fix: 修复auth/me查询SQL，移除不必要的MAX聚合

software/api-server/src/middleware/auth.rs

@@ -186,7 +186,7 @@ pub async fn load_user_permissions(pool: &MySqlPool, user_id: i64) -> Result<Has
 /// 加载用户最高角色等级和组织ID
 async fn load_user_role_and_org(pool: &MySqlPool, user_id: i64) -> Result<(i32, Option<i64>), sqlx::Error> {
     let result: Option<(i32, Option<i64>)> = sqlx::query_as(
-        "SELECT COALESCE(MAX(role), 0), organization_id FROM users WHERE id = ?",
+        "SELECT role, organization_id FROM users WHERE id = ?",
     )
     .bind(user_id)
     .fetch_optional(pool)