fix: tolerate unavailable CPU sensor telemetry

audit/internal/platform/sat_test.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"strconv"
 	"strings"
 	"testing"
 	"time"
@@ -719,6 +720,42 @@ func TestCPUSATJobsIncludeThrottleCheck(t *testing.T) {
 	if jobs[5].name != "05-thermal-throttle-check.log" || jobs[5].informational {
 		t.Fatalf("throttle-check job=%+v want non-informational so it can fail overall_status", jobs[5])
 	}
+	for _, index := range []int{1, 4} {
+		if jobs[index].cmd[0] != "sh" || jobs[index].cmd[1] != "-c" || !strings.Contains(jobs[index].cmd[2], "No sensors found!") {
+			t.Fatalf("sensors job=%+v want probe that tolerates unavailable local hwmon", jobs[index])
+		}
+	}
+}
+
+func TestCPUSensorsProbeScript(t *testing.T) {
+	run := func(t *testing.T, output string, rc int) ([]byte, error) {
+		t.Helper()
+		binDir := t.TempDir()
+		mockSensors := filepath.Join(binDir, "sensors")
+		script := "#!/bin/sh\nprintf '%s\\n' '" + output + "'\nexit " + strconv.Itoa(rc) + "\n"
+		if err := os.WriteFile(mockSensors, []byte(script), 0755); err != nil {
+			t.Fatalf("write mock sensors: %v", err)
+		}
+		t.Setenv("PATH", binDir+":"+os.Getenv("PATH"))
+		return exec.Command("sh", "-c", cpuSensorsProbeScript()).CombinedOutput()
+	}
+
+	t.Run("no hardware-monitoring device is non-fatal", func(t *testing.T) {
+		out, err := run(t, "No sensors found!", 1)
+		if err != nil {
+			t.Fatalf("probe failed: %v; output=%s", err, out)
+		}
+		if !strings.Contains(string(out), "telemetry is unavailable") {
+			t.Fatalf("output=%s want unavailable telemetry annotation", out)
+		}
+	})
+
+	t.Run("unexpected sensors failure remains fatal", func(t *testing.T) {
+		out, err := run(t, "i2c read failed", 1)
+		if err == nil {
+			t.Fatalf("probe unexpectedly succeeded; output=%s", out)
+		}
+	})
 }
 
 // TestCPUThrottleCheckDetectsIncreaseDuringRun runs the real before/check