fix: make phase 5 permission validation mysql compatible

deploy/sql/头程数据库统一增量-MySQL8.sql

@@ -16633,6 +16633,9 @@ DROP PROCEDURE IF EXISTS assert_phase5_delivery_permissions;
 DELIMITER $$
 CREATE PROCEDURE assert_phase5_delivery_permissions()
 BEGIN
+  DECLARE v_warehouse_operator_permission_count INT DEFAULT 0;
+  DECLARE v_warehouse_tally_permission_count INT DEFAULT 0;
+
   IF (SELECT COUNT(*) FROM iam_permission
        WHERE tenant_id=0 AND status='ACTIVE' AND deleted=0
          AND permission_code IN (
@@ -16661,8 +16664,12 @@ BEGIN
            'platform:overseas-warehouse:delivery:list')) <> 7 THEN
     SIGNAL SQLSTATE '45000' SET MESSAGE_TEXT='五期海外派送权限初始化失败：平台管理员授权不完整';
   END IF;
-  IF (SELECT COUNT(*) FROM tmp_phase5_delivery_role_permission WHERE role_code='WAREHOUSE_OPERATOR') <> 7
-     OR (SELECT COUNT(*) FROM tmp_phase5_delivery_role_permission WHERE role_code='WAREHOUSE_TALLY') <> 2 THEN
+  SELECT COALESCE(SUM(role_code='WAREHOUSE_OPERATOR'),0),
+         COALESCE(SUM(role_code='WAREHOUSE_TALLY'),0)
+    INTO v_warehouse_operator_permission_count, v_warehouse_tally_permission_count
+    FROM tmp_phase5_delivery_role_permission;
+  IF v_warehouse_operator_permission_count <> 7
+     OR v_warehouse_tally_permission_count <> 2 THEN
     SIGNAL SQLSTATE '45000' SET MESSAGE_TEXT='五期海外派送权限初始化失败：仓库岗位最小权限矩阵异常';
   END IF;
   IF EXISTS (SELECT 1 FROM iam_role_permission grant_row