feat: 完成错误原因合同与付款就绪提示（09-05-error-explainability-payment-readiness）

client/tests/e2e/pc-finance-admin-visual-wave4.spec.ts

@@ -81,7 +81,7 @@ async function fulfillApiError(route: Route, status: number, details: Record<str
       error: {
         code: "VALID_001",
         message: "参数校验失败",
-        details,
+        details: { ...details, reasonCode: details.verification === "too_frequent" ? "invoice_verification.too_frequent" : "invoice_verification.attempts_exceeded" },
       },
     }),
   });
@@ -1227,8 +1227,9 @@ test("PC 票据辅助核验错误提示可理解", async ({ page }) => {
   await expect(page.getByTestId("invoice-detail-panel")).toBeVisible();
 
   await page.getByTestId("invoice-trigger-verification").click();
-  await expect(page.getByRole("main").getByText("VALID_001: 验真触发过于频繁，请稍后重试。")).toBeVisible();
+  await expect(page.getByRole("main").getByText("验真触发过于频繁，请稍后重试。", { exact: true })).toBeVisible();
 
   await page.getByTestId("invoice-retry-verification").click();
-  await expect(page.getByRole("main").getByText("VALID_001: 验真重试次数已达上限，请联系财务人工核验。")).toBeVisible();
+  await expect(page.getByRole("main").getByText("验真重试次数已达上限，请联系财务人工核验。", { exact: true })).toBeVisible();
+  await expect(page.getByRole("main").getByText("VALID_001:", { exact: false })).toHaveCount(0);
 });