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/examples/coze_integration_example.py

@@ -0,0 +1,140 @@
+"""
+Coze 集成示例
+演示如何使用 Coze 服务
+"""
+
+import asyncio
+import os
+from datetime import datetime
+
+# 设置环境变量（实际使用时应通过 .env 文件或环境配置）
+os.environ.update({
+    "COZE_API_BASE": "https://api.coze.cn",
+    "COZE_WORKSPACE_ID": "your_workspace_id",
+    "COZE_API_TOKEN": "your_api_token",
+    "COZE_CHAT_BOT_ID": "7489905095250526219",
+    "COZE_TRAINING_BOT_ID": "7494965200370581538",
+    "COZE_EXAM_BOT_ID": "7492288561950195724"
+})
+
+from app.services.ai.coze import (
+    get_coze_service,
+    CreateSessionRequest,
+    SendMessageRequest,
+    EndSessionRequest,
+    SessionType
+)
+
+
+async def demo_course_chat():
+    """演示课程对话功能"""
+    print("\n=== 课程对话示例 ===")
+    
+    service = get_coze_service()
+    
+    # 1. 创建会话
+    create_request = CreateSessionRequest(
+        session_type=SessionType.COURSE_CHAT,
+        user_id="demo-user-123",
+        course_id="python-basics-101",
+        metadata={"course_name": "Python 基础教程"}
+    )
+    
+    session_response = await service.create_session(create_request)
+    print(f"创建会话成功: {session_response.session_id}")
+    
+    # 2. 发送消息
+    message_request = SendMessageRequest(
+        session_id=session_response.session_id,
+        content="请解释一下 Python 的装饰器是什么？",
+        stream=True
+    )
+    
+    print("\n助手回复:")
+    async for event in service.send_message(message_request):
+        if event.event.value == "message_delta":
+            print(event.content, end="", flush=True)
+        elif event.event.value == "message_completed":
+            print(f"\n\n[消息完成] Token 使用: {event.data.get('usage', {})}")
+    
+    # 3. 获取历史消息
+    messages = await service.get_session_messages(session_response.session_id)
+    print(f"\n会话消息数: {len(messages)}")
+
+
+async def demo_training_session():
+    """演示陪练会话功能"""
+    print("\n\n=== 陪练会话示例 ===")
+    
+    service = get_coze_service()
+    
+    # 1. 创建陪练会话
+    create_request = CreateSessionRequest(
+        session_type=SessionType.TRAINING,
+        user_id="demo-user-456",
+        training_topic="客诉处理技巧",
+        metadata={"difficulty": "intermediate"}
+    )
+    
+    session_response = await service.create_session(create_request)
+    print(f"创建陪练会话成功: {session_response.session_id}")
+    
+    # 2. 进行多轮对话
+    scenarios = [
+        "客户抱怨产品质量有问题，要求退款",
+        "我会先向客户道歉，然后了解具体问题",
+        "客户说产品使用一周就坏了，非常生气"
+    ]
+    
+    for i, content in enumerate(scenarios):
+        print(f"\n--- 第 {i+1} 轮对话 ---")
+        print(f"用户: {content}")
+        
+        message_request = SendMessageRequest(
+            session_id=session_response.session_id,
+            content=content,
+            stream=False  # 非流式响应
+        )
+        
+        print("助手: ", end="")
+        async for event in service.send_message(message_request):
+            if event.event.value == "message_completed":
+                print(event.content)
+        
+        # 模拟思考时间
+        await asyncio.sleep(1)
+    
+    # 3. 结束会话
+    end_request = EndSessionRequest(
+        reason="练习完成",
+        feedback={
+            "rating": 5,
+            "helpful": True,
+            "comment": "模拟场景很真实，学到了很多处理技巧"
+        }
+    )
+    
+    end_response = await service.end_session(session_response.session_id, end_request)
+    print(f"\n会话结束:")
+    print(f"- 时长: {end_response.duration_seconds} 秒")
+    print(f"- 消息数: {end_response.message_count}")
+
+
+async def main():
+    """运行所有示例"""
+    try:
+        # 运行课程对话示例
+        await demo_course_chat()
+        
+        # 运行陪练会话示例
+        await demo_training_session()
+        
+    except Exception as e:
+        print(f"\n错误: {e}")
+        import traceback
+        traceback.print_exc()
+
+
+if __name__ == "__main__":
+    # 运行示例
+    asyncio.run(main())