feat: 俱乐部订单单向互通抢单（集团配置 + 接单池/抢单校验）

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

jituan/migrations/0016_club_order_grab_link.py

@@ -0,0 +1,35 @@
+# Generated manually for ClubOrderGrabLink
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('jituan', '0015_club_recharge_page_copy'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ClubOrderGrabLink',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('grabber_club_id', models.CharField(db_index=True, max_length=16, verbose_name='抢单方俱乐部')),
+                ('order_club_id', models.CharField(db_index=True, max_length=16, verbose_name='被抢订单所属俱乐部')),
+                ('CreateTime', models.DateTimeField(auto_now_add=True)),
+            ],
+            options={
+                'verbose_name': '俱乐部订单互通抢单',
+                'db_table': 'club_order_grab_link',
+                'unique_together': {('grabber_club_id', 'order_club_id')},
+            },
+        ),
+        migrations.AddIndex(
+            model_name='clubordergrablink',
+            index=models.Index(fields=['grabber_club_id'], name='idx_cogl_grabber'),
+        ),
+        migrations.AddIndex(
+            model_name='clubordergrablink',
+            index=models.Index(fields=['order_club_id'], name='idx_cogl_order'),
+        ),
+    ]