fix: Set default language (#2205)

Author: shaohuzhang1

apps/users/migrations/0005_user_language.py

@@ -1,11 +1,9 @@
 # Generated by Django 4.2.15 on 2025-01-20 06:59
 
 from django.db import migrations, models
-import users.models.user
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
         ('users', '0004_alter_user_email'),
     ]
@@ -14,6 +12,6 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='user',
             name='language',
-            field=models.CharField(default=users.models.user.get_language, max_length=10, verbose_name='语言'),
+            field=models.CharField(default=None, null=True, max_length=10, verbose_name='语言'),
         ),
     ]