fix: users prefs default value

app/config/collections.php

@@ -1001,7 +1001,7 @@ $collections = [
                 'size' => 16384,
                 'signed' => true,
                 'required' => false,
-                'default' => [],
+                'default' => new \stdClass(),
                 'array' => false,
                 'filters' => ['json'],
             ],

app/controllers/api/account.php

@@ -102,7 +102,7 @@ App::post('/v1/account')
                 'registration' => \time(),
                 'reset' => false,
                 'name' => $name,
-                'prefs' => [],
+                'prefs' => new \stdClass(),
                 'sessions' => [],
                 'tokens' => [],
                 'memberships' => [],
@@ -500,7 +500,7 @@ App::get('/v1/account/sessions/oauth2/:provider/redirect')
                         'registration' => \time(),
                         'reset' => false,
                         'name' => $name,
-                        'prefs' => [],
+                        'prefs' => new \stdClass(),
                         'sessions' => [],
                         'tokens' => [],
                         'memberships' => [],
@@ -672,7 +672,7 @@ App::post('/v1/account/sessions/magic-url')
                 'passwordUpdate' => \time(),
                 'registration' => \time(),
                 'reset' => false,
-                'prefs' => [],
+                'prefs' => new \stdClass(),
                 'sessions' => [],
                 'tokens' => [],
                 'memberships' => [],
@@ -944,7 +944,7 @@ App::post('/v1/account/sessions/anonymous')
             'registration' => \time(),
             'reset' => false,
             'name' => null,
-            'prefs' => [],
+            'prefs' => new \stdClass(),
             'sessions' => [],
             'tokens' => [],
             'memberships' => [],

app/controllers/api/teams.php

@@ -333,7 +333,7 @@ App::post('/v1/teams/:teamId/memberships')
                     'registration' => \time(),
                     'reset' => false,
                     'name' => $name,
-                    'prefs' => [],
+                    'prefs' => new \stdClass(),
                     'sessions' => [],
                     'tokens' => [],
                     'memberships' => [],

app/controllers/api/users.php

@@ -62,7 +62,7 @@ App::post('/v1/users')
                 'registration' => \time(),
                 'reset' => false,
                 'name' => $name,
-                'prefs' => [],
+                'prefs' => new \stdClass(),
                 'sessions' => [],
                 'tokens' => [],
                 'memberships' => [],

src/Appwrite/Migration/Version/V11.php

@@ -514,7 +514,7 @@ class V11 extends Migration
                  * Set default values for arrays if not set.
                  */
                 if (empty($document->getAttribute('prefs', []))) {
-                    $document->setAttribute('prefs', []);
+                    $document->setAttribute('prefs', new \stdClass());
                 }
                 if (empty($document->getAttribute('sessions', []))) {
                     $document->setAttribute('sessions', []);