2つ目のgmailアカウントを処理

backend/apps/mail/migrations/0004_rename_infoseek_to_gmail_service.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0 on 2026-02-23 07:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mail', '0003_add_infoseek_account'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='mailemail',
+            name='account',
+            field=models.CharField(choices=[('xserver', 'Xserver'), ('gmail', 'Gmail'), ('hotmail', 'Hotmail'), ('gmail_service', 'Gmail (サービス用)')], max_length=20, verbose_name='アカウント'),
+        ),
+    ]