add logging to mailing error

app/bot/dialogs/flows/mailing/handlers.py

@@ -4,9 +4,11 @@ from aiogram.types import CallbackQuery, Message
 from aiogram_dialog import DialogManager
 from aiogram_dialog.widgets.input import MessageInput
 from aiogram_dialog.widgets.kbd import Button
+from structlog import get_logger
 
 from app.infrastructure.database.crud import get_users
 
+logger = get_logger()
 
 async def message_data(
     message: Message,
@@ -56,7 +58,13 @@ async def confirm_mailing(
                 message_id=source_message_id,
             )
             success_count += 1
-        except Exception:
+        except Exception as e:
+            logger.warning(
+                "не удалось отправить сообщение",
+                user_id=user.tg_id,
+                error=str(e),
+                exc_info=True,  # добавит traceback
+            )
             pass