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/diag2_lesson.py

@@ -0,0 +1,87 @@
+"""详细诊断 500 错误"""
+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()
+
+    # 收集所有响应
+    responses = []
+
+    def on_response(response):
+        url = response.url
+        status = response.status
+        if "/teacher/lesson-plans" in url or "/api/" in url:
+            responses.append({"url": url, "status": status})
+            print(f"  [RESPONSE] {status} {url}")
+
+    page.on("response", on_response)
+
+    # 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(3000)
+    print(f"登录后 URL: {page.url}")
+
+    if "/login" in page.url:
+        print("❌ 登录失败，尝试获取错误信息...")
+        # 检查页面上的错误提示
+        error_text = page.locator("body").text_content()
+        print(f"页面内容: {error_text[:500] if error_text else 'empty'}")
+    else:
+        print("✅ 登录成功")
+
+        # 访问备课列表页
+        print("\n>>> 访问 /teacher/lesson-plans...")
+        try:
+            response = page.goto(f"{BASE_URL}/teacher/lesson-plans", timeout=60000)
+            print(f"HTTP 状态: {response.status if response else 'None'}")
+            print(f"最终 URL: {page.url}")
+
+            # 等待更长时间
+            try:
+                page.wait_for_load_state("networkidle", timeout=30000)
+            except:
+                print("  networkidle 超时，继续检查...")
+
+            page.wait_for_timeout(3000)
+
+            # 获取页面内容
+            body_text = page.locator("body").text_content() or ""
+            print(f"\n页面内容长度: {len(body_text)}")
+            if len(body_text) < 500:
+                print(f"页面内容: {body_text}")
+            else:
+                print(f"页面内容前 500 字符: {body_text[:500]}")
+
+            # 检查是否有错误页面
+            if "500" in body_text or "Error" in body_text or "错误" in body_text:
+                print("\n⚠️ 检测到错误页面")
+                # 获取完整的 HTML
+                html = page.content()
+                # 找到错误信息
+                error_match = re.search(r'(Error|错误|error)[^<]{0,500}', html)
+                if error_match:
+                    print(f"错误信息: {error_match.group(0)}")
+
+            page.screenshot(path="webtest/screenshots/lesson-preparation/diag2_list.png", full_page=True)
+
+        except Exception as e:
+            print(f"❌ 访问失败: {e}")
+
+    print("\n>>> 所有响应:")
+    for r in responses:
+        print(f"  {r['status']} {r['url']}")
+
+    browser.close()