fix(release): enforce AIHR tenant collation contract

backend/script/sql/aihr_org_snapshot_mysql8.sql

@@ -6,7 +6,7 @@
 DROP TABLE IF EXISTS `aihr_org_snapshot`;
 CREATE TABLE `aihr_org_snapshot` (
   `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主键',
-  `tenant_id` varchar(20) DEFAULT '000000' COMMENT '租户编号',
+  `tenant_id` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT '000000' COMMENT '租户编号',
   `project_code` varchar(50) NOT NULL COMMENT '项目编码（数据权限范围主体，D1）',
   `project_name` varchar(100) NOT NULL COMMENT '项目名称',
   `dept_name` varchar(100) DEFAULT NULL COMMENT '部门/条线',