Improve Telegram forum onboarding and topic safety

adapter/telegram/keyboards/forum.py

@@ -0,0 +1,22 @@
+from __future__ import annotations
+
+from aiogram.types import KeyboardButton, KeyboardButtonRequestChat, ReplyKeyboardMarkup
+
+
+def forum_group_request_keyboard() -> ReplyKeyboardMarkup:
+    return ReplyKeyboardMarkup(
+        keyboard=[[
+            KeyboardButton(
+                text="Выбрать forum-группу",
+                request_chat=KeyboardButtonRequestChat(
+                    request_id=1,
+                    chat_is_channel=False,
+                    chat_is_forum=True,
+                    bot_is_member=True,
+                    request_title=True,
+                ),
+            )
+        ]],
+        resize_keyboard=True,
+        one_time_keyboard=True,
+    )