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/check_db.py

@@ -0,0 +1,59 @@
+"""检查数据库连接和账号状态"""
+import os
+
+def check_db():
+    try:
+        import mysql.connector
+        conn = mysql.connector.connect(
+            host="mysql.eazygame.cn",
+            port=14013,
+            user="root",
+            password="wx1998WX",
+            database="next_edu"
+        )
+        cursor = conn.cursor()
+
+        # 检查用户表
+        cursor.execute("SELECT id, email, name FROM users WHERE email LIKE '%@xiaoxue.edu.cn' LIMIT 20")
+        users = cursor.fetchall()
+        print("=== 用户列表 ===")
+        for u in users:
+            print(f"  ID: {u[0]}, Email: {u[1]}, Name: {u[2]}")
+
+        # 检查用户角色关联
+        cursor.execute("""
+            SELECT u.email, r.name as role_name
+            FROM users u
+            JOIN users_to_roles utr ON u.id = utr.user_id
+            JOIN roles r ON utr.role_id = r.id
+            WHERE u.email LIKE '%@xiaoxue.edu.cn'
+            LIMIT 30
+        """)
+        roles = cursor.fetchall()
+        print("\n=== 用户角色 ===")
+        for r in roles:
+            print(f"  {r[0]} -> {r[1]}")
+
+        # 检查课案表
+        cursor.execute("SELECT COUNT(*) FROM lesson_plans")
+        count = cursor.fetchone()[0]
+        print(f"\n=== 课案数量: {count} ===")
+
+        # 检查课案模板表
+        cursor.execute("SELECT COUNT(*) FROM lesson_plan_templates")
+        tpl_count = cursor.fetchone()[0]
+        print(f"=== 课案模板数量: {tpl_count} ===")
+
+        # 检查 onboarding 状态
+        cursor.execute("SELECT email, onboarded FROM users WHERE email IN ('admin@xiaoxue.edu.cn', 't_chinese_1@xiaoxue.edu.cn', 'student_g1c1_1@xiaoxue.edu.cn', 'parent_g1c1_1@xiaoxue.edu.cn')")
+        onboarded = cursor.fetchall()
+        print("\n=== Onboarding 状态 ===")
+        for o in onboarded:
+            print(f"  {o[0]}: onboarded={o[1]}")
+
+        cursor.close()
+        conn.close()
+    except Exception as e:
+        print(f"❌ 数据库错误: {e}")
+
+check_db()