测试：消除监控样本的时区依赖并准确记录零值验收

tests/review-instance-metrics.e2e.test.mjs

@@ -13,7 +13,7 @@ import {
 
 async function instanceBoundary(
   page,
-  { module = "mf_cloud", value = 50, time = 1793836800 } = {},
+  { module = "mf_cloud", value = 50, time } = {},
 ) {
   const state = { value, quotes: [], chartReads: 0 };
   const times = [
@@ -21,7 +21,11 @@ async function instanceBoundary(
     "2026-11-06 08:00:00",
     "2026-11-07 08:00:00",
   ];
-  const epoch = time;
+  // 秒级接口按浏览器本地08:00造样本，与字符串时间接口一致，不依赖执行机时区。
+  const epoch =
+    time === undefined
+      ? await page.evaluate(() => new Date(2026, 10, 5, 8).getTime() / 1000)
+      : time;
   await page.context().route(`${backendOrigin}/console/v1/**`, (route) => {
     const request = route.request();
     const url = new URL(request.url());
@@ -266,7 +270,7 @@ test(
 
 for (const module of ["mf_cloud", "remf_finance", "kky_ecs"]) {
   test(
-    `real zero ${module} measurements remain visible in overview and monitor`,
+    `real zero ${module} CPU remains visible alongside other metric charts`,
     { timeout: 30000 },
     (t) =>
       scenario(t, {}, async (page) => {
@@ -290,7 +294,13 @@ for (const module of ["mf_cloud", "remf_finance", "kky_ecs"]) {
           page.locator(".mon .chart-viewport").first(),
           "0%",
         );
-        return { module, observedZeroRings: 2, observedZeroCharts: 4, tooltip };
+        return {
+          module,
+          observedZeroRings: 2,
+          renderedMetricCharts: 4,
+          observedCpuZero: true,
+          tooltip,
+        };
       }),
   );
 }