修复：区分通知加载失败与空列表

tests/review-mailbox.e2e.test.mjs

@@ -0,0 +1,77 @@
+/** 通知摘要失败、加载和空结果必须在真实外壳内明确区分。 */
+import assert from "node:assert/strict";
+import { test } from "node:test";
+import { backendOrigin, login, scenario } from "./helpers/console-browser.mjs";
+
+test("Failed notification summaries expose retry instead of an empty inbox", (t) =>
+  scenario(t, {}, async (page) => {
+    let retry = false;
+    let release;
+    const pending = new Promise((resolve) => (release = resolve));
+    await page
+      .context()
+      .route(`${backendOrigin}/console/v1/client_care/mail`, async (route) => {
+        if (retry) await pending;
+        await route.fulfill({
+          json: retry
+            ? {
+                status: 200,
+                msg: "",
+                data: {
+                  credit_limit: {
+                    count: 1,
+                    list: [
+                      {
+                        id: 7,
+                        title: "待处理通知",
+                        read: 0,
+                        create_time: 1700000000,
+                      },
+                    ],
+                    type: [],
+                  },
+                },
+              }
+            : { status: 503, msg: "通知服务暂不可用", data: {} },
+        });
+      });
+    await login(page);
+    await page.getByRole("button", { name: "查看消息", exact: true }).click();
+    const dialog = page.getByRole("dialog", { name: "事件通知", exact: true });
+    await dialog.getByRole("alert").waitFor();
+    assert.equal(
+      await dialog.getByText("暂无事件通知", { exact: true }).count(),
+      0,
+    );
+    retry = true;
+    await dialog
+      .getByRole("button", { name: "重新加载通知", exact: true })
+      .click();
+    await dialog.getByRole("status").waitFor();
+    assert.equal(await dialog.getByRole("alert").count(), 0);
+    assert.equal(
+      await dialog.getByText("暂无事件通知", { exact: true }).count(),
+      0,
+    );
+    release();
+    await dialog
+      .getByRole("button", { name: "待处理通知", exact: false })
+      .waitFor();
+    assert.equal(await dialog.getByRole("status").count(), 0);
+    return {
+      unavailableNotEmpty: true,
+      pendingNotEmpty: true,
+      explicitRetryRecovered: true,
+    };
+  }));
+
+test("A successful empty notification summary remains a genuine empty inbox", (t) =>
+  scenario(t, {}, async (page) => {
+    await login(page);
+    await page.getByRole("button", { name: "查看消息", exact: true }).click();
+    const dialog = page.getByRole("dialog", { name: "事件通知", exact: true });
+    await dialog.getByText("暂无事件通知", { exact: true }).waitFor();
+    assert.equal(await dialog.getByRole("alert").count(), 0);
+    assert.equal(await dialog.getByRole("status").count(), 0);
+    return { successfulEmptySummary: true, falseFailure: false };
+  }));