test: update and add E2E, integration, visual, and webapp tests

- Update E2E tests: announcements, auth, auth-business-flow, full-route-regression, grades, navigation, smoke-auth, teacher-web-test

- Update integration tests: api-ai-chat, api-onboarding-complete, api-onboarding-status, proxy-guard, integration setup

- Update visual regression tests: admin-dashboard, homepage, student-dashboard, teacher-dashboard, visual config, helpers

- Update webapp tests: admin, parent, student full tests and debug scripts

- Add new webapp tests: announcements_messages, settings_profile, debug scripts

- Add webtest directory with test plans, screenshots, and diagnostic scripts

webtest/test_routes.py

@@ -0,0 +1,56 @@
+"""测试其他教师页面"""
+import re
+from playwright.sync_api import sync_playwright
+
+BASE_URL = "http://localhost:3000"
+
+with sync_playwright() as p:
+    browser = p.chromium.launch(headless=True)
+    context = browser.new_context()
+    page = context.new_page()
+
+    # 登录教师账号
+    print(">>> 登录教师账号...")
+    page.goto(f"{BASE_URL}/login", timeout=30000)
+    page.wait_for_load_state("networkidle", timeout=15000)
+
+    page.locator('input[name="email"]').fill("t_chinese_1@xiaoxue.edu.cn")
+    page.locator('input[name="password"]').fill("123456")
+    page.get_by_role("button", name=re.compile(r"Sign In with Email", re.I)).click()
+
+    page.wait_for_load_state("networkidle", timeout=20000)
+    page.wait_for_timeout(2000)
+    print(f"登录后 URL: {page.url}")
+
+    # 测试多个教师页面
+    routes = [
+        "/teacher/dashboard",
+        "/teacher/lesson-plans",
+        "/teacher/lesson-plans/new",
+        "/teacher/homework",
+        "/teacher/exams",
+        "/teacher/textbooks",
+    ]
+
+    for route in routes:
+        print(f"\n>>> 测试 {route}...")
+        try:
+            response = page.goto(f"{BASE_URL}{route}", timeout=30000)
+            status = response.status if response else "None"
+            final_url = page.url
+            print(f"  HTTP {status} -> {final_url}")
+
+            if status >= 400:
+                # 获取错误信息
+                try:
+                    body = response.text()
+                    # 找到错误信息
+                    error_match = re.search(r'data-next-error-message="([^"]+)"', body)
+                    if error_match:
+                        print(f"  错误: {error_match.group(1)[:300]}")
+                except:
+                    pass
+        except Exception as e:
+            print(f"  ❌ 异常: {e}")
+
+    browser.close()