feat: associate generation calls with devices

apps/billing/migrations/0010_callrecord_client_device_and_more.py

@@ -0,0 +1,27 @@
+# Generated by Django 5.2.15 on 2026-07-21 01:34
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('billing', '0009_signup_bonus_default_ten'),
+        ('licensing', '0001_initial'),
+        ('users', '0005_alter_apikey_created_at_alter_apikey_key_hash_and_more'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='callrecord',
+            name='client_device',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='call_records', to='licensing.clientdevice', verbose_name='客户端设备'),
+        ),
+        migrations.AddIndex(
+            model_name='callrecord',
+            index=models.Index(fields=['client_device', 'created_at'], name='call_record_client__d5a0fb_idx'),
+        ),
+    ]