fixed some warnings in backend

backend/api/migrations/0019_alter_flavor_options.py

@@ -0,0 +1,17 @@
+# Generated by Django 6.0.2 on 2026-02-18 03:42
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0018_alter_category_options'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='flavor',
+            options={'ordering': ['name']},
+        ),
+    ]