Mirror task lifecycle to serial console

audit/internal/webui/tasks_test.go

@@ -325,6 +325,49 @@ func TestFinalizeTaskRunCreatesReportFolderAndArtifacts(t *testing.T) {
 	}
 }
 
+func TestTaskLifecycleMirrorsToSerialConsole(t *testing.T) {
+	var lines []string
+	prev := taskSerialWriteLine
+	taskSerialWriteLine = func(line string) { lines = append(lines, line) }
+	t.Cleanup(func() { taskSerialWriteLine = prev })
+
+	dir := t.TempDir()
+	q := &taskQueue{
+		statePath: filepath.Join(dir, "tasks-state.json"),
+		logsDir:   filepath.Join(dir, "tasks"),
+		trigger:   make(chan struct{}, 1),
+	}
+	task := &Task{
+		ID:        "task-serial-1",
+		Name:      "CPU SAT",
+		Target:    "cpu",
+		Status:    TaskPending,
+		CreatedAt: time.Now().UTC(),
+	}
+
+	q.enqueue(task)
+	started := time.Now().UTC()
+	task.Status = TaskRunning
+	task.StartedAt = &started
+	job := newTaskJobState(task.LogPath, taskSerialPrefix(task))
+	job.append("Starting CPU SAT...")
+	job.append("CPU stress duration: 60s")
+	job.finish("")
+	q.finalizeTaskRun(task, job)
+
+	joined := strings.Join(lines, "\n")
+	for _, needle := range []string{
+		"queued",
+		"Starting CPU SAT...",
+		"CPU stress duration: 60s",
+		"finished with status=done",
+	} {
+		if !strings.Contains(joined, needle) {
+			t.Fatalf("serial mirror missing %q in %q", needle, joined)
+		}
+	}
+}
+
 func TestResolveBurnPreset(t *testing.T) {
 	tests := []struct {
 		profile string