🐛 修复收款流水继续认领与付款可付口径，并改用OA登录名提交流程

收款流水部分认领预填关联结算单并修正认领完成判定；正式结算尾款扣减预付占用；预付驳回重提纠正结算引用；临时额度取消强制项目额度校验；用户增加OA登录名供MK流程使用。

Co-authored-by: Cursor <cursoragent@cursor.com>

doc/sql/transport/blade_user_oa_login_id_20261019.sql

@@ -0,0 +1,18 @@
+-- 用户表：新增 OA 登录名，支持用户管理后台维护
+-- 排序规则 utf8mb4_general_ci
+
+ALTER TABLE `blade_user`
+  ADD COLUMN `oa_login_id` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT 'OA登录名' AFTER `is_oa`;
+
+-- 从用户部门关联表回填已有 OA 登录账号
+UPDATE `blade_user` bu
+INNER JOIN (
+  SELECT `user_id`, MAX(`oa_login_id`) AS `oa_login_id`
+  FROM `blade_user_dept`
+  WHERE `is_deleted` = 0
+    AND `oa_login_id` IS NOT NULL
+    AND `oa_login_id` <> ''
+  GROUP BY `user_id`
+) bud ON bud.`user_id` = bu.`id`
+SET bu.`oa_login_id` = bud.`oa_login_id`
+WHERE bu.`oa_login_id` IS NULL OR bu.`oa_login_id` = '';