fix(archiving): compare share node type as string in data migration

tables_shares stores node_type as a string ('table'), so filtering with
the integer NODE_TYPE_TABLE constant never matched the direct user
shares (or, on MySQL loose casting, matched every node type). Recipient
archive records were therefore not migrated correctly.

Assisted-by: ClaudeCode:claude-fable-5
Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

Author: AndyScherzinger

lib/Migration/Version2400Date20260904000000.php

@@ -13,6 +13,7 @@
 
 use Closure;
 use OCA\Tables\AppInfo\Application;
+use OCA\Tables\Helper\ConversionHelper;
 use OCP\DB\Exception;
 use OCP\DB\ISchemaWrapper;
 use OCP\DB\QueryBuilder\IQueryBuilder;
@@ -132,7 +133,7 @@ public function postSchemaChange(IOutput $output, Closure $schemaClosure, array
 		$shareQb->select('receiver')
 			->from('tables_shares')
 			->where($shareQb->expr()->eq('node_id', $shareQb->createParameter('nodeId')))
-			->andWhere($shareQb->expr()->eq('node_type', $shareQb->createNamedParameter(Application::NODE_TYPE_TABLE, IQueryBuilder::PARAM_INT)))
+			->andWhere($shareQb->expr()->eq('node_type', $shareQb->createNamedParameter(ConversionHelper::constNodeType2String(Application::NODE_TYPE_TABLE))))
 			->andWhere($shareQb->expr()->eq('receiver_type', $shareQb->createNamedParameter('user')));
 
 		$checkQb = $this->connection->getQueryBuilder();