feat: 初始化考培练系统项目

- 从服务器拉取完整代码
- 按框架规范整理项目结构
- 配置 Drone CI 测试环境部署
- 包含后端(FastAPI)、前端(Vue3)、管理端

技术栈: Vue3 + TypeScript + FastAPI + MySQL

backend/test_user_id4.py

@@ -0,0 +1,124 @@
+#!/usr/bin/env python
+"""
+检查用户ID 4的统计数据
+"""
+
+import asyncio
+import sys
+from pathlib import Path
+import aiomysql
+import os
+
+# 添加项目根目录到 Python 路径
+project_root = Path(__file__).parent
+sys.path.append(str(project_root))
+
+from app.core.config import settings
+
+async def check_user_4():
+    """检查用户ID 4的数据"""
+    try:
+        # 从环境变量或配置中获取数据库连接信息
+        database_url = os.getenv("DATABASE_URL", settings.DATABASE_URL)
+        
+        # 解析数据库连接字符串
+        if database_url.startswith("mysql+aiomysql://"):
+            url = database_url.replace("mysql+aiomysql://", "")
+        else:
+            url = database_url
+            
+        # 解析连接参数
+        auth_host = url.split("@")[1]
+        user_pass = url.split("@")[0]
+        host_port_db = auth_host.split("/")
+        host_port = host_port_db[0].split(":")
+        
+        user = user_pass.split(":")[0]
+        password = user_pass.split(":")[1]
+        host = host_port[0]
+        port = int(host_port[1]) if len(host_port) > 1 else 3306
+        database = host_port_db[1].split("?")[0] if len(host_port_db) > 1 else "kaopeilian"
+        
+        print(f"连接数据库: {host}:{port}/{database}")
+        
+        # 创建数据库连接
+        conn = await aiomysql.connect(
+            host=host,
+            port=port,
+            user=user,
+            password=password,
+            db=database,
+            charset='utf8mb4'
+        )
+        
+        async with conn.cursor() as cursor:
+            # 1. 查看用户信息
+            print("\n=== 用户信息 ===")
+            await cursor.execute("""
+                SELECT id, username, email, full_name, role, is_active
+                FROM users
+                WHERE id = 4
+            """)
+            user_info = await cursor.fetchone()
+            if user_info:
+                print(f"ID: {user_info[0]}, 用户名: {user_info[1]}, 邮箱: {user_info[2]}, 姓名: {user_info[3]}, 角色: {user_info[4]}, 激活: {user_info[5]}")
+            else:
+                print("用户ID 4不存在")
+                
+            # 如果没有ID=4的用户，查看所有用户
+            print("\n=== 所有用户 ===")
+            await cursor.execute("""
+                SELECT id, username, email, role
+                FROM users
+                ORDER BY id
+            """)
+            users = await cursor.fetchall()
+            for user in users:
+                print(f"ID: {user[0]}, 用户名: {user[1]}, 邮箱: {user[2]}, 角色: {user[3]}")
+                
+            # 2. 查看用户ID 4的统计数据（如果存在）
+            if user_info:
+                user_id = 4
+                print(f"\n=== 用户ID {user_id} 统计数据 ===")
+                
+                # 学习天数
+                await cursor.execute("""
+                    SELECT COUNT(DISTINCT DATE(start_time))
+                    FROM training_sessions
+                    WHERE user_id = %s
+                """, (user_id,))
+                learning_days = (await cursor.fetchone())[0] or 0
+                print(f"学习天数: {learning_days}")
+                
+                # 总时长
+                await cursor.execute("""
+                    SELECT COALESCE(SUM(duration_seconds), 0)
+                    FROM training_sessions
+                    WHERE user_id = %s
+                """, (user_id,))
+                total_seconds = (await cursor.fetchone())[0] or 0
+                total_hours = round(float(total_seconds) / 3600.0, 1) if total_seconds else 0.0
+                print(f"学习时长: {total_hours} 小时")
+                
+                # 练习题数和平均分
+                await cursor.execute("""
+                    SELECT COALESCE(SUM(question_count), 0), AVG(score)
+                    FROM exams
+                    WHERE user_id = %s AND status = 'completed'
+                """, (user_id,))
+                result = await cursor.fetchone()
+                practice_questions = result[0] or 0
+                avg_score = round(float(result[1]), 1) if result[1] is not None else 0.0
+                print(f"练习题数: {practice_questions}")
+                print(f"平均分: {avg_score}")
+                
+        conn.close()
+        
+    except Exception as e:
+        print(f"执行失败: {e}")
+        import traceback
+        traceback.print_exc()
+
+if __name__ == "__main__":
+    print("检查用户ID 4的数据...")
+    asyncio.run(check_user_4())