fix: use adapter idAttributeType for all VAR_ID attributes

Both $tenant and $sequence should validate using the adapter's
idAttributeType since tenant can be set to a sequence value. The
Sequence validator's UUID7→integer fall-through handles integer
values in any adapter.

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

Author: abnegate

src/Database/Validator/Structure.php

@@ -340,8 +340,7 @@ protected function checkForInvalidAttributeValues(array $structure, array $keys)
 
             switch ($type) {
                 case Database::VAR_ID:
-                    $idType = ($attribute['$id'] === '$sequence') ? Database::VAR_INTEGER : $this->idAttributeType;
-                    $validators[] = new Sequence($idType, $attribute['$id'] === '$sequence');
+                    $validators[] = new Sequence($this->idAttributeType, $attribute['$id'] === '$sequence');
                     break;
 
                 case Database::VAR_VARCHAR: