fix(db_world): add creature_summon_groups.Comment before 2023_08_13_00

Column was added in old/8.x SQL but not in the archive chain; idempotent
ALTER matches 2023_01_31_01 so INSERT using Comment succeeds on archive-only
installs.

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

data/sql/archive/db_world/2023_08_13_00.sql

@@ -1,5 +1,21 @@
 -- DB update 2023_08_12_02 -> 2023_08_13_00
 --
+SET @csg_comment_exists := (
+  SELECT COUNT(*)
+  FROM INFORMATION_SCHEMA.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'creature_summon_groups'
+    AND COLUMN_NAME = 'Comment'
+);
+SET @sql := IF(
+  @csg_comment_exists > 0,
+  'SELECT 1',
+  'ALTER TABLE `creature_summon_groups` ADD COLUMN `Comment` varchar(255) NOT NULL DEFAULT '''' AFTER `summonTime`'
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
 DELETE FROM `event_scripts` WHERE `id` = 14376;
 
 UPDATE `gameobject_template` SET `AIName` = 'SmartGameObjectAI' WHERE `entry` = 185220;