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/app/schemas/system_log.py

@@ -0,0 +1,59 @@
+"""
+系统日志 Schema
+"""
+from datetime import datetime
+from typing import Optional
+from pydantic import BaseModel, Field
+
+
+class SystemLogBase(BaseModel):
+    """系统日志基础Schema"""
+    level: str = Field(..., description="日志级别: debug, info, warning, error")
+    type: str = Field(..., description="日志类型: system, user, api, error, security")
+    user: Optional[str] = Field(None, description="操作用户")
+    user_id: Optional[int] = Field(None, description="用户ID")
+    ip: Optional[str] = Field(None, description="IP地址")
+    message: str = Field(..., description="日志消息")
+    user_agent: Optional[str] = Field(None, description="User Agent")
+    path: Optional[str] = Field(None, description="请求路径")
+    method: Optional[str] = Field(None, description="请求方法")
+    extra_data: Optional[str] = Field(None, description="额外数据（JSON格式）")
+
+
+class SystemLogCreate(SystemLogBase):
+    """创建系统日志Schema"""
+    pass
+
+
+class SystemLogResponse(SystemLogBase):
+    """系统日志响应Schema"""
+    id: int
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class SystemLogQuery(BaseModel):
+    """系统日志查询参数"""
+    level: Optional[str] = Field(None, description="日志级别筛选")
+    type: Optional[str] = Field(None, description="日志类型筛选")
+    user: Optional[str] = Field(None, description="用户筛选")
+    keyword: Optional[str] = Field(None, description="关键词搜索（搜索message字段）")
+    start_date: Optional[datetime] = Field(None, description="开始日期")
+    end_date: Optional[datetime] = Field(None, description="结束日期")
+    page: int = Field(1, ge=1, description="页码")
+    page_size: int = Field(20, ge=1, le=100, description="每页数量")
+
+
+class SystemLogListResponse(BaseModel):
+    """系统日志列表响应"""
+    items: list[SystemLogResponse]
+    total: int
+    page: int
+    page_size: int
+    total_pages: int
+
+
+