refactor: unify Telegram delivery and add quality checks

tests/test_telegram_utils.py

@@ -12,6 +12,7 @@ from assistant_bot.telegram_utils import (
     escape_markdown_text,
     render_markdown_chunks,
     reply_markdown,
+    send_markdown,
     typing_action,
 )
 
@@ -55,6 +56,21 @@ class MarkdownRenderingTests(unittest.TestCase):
 
 
 class MarkdownDeliveryTests(unittest.IsolatedAsyncioTestCase):
+    async def test_send_markdown_uses_the_shared_formatted_delivery(self) -> None:
+        sent_message = SimpleNamespace()
+        bot = SimpleNamespace(
+            send_message=AsyncMock(return_value=sent_message)
+        )
+
+        result = await send_markdown(bot, 42, "**Готово.**")
+
+        self.assertIs(result, sent_message)
+        bot.send_message.assert_awaited_once_with(
+            chat_id=42,
+            text="*Готово\\.*",
+            parse_mode=ParseMode.MARKDOWN_V2,
+        )
+
     async def test_retries_plain_text_with_notice_when_telegram_rejects_markup(
         self,
     ) -> None: