fix(e2e): 修复步骤标题选择器和generation tasks API路径

apps/web/e2e/core-generation.spec.ts

@@ -169,7 +169,7 @@ test.describe("Core generation flow", () => {
     await page.getByRole("button", { name: "下一步" }).click();
 
     // Step 2: select material
-    await expect(page.getByText("选择素材")).toBeVisible();
+    await expect(page.getByRole("heading", { name: /选择素材/ })).toBeVisible();
     const librarySelect = page.locator("select").first();
     await librarySelect.selectOption({ label: libraryName });
     const materialLabel = page.getByText(sourceFileName).locator("..");
@@ -178,19 +178,19 @@ test.describe("Core generation flow", () => {
     await page.getByRole("button", { name: "下一步" }).click();
 
     // Step 3: title
-    await expect(page.getByText("选择标题")).toBeVisible();
+    await expect(page.getByRole("heading", { name: /选择标题/ })).toBeVisible();
     const titleText = `E2E Test ${suffix}`;
     await page.getByPlaceholder("输入自定义标题…").fill(titleText);
     await page.getByRole("button", { name: "下一步" }).click();
 
     // Step 4: voice
-    await expect(page.getByText("选择配音")).toBeVisible();
+    await expect(page.getByRole("heading", { name: /选择配音/ })).toBeVisible();
     const firstVoiceCard = page.locator(".xx-voice-choice-item").first();
     await firstVoiceCard.click();
     await page.getByRole("button", { name: "下一步" }).click();
 
     // Step 5: confirm and generate
-    await expect(page.getByText("确认生成")).toBeVisible();
+    await expect(page.getByRole("heading", { name: /确认生成/ })).toBeVisible();
 
     const createTaskPromise = page.waitForResponse(
       (response) =>
@@ -211,7 +211,7 @@ test.describe("Core generation flow", () => {
       .poll(
         async () => {
           const resp = await request.get(
-            `${apiBase}/generation-tasks/${taskData.id}`,
+            `${apiBase}/generation/tasks/${taskData.id}`,
             { headers },
           );
           if (!resp.ok()) return `http_${resp.status()}`;
@@ -250,7 +250,7 @@ test.describe("Core generation flow", () => {
     expect(project.status()).toBe(200);
     const projectData = (await project.json()) as ProjectResponse;
 
-    const tasks = await request.get(`${apiBase}/generation-tasks`, {
+    const tasks = await request.get(`${apiBase}/generation/tasks`, {
       headers,
       params: { project_id: projectData.id },
     });