修正门禁测试定位与动画测量（09-17-company-loan-principal-repayment）

保留原断言、容差及运行配置；两份完整测试定向 61/61 通过，补充可复用规约及失败门禁记录。提交后对固定干净候选重跑 verify-candidate。真实回单、人员与独立业务验收仍待核实；本轮不推送、不部署。

client/tests/e2e/r92-mobile-invoice-usability.spec.ts

@@ -332,7 +332,7 @@ test.describe("R92 手机端票据与报销可用性", () => {
     await expect(page.getByTestId("invoice-pool-table")).toBeHidden();
     await page.getByTestId("invoice-mobile-detail-button").click();
     await expect(page.getByTestId("invoice-detail-panel")).toBeVisible();
-    await expect(page.getByText("票据详情")).toBeVisible();
+    await expect(page.getByRole("heading", { name: "票据详情", exact: true })).toBeVisible();
     await attachScreenshot(page, testInfo, "r97-invoice-pool-mobile.png");
 
     await page.goto("/invoice-pool");