*ssh.Client) []*Report {
+	var reports []*Report
+	for ip, client := range clients {
+		reports = append(reports, r.Run(client, ip))
+	}
+	return reports
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}