feat: 新增甲方客户管理模块及配套功能

1. 新增甲方客户CRUD接口、前端页面与权限控制
2. 新增发货单管理模块，包含订单状态流转
3. 修复系统菜单名称乱码问题
4. 新增项目启动脚本与数据库初始化脚本
5. 新增相关实体类、Mapper、Service实现
6. 补充项目设计文档与忽略配置

sql/fix_menu_garbled_complete.sql

@@ -0,0 +1,74 @@
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ============================================
+-- 菜单名称乱码修复脚本
+-- 根据权限字符(perms)和菜单类型还原正确的菜单名称
+-- ============================================
+
+-- 1. 订单管理模块
+UPDATE sys_menu SET menu_name = '订单管理' WHERE perms = 'bid:order:list';
+UPDATE sys_menu SET menu_name = '待发订单' WHERE perms = 'bid:order:pending';
+UPDATE sys_menu SET menu_name = '在途订单' WHERE perms = 'bid:order:transit';
+UPDATE sys_menu SET menu_name = '历史订单' WHERE perms = 'bid:order:history';
+UPDATE sys_menu SET menu_name = '结单时间' WHERE perms = 'bid:order:closeDate';
+
+-- 2. 甲方客户管理
+UPDATE sys_menu SET menu_name = '甲方客户' WHERE perms = 'bid:client:list';
+
+-- 3. 操作记录
+UPDATE sys_menu SET menu_name = '操作记录' WHERE perms = 'bid:operationlog:list';
+UPDATE sys_menu SET menu_name = '查询' WHERE perms = 'bid:operationlog:query' AND menu_type = 'F';
+
+-- 4. 甲方报价（如果有乱码）
+UPDATE sys_menu SET menu_name = '甲方报价' WHERE perms = 'bid:clientquote:list';
+UPDATE sys_menu SET menu_name = '新增' WHERE perms = 'bid:clientquote:add' AND menu_type = 'F';
+UPDATE sys_menu SET menu_name = '编辑' WHERE perms = 'bid:clientquote:edit' AND menu_type = 'F';
+UPDATE sys_menu SET menu_name = '删除' WHERE perms = 'bid:clientquote:remove' AND menu_type = 'F';
+UPDATE sys_menu SET menu_name = '导出' WHERE perms = 'bid:clientquote:export' AND menu_type = 'F';
+
+-- 5. 报价请求（RFQ）
+UPDATE sys_menu SET menu_name = '报价请求' WHERE perms = 'bid:rfq:list';
+
+-- 6. 供应商管理
+UPDATE sys_menu SET menu_name = '供应商管理' WHERE perms = 'bid:supplier:list';
+
+-- 7. 物料管理
+UPDATE sys_menu SET menu_name = '物料管理' WHERE perms = 'bid:material:list';
+
+-- 8. 智慧比价
+UPDATE sys_menu SET menu_name = '智慧比价' WHERE perms = 'bid:comparison:list';
+
+-- 9. 统计分析
+UPDATE sys_menu SET menu_name = '统计分析' WHERE perms = 'bid:report:list';
+
+-- 10. 采购单
+UPDATE sys_menu SET menu_name = '采购单' WHERE perms = 'bid:purchaseorder:list';
+
+-- 11. 供应商评价
+UPDATE sys_menu SET menu_name = '供应商评价' WHERE perms = 'bid:evaluation:list';
+
+-- 12. 交易记录
+UPDATE sys_menu SET menu_name = '交易记录' WHERE perms = 'bid:transaction:list';
+
+-- ============================================
+-- 验证修复结果
+-- ============================================
+
+SELECT 
+    menu_id,
+    menu_name,
+    perms,
+    menu_type,
+    CASE menu_type
+        WHEN 'M' THEN '目录'
+        WHEN 'C' THEN '菜单'
+        WHEN 'F' THEN '按钮'
+    END AS type_name,
+    order_num,
+    status
+FROM sys_menu 
+WHERE perms LIKE 'bid:%'
+ORDER BY menu_id;
+
+SET FOREIGN_KEY_CHECKS = 1;