e2e: enable clazz-ui FullCalendar test, fix department-single-transparent

- Un-skip clazz-ui FullCalendar test by adding login + role selection
- Use subjectPayload.current_department_id (JWT sub claim) for dept
  assertion instead of top-level payload
- Add explicit auth token waits and /clazz navigation for reliability
- Remove unnecessary timeouts and debug logging

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/clazz-ui.spec.ts

@@ -1,5 +1,8 @@
 import { expect, test } from './fixtures';
 
+const moicenUnionid = (process.env.MOICEN_E2E_UNIONID || 'o66lo5iK98xBI9pX-0RBqveqDryI').trim();
+const ROLE_TEACHER = 2;
+
 test.describe('排课页面 UI', () => {
   test('排课日历页应正常加载（无JS崩溃）', async ({ page }) => {
     await page.goto('/clazz', { waitUntil: 'domcontentloaded', timeout: 60_000 });
@@ -22,9 +25,35 @@ test.describe('排课页面 UI', () => {
     expect(errors.filter(e => !e.includes('ResizeObserver') && !e.includes('not implemented'))).toEqual([]);
   });
 
-  test.fixme('排课日历 FullCalendar 应初始化（需已登录）', async ({ page }) => {
-    // FullCalendar 在已登录状态下应渲染
+  test('排课日历 FullCalendar 应初始化（需已登录）', async ({ page }) => {
+    test.setTimeout(120_000);
+
+    // 登录
+    const q = new URLSearchParams({ unionid: moicenUnionid, status: '2' });
+    await page.goto(`/?${q.toString()}`, { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(3000);
+
+    // 选择身份（如果弹出）
+    const rs = page.getByText('请选择您的登录身份');
+    if (await rs.isVisible().catch(() => false)) {
+      const items = page.locator('.van-grid-item');
+      const count = await items.count();
+      // items[0]=测试员, items[1]=学生, items[2]=教师
+      if (count >= 3) {
+        await items.nth(ROLE_TEACHER).click();
+      } else {
+        await items.first().click();
+      }
+      await page.waitForTimeout(3000);
+    }
+
+    // 导航到排课页面
     await page.goto('/clazz', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(5000);
+
+    // FullCalendar 应渲染
     await expect(page.locator('.fc')).toBeVisible({ timeout: 30_000 });
     await expect(page.locator('.fc-timegrid')).toBeVisible({ timeout: 30_000 });
     await expect(page.locator('.fc-toolbar')).toBeVisible({ timeout: 15_000 });