fix: 假单打乱顺序持久化到OrderSequence，2分钟内全用户一致

Co-authored-by: Cursor <cursoragent@cursor.com>

orders/migrations/0013_fakegrabordershufflestate_ordersequence.py

@@ -0,0 +1,21 @@
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('orders', '0012_fakegrabordershufflestate'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='fakegrabordershufflestate',
+            name='OrderSequence',
+            field=models.JSONField(
+                blank=True,
+                default=dict,
+                help_text='形如 {"xq|1": {"last_shuffle_time": "...", "order_ids": ["JD...", ...]}}',
+                verbose_name='各俱乐部+类型已打乱顺序',
+            ),
+        ),
+    ]