chore: 整理项目结构，清理归档文件，更新部署配置

temp_assign_roles.sql

@@ -0,0 +1,20 @@
+-- 为用户分配角色
+-- 首先查询角色ID
+SELECT id, name, display_name FROM roles;
+
+-- 插入角色分配记录 (employee_id: sxn)
+INSERT INTO user_roles (id, employee_id, role_id, source, assigned_at)
+SELECT 'ur-sxn-agent', 'sxn', id, 'manual', NOW()
+FROM roles WHERE name = 'agent'
+ON CONFLICT DO NOTHING;
+
+INSERT INTO user_roles (id, employee_id, role_id, source, assigned_at)
+SELECT 'ur-sxn-admin', 'sxn', id, 'manual', NOW()
+FROM roles WHERE name = 'admin'
+ON CONFLICT DO NOTHING;
+
+-- 验证
+SELECT ur.employee_id, r.name as role_name, r.display_name
+FROM user_roles ur
+JOIN roles r ON ur.role_id = r.id
+WHERE ur.employee_id = 'sxn';