payemnt billing and credits refactoring

backend/igny8_core/auth/migrations/0035_account_bonus_credits.py

@@ -0,0 +1,34 @@
+# Generated by Django 5.2.10 on 2026-01-20 06:11
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('igny8_core_auth', '0034_add_user_phone'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='account',
+            name='bonus_credits',
+            field=models.IntegerField(default=0, help_text='Purchased/bonus credits (never expire, never reset)', validators=[django.core.validators.MinValueValidator(0)]),
+        ),
+        migrations.AddField(
+            model_name='historicalaccount',
+            name='bonus_credits',
+            field=models.IntegerField(default=0, help_text='Purchased/bonus credits (never expire, never reset)', validators=[django.core.validators.MinValueValidator(0)]),
+        ),
+        migrations.AlterField(
+            model_name='account',
+            name='credits',
+            field=models.IntegerField(default=0, help_text='Plan credits (reset on renewal)', validators=[django.core.validators.MinValueValidator(0)]),
+        ),
+        migrations.AlterField(
+            model_name='historicalaccount',
+            name='credits',
+            field=models.IntegerField(default=0, help_text='Plan credits (reset on renewal)', validators=[django.core.validators.MinValueValidator(0)]),
+        ),
+    ]