修复bug

tools/erp-session-keepalive.test.mjs

@@ -25,6 +25,19 @@ function loadPopupBusinessUrlMatcher(popupSource) {
   return context.isBusinessSystemUrl;
 }
 
+function loadKeepaliveStateNormalizer(backgroundSource) {
+  const start = backgroundSource.indexOf('function normalizeErpKeepaliveState');
+  const end = backgroundSource.indexOf('async function readErpKeepaliveState', start);
+  assert.ok(start >= 0 && end > start, 'background must expose the keepalive state normalizer');
+  const context = {};
+  vm.runInNewContext(
+    `${backgroundSource.slice(start, end)}\nthis.normalizeErpKeepaliveState = normalizeErpKeepaliveState;`,
+    context,
+    { filename: 'background-keepalive-state.js' }
+  );
+  return context.normalizeErpKeepaliveState;
+}
+
 test('production control-plane origin is recognized and bridge injection is permitted', async () => {
   const [manifestText, background, popup] = await Promise.all([
     read('chrome-extension/ltjt-order-assistant/manifest.json'),
@@ -105,6 +118,34 @@ test('ERP exception recovery refreshes the existing ERP tab once, then performs
   assert.doesNotMatch(recoveryBody, /captureAjaxSubmit|SubmitInfoForm|DoInfo/);
 });
 
+test('an interrupted service worker recovery cannot leave ERP dispatch permanently blocked', async () => {
+  const background = await read('chrome-extension/ltjt-order-assistant/background.js');
+  const normalizeErpKeepaliveState = loadKeepaliveStateNormalizer(background);
+  const persistedRunning = {
+    last_status: 'running',
+    recovery_status: 'running',
+    recovery_attempt_at: '2026-08-29T12:00:00.000Z',
+    recovery_completed_at: '',
+    recovery_error: ''
+  };
+
+  const active = normalizeErpKeepaliveState(persistedRunning, true);
+  assert.equal(active.last_status, 'running');
+  assert.equal(active.recovery_status, 'running');
+
+  const interrupted = normalizeErpKeepaliveState(persistedRunning, false);
+  assert.equal(interrupted.last_status, 'interrupted');
+  assert.equal(interrupted.recovery_status, 'interrupted');
+  assert.equal(interrupted.recovery_error, 'erp_link_recovery_interrupted');
+
+  const keepaliveBody = background.slice(
+    background.indexOf('async function runErpSessionKeepalive'),
+    background.indexOf('async function ensureErpSessionKeepaliveAlarm')
+  );
+  assert.match(keepaliveBody, /success && !erpLinkRecoveryInFlight/);
+  assert.match(keepaliveBody, /recovery_status: 'idle'/);
+});
+
 test('keepalive setting and last probe state are visible without changing the business operation contract', async () => {
   const [background, bridge, popup, popupHtml] = await Promise.all([
     read('chrome-extension/ltjt-order-assistant/background.js'),