change user_name still used as login and add display_name for dashboard view instead of username on login

backend/apps/jobs/management/commands/bootstrap_admin.py

@@ -7,7 +7,7 @@ from apps.accounts.models import ApiKey, User
 
 def ensure_bootstrap_user(
     *,
-    user_login: str,
+    user_name: str,
     password: str,
     status: str,
     is_superuser: bool,
@@ -15,9 +15,9 @@ def ensure_bootstrap_user(
     stdout,
 ) -> User:
     user, created = User.objects.get_or_create(
-        user_login=user_login,
+        user_name=user_name,
         defaults={
-            "user_name": user_login,
+            "display_name": user_name,
             "status": status,
             "is_superuser": is_superuser,
         },
@@ -25,7 +25,7 @@ def ensure_bootstrap_user(
 
     if not created and user.status != status:
         stdout.write(
-            f"Updating {user_login!r} status {user.status!r} → {status!r}"
+            f"Updating {user_name!r} status {user.status!r} → {status!r}"
         )
 
     should_set_password = created or not user.has_usable_password() or force_password
@@ -35,12 +35,12 @@ def ensure_bootstrap_user(
         user.is_superuser = is_superuser
         user.save()
         action = "Created" if created else "Updated password for"
-        stdout.write(f"{action} {status} user {user_login}")
+        stdout.write(f"{action} {status} user {user_name}")
     else:
         user.status = status
         user.is_superuser = is_superuser
         user.save(update_fields=["status", "is_superuser", "updated_at"])
-        stdout.write(f"User {user_login} already exists (password unchanged)")
+        stdout.write(f"User {user_name} already exists (password unchanged)")
 
     return user
 
@@ -71,7 +71,7 @@ class Command(BaseCommand):
             )
 
         admin = ensure_bootstrap_user(
-            user_login=admin_user_name,
+            user_name=admin_user_name,
             password=admin_password,
             status=User.STATUS_SUPERUSER,
             is_superuser=True,
@@ -91,7 +91,7 @@ class Command(BaseCommand):
                     "BOOTSTRAP_STAFF_PASSWORD is required when BOOTSTRAP_STAFF_USER is set."
                 )
             ensure_bootstrap_user(
-                user_login=staff_user_name,
+                user_name=staff_user_name,
                 password=staff_password,
                 status=User.STATUS_GM,
                 is_superuser=False,