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

basic_info/models.py

@@ -376,6 +376,30 @@ class Employee(ModelBase):
         verbose_name_plural = '员工资料'
 
 
+class UserProfile(ModelBase):
+    id = models.BigAutoField(primary_key=True)
+    user = models.OneToOneField(
+        User,
+        on_delete=models.CASCADE,
+        related_name='profile',
+        verbose_name='关联用户',
+    )
+    merchant = models.ForeignKey(
+        'Merchant',
+        on_delete=models.PROTECT,
+        related_name='user_profiles',
+        verbose_name='所属商户',
+    )
+    description = models.TextField(blank=True, null=True, verbose_name='备注描述')
+
+    def __str__(self):
+        return f"{self.user.username}'s Profile"
+
+    class Meta:
+        verbose_name = '用户资料扩展'
+        verbose_name_plural = '用户资料扩展'
+
+
 class DeviceInfo(ModelBase):
     id = models.BigAutoField(primary_key=True)
     merchant = models.ForeignKey('Merchant', on_delete=models.PROTECT, related_name='devices', verbose_name='所属商户')