fix customer view and edit

apps/customers/models.py

@@ -52,3 +52,19 @@ class CustomerProfile(PersianTextNormalizationMixin, TimeStampedModel):
     province = models.CharField(max_length=100, blank=True)
     city = models.CharField(max_length=100, blank=True)
     def __str__(self): return (f"{self.first_name} {self.last_name}".strip() or self.user.mobile or self.user.username)
+
+
+class ContactEditLog(models.Model):
+    """Persistent record of changes made through the staff contact editor."""
+
+    contact = models.ForeignKey(CustomerProfile, on_delete=models.SET_NULL, null=True, related_name="edit_logs")
+    contact_public_id = models.UUIDField(db_index=True)
+    actor = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.SET_NULL, null=True, related_name="contact_edits")
+    actor_name = models.CharField(max_length=150)
+    changes = models.JSONField()
+    created_at = models.DateTimeField(auto_now_add=True, db_index=True)
+
+    class Meta:
+        ordering = ["-created_at", "-pk"]
+        verbose_name = "سابقه ویرایش مخاطب"
+        verbose_name_plural = "سوابق ویرایش مخاطبان"