<fix>[conf]: ZSTAC-81566 upgrade clusterId to BIGINT

V5.3.22 added clusterId as INT but Java expects Long
(BIGINT). ADD_COLUMN skips existing columns, causing
Hibernate schema validation failure.

Resolves: ZSTAC-81566
http://jira.zstack.io/browse/ZSTAC-81566
Change-Id: Ic0606d6f2354f75b2ef76580ce334b5a88cbabe6

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: AlanJager

conf/db/upgrade/V5.5.6__schema.sql

@@ -192,8 +192,28 @@ WHERE p.type NOT IN (
 );
 
 -- ZSTAC-81566: Persist clusterId on ModelServiceInstanceVO to survive node restart
+-- V5.3.22 may have already added this column as INT; ensure BIGINT to match Java Long type
 CALL ADD_COLUMN('ModelServiceInstanceVO', 'clusterId', 'BIGINT', 1, NULL);
 
+DROP PROCEDURE IF EXISTS EnsureClusterIdBigint;
+DELIMITER $$
+CREATE PROCEDURE EnsureClusterIdBigint()
+BEGIN
+    DECLARE col_type VARCHAR(64);
+    SELECT DATA_TYPE INTO col_type
+    FROM INFORMATION_SCHEMA.COLUMNS
+    WHERE TABLE_SCHEMA = 'zstack'
+      AND TABLE_NAME = 'ModelServiceInstanceVO'
+      AND COLUMN_NAME = 'clusterId';
+
+    IF col_type = 'int' THEN
+        ALTER TABLE `zstack`.`ModelServiceInstanceVO` MODIFY COLUMN `clusterId` BIGINT NULL;
+    END IF;
+END$$
+DELIMITER ;
+CALL EnsureClusterIdBigint();
+DROP PROCEDURE IF EXISTS EnsureClusterIdBigint;
+
 -- Backfill existing data from PodVO
 UPDATE ModelServiceInstanceVO msi
 INNER JOIN PodVO p ON msi.vmInstanceUuid = p.uuid