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
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2026-01-24 19:33:28 +08:00
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-- 修改知识点表将material_id设为必填字段
-- 执行日期2025-09-27
-- 说明将knowledge_points表的material_id字段从可选改为必填
-- 1. 首先检查是否有material_id为NULL的记录
SELECT COUNT(*) as null_count FROM knowledge_points WHERE material_id IS NULL AND is_deleted = FALSE;
-- 2. 如果有NULL值需要先处理这些记录可以删除或设置默认值
-- 这里先删除material_id为NULL的记录如果有的话
DELETE FROM knowledge_points WHERE material_id IS NULL;
-- 3. 修改字段为NOT NULL并修改外键约束
ALTER TABLE knowledge_points
MODIFY COLUMN material_id INT NOT NULL COMMENT '关联资料ID';
-- 4. 删除旧的外键约束
ALTER TABLE knowledge_points
DROP FOREIGN KEY knowledge_points_ibfk_2;
-- 5. 添加新的外键约束CASCADE删除
ALTER TABLE knowledge_points
ADD CONSTRAINT knowledge_points_ibfk_2
FOREIGN KEY (material_id) REFERENCES course_materials(id) ON DELETE CASCADE;
-- 6. 验证修改结果
DESCRIBE knowledge_points;