fix: Set application default language

Author: shaohuzhang1

apps/application/migrations/0024_applicationaccesstoken_language.py

@@ -1,11 +1,9 @@
 # Generated by Django 4.2.15 on 2025-01-20 06:59
 
-import application.models.api_key_model
 from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
         ('application', '0023_application_stt_autosend'),
     ]
@@ -14,6 +12,6 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='applicationaccesstoken',
             name='language',
-            field=models.CharField(default=application.models.api_key_model.get_language, max_length=10, verbose_name='语言'),
+            field=models.CharField(default=None, max_length=10, null=True, verbose_name='语言')
         ),
     ]