feat: added user profile model & api & admin, it uses by found user with merchant

stock/migrations/0004_alter_stockchangerecord_source_type.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.7 on 2025-11-24 03:07
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stock', '0003_remove_inventory_minimum_quantity'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='stockchangerecord',
+            name='source_type',
+            field=models.IntegerField(choices=[(1, '采购'), (2, '销退'), (3, '调入'), (4, '盘盈'), (5, '合并'), (6, '销售'), (7, '采购退货'), (8, '调出'), (9, '盘亏'), (10, '拆卷')], verbose_name='变动来源'),
+        ),
+    ]