完善案例库最终验证修正

tests/e2e/sample-flow/page-flow.ts

@@ -1,7 +1,12 @@
 import { mkdirSync, readFileSync, writeFileSync } from "node:fs";
 import { join } from "node:path";
 
-import { expect, type APIRequestContext, type Page } from "@playwright/test";
+import {
+  expect,
+  type APIRequestContext,
+  type Locator,
+  type Page,
+} from "@playwright/test";
 
 import type {
   ArticleSample,
@@ -48,10 +53,15 @@ export async function runSamplePageFlow({
 
   await page.goto(baseURL);
   await fillIfVisible(page, "访问密钥", apiAccessKey);
-  await fillFirstAvailable(page, ["文章内容", "粘贴文章", "正文"], sample.input.body);
+  const bodyField = await fillFirstAvailable(
+    page,
+    ["文章内容", "粘贴文章", "正文"],
+    sample.input.body,
+  );
   await fillIfVisible(page, "图片描述或图片链接", sample.input.image_lines);
   await page.getByLabel("目标平台").selectOption(sample.input.platform);
   await fillIfVisible(page, "用户要求", sample.input.user_instructions);
+  await ensureSubmitEnabled(page, bodyField, sample.input.body);
 
   await page.getByRole("button", { name: "开始优化" }).click();
 
@@ -115,13 +125,31 @@ async function fillFirstAvailable(page: Page, labels: string[], value: string) {
     const locator = page.getByLabel(label);
     if ((await locator.count()) > 0) {
       await locator.fill(value);
-      return;
+      return locator;
     }
   }
 
   throw new Error(`none of these labels were found: ${labels.join(", ")}`);
 }
 
+async function ensureSubmitEnabled(
+  page: Page,
+  bodyField: Locator,
+  body: string,
+) {
+  const submitButton = page.getByRole("button", { name: "开始优化" });
+  for (let attempt = 0; attempt < 4; attempt += 1) {
+    await bodyField.fill("");
+    await bodyField.fill(body);
+    if (await submitButton.isEnabled()) {
+      return;
+    }
+    await page.waitForTimeout(250);
+  }
+  await expect(bodyField).toHaveValue(body);
+  await expect(submitButton).toBeEnabled();
+}
+
 async function fillIfVisible(page: Page, label: string, value: string) {
   const locator = page.getByLabel(label);
   if ((await locator.count()) > 0) {