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/diag3_lesson.py

@@ -0,0 +1,91 @@
+"""直接测试页面并获取错误详情"""
+import re
+import json
+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}")
+
+    # 访问备课列表页并捕获错误响应体
+    print("\n>>> 访问 /teacher/lesson-plans 并捕获错误...")
+
+    # 监听页面错误
+    page_errors = []
+    def on_pageerror(err):
+        page_errors.append(str(err))
+        print(f"  [PAGE_ERROR] {err}")
+
+    page.on("pageerror", on_pageerror)
+
+    # 监听控制台
+    console_msgs = []
+    def on_console(msg):
+        console_msgs.append(f"[{msg.type}] {msg.text}")
+        if msg.type in ("error", "warning"):
+            print(f"  [CONSOLE_{msg.type.upper()}] {msg.text}")
+
+    page.on("console", on_console)
+
+    try:
+        response = page.goto(f"{BASE_URL}/teacher/lesson-plans", timeout=30000)
+        print(f"HTTP 状态: {response.status if response else 'None'}")
+
+        # 获取响应体
+        if response and response.status >= 400:
+            body = response.text()
+            print(f"\n响应体前 2000 字符:")
+            print(body[:2000])
+        else:
+            # 等待页面加载
+            try:
+                page.wait_for_load_state("domcontentloaded", timeout=10000)
+            except:
+                pass
+            page.wait_for_timeout(2000)
+
+            # 检查页面内容
+            body_text = page.locator("body").text_content() or ""
+            print(f"\n页面内容长度: {len(body_text)}")
+
+            # 检查是否有 Next.js 错误页面
+            if "Application error" in body_text or "Internal Server Error" in body_text:
+                print("\n⚠️ 检测到应用错误")
+                # 获取完整的 HTML
+                html = page.content()
+                # 找到错误信息
+                error_matches = re.findall(r'(?:Application error|Internal Server Error|Error:)[^<]{0,1000}', html)
+                for match in error_matches[:5]:
+                    print(f"错误: {match}")
+
+            page.screenshot(path="webtest/screenshots/lesson-preparation/diag3_list.png", full_page=True)
+
+    except Exception as e:
+        print(f"❌ 访问失败: {e}")
+
+    print("\n>>> 页面错误:")
+    for err in page_errors:
+        print(f"  {err}")
+
+    print("\n>>> 控制台错误/警告:")
+    for msg in console_msgs:
+        if msg.startswith("[error]") or msg.startswith("[warning]"):
+            print(f"  {msg}")
+
+    browser.close()