fix: resolve MongoDB-specific E2E test failures and $sequence type bug

- Fix $sequence always cast to string (was incorrectly cast to int for numeric values) in Document.php and Row.php
- Add supportForMultipleFulltextIndexes, supportForAttributeResizing, supportForSchemas console variables for MongoDB adapter
- Fix testCreateIndexes to use getSupportForMultipleFulltextIndexes() instead of getSupportForRelationships() for fulltext index error branching
- Fix testAttributeRowWidthLimit/testColumnRowWidthLimit to skip on databases without schema support (MongoDB)
- Fix testAttributeUpdateStringResize/testColumnUpdateStringResize to skip on databases without attribute resizing support (MongoDB)

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

src/Appwrite/Platform/Modules/Console/Http/Variables/Get.php

@@ -97,6 +97,9 @@ class Get extends Action
             'supportForSpatials' => $adapter->getSupportForSpatialAttributes(),
             'supportForSpatialIndexNull' => $adapter->getSupportForSpatialIndexNull(),
             'supportForFulltextWildcard' => $adapter->getSupportForFulltextWildcardIndex(),
+            'supportForMultipleFulltextIndexes' => $adapter->getSupportForMultipleFulltextIndexes(),
+            'supportForAttributeResizing' => $adapter->getSupportForAttributeResizing(),
+            'supportForSchemas' => $adapter->getSupportForSchemas(),
             'maxIndexLength' => $adapter->getMaxIndexLength(),
         ]);
 

src/Appwrite/Utopia/Response/Model/ConsoleVariables.php

@@ -160,6 +160,33 @@ class ConsoleVariables extends Model
                     'example' => true,
                 ]
             )
+            ->addRule(
+                'supportForMultipleFulltextIndexes',
+                [
+                    'type' => self::TYPE_BOOLEAN,
+                    'description' => 'Whether the database adapter supports multiple fulltext indexes per collection.',
+                    'default' => true,
+                    'example' => true,
+                ]
+            )
+            ->addRule(
+                'supportForAttributeResizing',
+                [
+                    'type' => self::TYPE_BOOLEAN,
+                    'description' => 'Whether the database adapter supports resizing attributes.',
+                    'default' => true,
+                    'example' => true,
+                ]
+            )
+            ->addRule(
+                'supportForSchemas',
+                [
+                    'type' => self::TYPE_BOOLEAN,
+                    'description' => 'Whether the database adapter supports fixed schemas with row width limits.',
+                    'default' => true,
+                    'example' => true,
+                ]
+            )
             ->addRule(
                 'maxIndexLength',
                 [

src/Appwrite/Utopia/Response/Model/Document.php

@@ -85,7 +85,7 @@ class Document extends Any
 
         if (!$document->isEmpty()) {
             $sequence = $document->getAttribute('$sequence', '');
-            $document->setAttribute('$sequence', \is_numeric($sequence) ? (int)$sequence : (string)$sequence);
+            $document->setAttribute('$sequence', (string)$sequence);
         }
 
         foreach ($document->getAttributes() as $attribute) {

src/Appwrite/Utopia/Response/Model/Row.php

@@ -83,7 +83,7 @@ class Row extends Any
         $document->removeAttribute('$collection');
         $document->removeAttribute('$tenant');
         $sequence = $document->getAttribute('$sequence', '');
-        $document->setAttribute('$sequence', \is_numeric($sequence) ? (int)$sequence : (string)$sequence);
+        $document->setAttribute('$sequence', (string)$sequence);
 
         foreach ($document->getAttributes() as $column) {
             if (\is_array($column)) {