new bot structure

app/bot/dialogs/widgets/getters.py

@@ -0,0 +1,8 @@
+from aiogram.types import User
+from aiogram_dialog import DialogManager
+
+
+async def username_getter(
+    dialog_manager: DialogManager, event_from_user: User, **kwargs
+) -> dict[str, str]:
+    return {"username": event_from_user.username}