Windowed module protocol: every op admitted inside a 3.4s window after the firmware's observed temp poll (cadence 3.5-4.2s measured, stuck-at-last-fetch stale mechanism proven and avoided), acquire/window with panic on dead heartbeat; noise column shows green on/off cycle phase, cable-missing state unchanged

main.go

@@ -354,7 +354,7 @@ func (d *direction) displayView() view {
 // The same figures the panel draws, in the same order: the last second as
 // rates and error flags with the noise cable riding at the end of them, then
 // everything since the reset.
-func totalRow(elapsed time.Duration, v view, target float64, phy phyDisplay, noiseMissing uint64) []string {
+func totalRow(elapsed time.Duration, v view, target float64, phy phyDisplay, nv noiseView) []string {
 	return []string{
 		rateCell(v.rxGbps*1e9, target*1e9),
 		scaleSI(v.rxPPS),
@@ -364,7 +364,7 @@ func totalRow(elapsed time.Duration, v view, target float64, phy phyDisplay, noi
 		flagCell(v.window.link),
 		flagCell(v.window.internal),
 		correctedFlag(phy.recent),
-		flagCell(noiseMissing),
+		noiseCell(nv),
 		scaleTime(elapsed),
 		scaleCount(v.rxFrames),
 		scaleCount(v.rxBytes),
@@ -784,7 +784,7 @@ func run(aName, bName string) (err error) {
 			}
 			v, phy := measureView(diag, modules, totalView(views))
 			if err := disp.render(v, now.Sub(start), phy,
-				noise.missing()); err != nil {
+				noise.view()); err != nil {
 				return err
 			}
 		case now := <-tick.C:
@@ -794,7 +794,7 @@ func run(aName, bName string) (err error) {
 			}
 			v, phy := measureView(diag, modules, totalView(rows))
 			for _, line := range stats.emit(totalRow(elapsed, v, target, phy,
-				noise.missing())) {
+				noise.view())) {
 				fmt.Println(line)
 			}
 		}