chore: 解决 stash pop 与 device-link 合并冲突并收回本地 WIP

保留 ConnectionHub（deviceLink 导入/ECAT 自启/pmHold 幂等）与主线
WIP（断线清指标、AUTO_POLL=false、boot_ecat 等）。

js/app.js

@@ -31,7 +31,7 @@ import {
   markPhaseDone, setProgress, resetProgress, esp32PhaseLabels
 } from './ota/progress.js';
 import {
-  updateStagesFromRelayState, updateSystemStatusUi
+  updateStagesFromRelayState, updateSystemStatusUi, clearLiveMetricsOnDisconnect
 } from './ota/stages.js';
 import { startEcatLoadPoller } from './ota/ecat_load.js';
 import { deviceLink } from './common/device-link.js';
@@ -45,6 +45,9 @@ import {
   triggerGd32Relay, markGd32OtaUiComplete, stopRelayProgressWatch,
   startRelayProgressWatch, emitRelayProgress, ensureRelayProgressComplete
 } from './ota/upload-gd32.js';
+import {
+  bootEcatProbe, bootEcatFlash, bootEcatAbort, bootEcatPick, bootEcatReboot, refreshBootEcatUi
+} from './ota/boot_ecat.js';
 
 // ==================== 工具函数 ====================
 function formatPercent(value) {
@@ -73,6 +76,9 @@ function updateUploadButtonLabel() {
   var xhrBusy = !!window.isUploading;
   if (esp32Btn) esp32Btn.disabled = !window.esp32File || xhrBusy;
   if (gd32Btn) gd32Btn.disabled = !window.gd32File || xhrBusy;
+  /* EtherCAT 直灌那条通道共用同一块 flash 与同一份已选镜像，可用性在这里一次算完，
+   * 不在 file-handle / progress / console-mode 各抄一遍条件。 */
+  refreshBootEcatUi();
 }
 function resetStageFlow() {
   ['s1', 's2', 's3', 's4', 's5', 's6'].forEach(function (id) {
@@ -91,6 +97,8 @@ function resetStageFlow() {
 function applyDisconnectedRuntimeState() {
   document.getElementById('pillIP').textContent = '--';
   document.getElementById('pillRSSI').textContent = '--';
+  // 断线约 1s（本轮轮询失败）即清实时指标，防止残留旧温度/电压误导
+  clearLiveMetricsOnDisconnect();
   // ★ 状态机守卫：会话活跃时不重置进度/阶段，避免覆盖进行中的 OTA 进度
   if (otaSessionActive()) return;
   // FAILED 态：保留失败进度显示，只清连接胶囊（让用户看到失败原因）
@@ -158,6 +166,7 @@ window.resetProgress = resetProgress;
 
 window.updateStagesFromRelayState = updateStagesFromRelayState;
 window.updateSystemStatusUi = updateSystemStatusUi;
+window.clearLiveMetricsOnDisconnect = clearLiveMetricsOnDisconnect;
 
 window.handleFileSelect = handleFileSelect;
 window.pickFileViaFSAPI = pickFileViaFSAPI;
@@ -179,6 +188,13 @@ window.startRelayProgressWatch = startRelayProgressWatch;
 window.emitRelayProgress = emitRelayProgress;
 window.ensureRelayProgressComplete = ensureRelayProgressComplete;
 
+window.bootEcatProbe = bootEcatProbe;
+window.bootEcatFlash = bootEcatFlash;
+window.bootEcatAbort = bootEcatAbort;
+window.bootEcatPick = bootEcatPick;
+window.bootEcatReboot = bootEcatReboot;
+window.refreshBootEcatUi = refreshBootEcatUi;
+
 // ==================== 挂载 common/* 函数到 window（供 polling.js 等通过 window.* 调用） ====================
 window.formatBytes = formatBytes;
 window.formatTime = formatTime;
@@ -231,6 +247,11 @@ document.addEventListener('click', function (ev) {
     case 'ble-pick-file': var fi = document.getElementById('firmwareFile'); if (fi) fi.click(); break;
     case 'ble-clear-file': if (window.bleOta) window.bleOta.clearFile(); break;
     case 'start-upload': startUpload(arg); break;
+    case 'boot-ecat-probe': bootEcatProbe(true); break;
+    case 'boot-ecat-pick': bootEcatPick(); break;
+    case 'boot-ecat-run': bootEcatFlash(); break;
+    case 'boot-ecat-abort': bootEcatAbort(); break;
+    case 'boot-ecat-reboot': bootEcatReboot(); break;
     case 'restart-esp32': restartEsp32(); break;
     case 'refresh-system-status': refreshSystemStatusNow(ev); break;
   }