fix(menu): 修复菜单管理编辑无法保存与新增 500 - 根因一：MenuService create/update 以 snake_case 列名作 Sequelize 写入键而实体属性为 camelCase，导致写入被静默忽略（更新假成功）或 NOT NULL 报错（新增 500），改为 camelCase 属性名；根因二：sys_menu 列默认值指向历史遗留重复序列 sys_menu_id_seq1 且未推进，新增菜单 id 冲突，生产库已一次性 setval 同步（max(id)=64，并核对 sys_role/sys_user 序列），db_seed.sql 全部 setval 改为 pg_get_serial_sequence() 形式兼容不同环境序列名；接口与浏览器端到端验证通过（新增→改名→持久化→清理）

Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com

server/src/service/menu.service.ts

@@ -43,13 +43,13 @@ export class MenuService {
 		}
 
 		const menu = await this.menuModel.create({
-			parent_id: parentId,
-			menu_name: menuName,
-			menu_path: menuPath,
+			parentId,
+			menuName,
+			menuPath,
 			component,
 			icon,
-			sort_order: sortOrder,
-			menu_type: menuType,
+			sortOrder,
+			menuType,
 			permission,
 			visible,
 		});
@@ -73,13 +73,13 @@ export class MenuService {
 		}
 
 		const updateData: any = {};
-		if (data.parentId !== undefined) updateData.parent_id = data.parentId;
-		if (data.menuName !== undefined) updateData.menu_name = data.menuName;
-		if (data.menuPath !== undefined) updateData.menu_path = data.menuPath;
+		if (data.parentId !== undefined) updateData.parentId = data.parentId;
+		if (data.menuName !== undefined) updateData.menuName = data.menuName;
+		if (data.menuPath !== undefined) updateData.menuPath = data.menuPath;
 		if (data.component !== undefined) updateData.component = data.component;
 		if (data.icon !== undefined) updateData.icon = data.icon;
-		if (data.sortOrder !== undefined) updateData.sort_order = data.sortOrder;
-		if (data.menuType !== undefined) updateData.menu_type = data.menuType;
+		if (data.sortOrder !== undefined) updateData.sortOrder = data.sortOrder;
+		if (data.menuType !== undefined) updateData.menuType = data.menuType;
 		if (data.permission !== undefined) updateData.permission = data.permission;
 		if (data.visible !== undefined) updateData.visible = data.visible;