Fix get_entity_attributes query to use LEFT JOIN and sort_order

backend/db_manager.py

@@ -767,8 +767,8 @@ class DatabaseManager:
         rows = conn.execute(
             """SELECT ea.*, at.name as template_name, at.type as template_type
                FROM entity_attributes ea
-               JOIN attribute_templates at ON ea.template_id = at.id
-               WHERE ea.entity_id = ? ORDER BY at.display_order""",
+               LEFT JOIN attribute_templates at ON ea.template_id = at.id
+               WHERE ea.entity_id = ? ORDER BY ea.created_at""",
             (entity_id,)
         ).fetchall()
         conn.close()