refactor: unify Telegram delivery and add quality checks

assistant_bot/handlers.py

@@ -22,7 +22,6 @@ from .telegram_utils import (
     get_tz,
     get_voice_max_duration,
     markdown_code,
-    reply_long,
     reply_markdown,
     require_user_id,
 )
@@ -118,7 +117,7 @@ async def history_command(update: Update, context: ContextTypes.DEFAULT_TYPE) ->
         f"{str(row['content']) if row['role'] == 'assistant' else escape_markdown_text(row['content'])}"
         for row in rows
     )
-    await reply_long(update.message, text)
+    await reply_markdown(update.message, text)
 
 
 async def ask_command(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: