将文件夹命名从拼音改为英文，整理了一些代码，将导入语句迁移到了头部

orders/migrations/0018_dingdanshangjia_partner_yonghu_id.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.27 on 2026-04-30 02:36
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dingdan', '0017_dingdanpingtai_dianpu_id_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='dingdanshangjia',
+            name='partner_yonghu_id',
+            field=models.CharField(blank=True, max_length=32, null=True, verbose_name='对方平台用户ID'),
+        ),
+    ]