feat: sync bot api formatted text parse modes

Sync telesrv 00630bc (feat(botapi): support formatted text parse modes).

Skipped telesrv docs changes per public sync rules.

cmd/bots/bedolagaformat/test_demo.py

@@ -0,0 +1,52 @@
+import importlib.util
+from pathlib import Path
+import sys
+import unittest
+from unittest.mock import AsyncMock
+
+from aiogram.enums import ParseMode
+
+
+MODULE_PATH = Path(__file__).with_name("demo.py")
+SPEC = importlib.util.spec_from_file_location("bedolagaformat_demo", MODULE_PATH)
+assert SPEC is not None and SPEC.loader is not None
+demo = importlib.util.module_from_spec(SPEC)
+sys.modules[SPEC.name] = demo
+SPEC.loader.exec_module(demo)
+
+
+class SentMessage:
+    def __init__(self, message_id: int) -> None:
+        self.message_id = message_id
+
+
+class BedolagaFormatDemoTest(unittest.IsolatedAsyncioTestCase):
+    def test_format_samples_cover_default_and_explicit_modes(self) -> None:
+        samples = demo.format_samples("BEDOLAGA123")
+        self.assertEqual(
+            [sample.parse_mode for sample in samples],
+            [None, ParseMode.MARKDOWN, ParseMode.MARKDOWN_V2],
+        )
+        self.assertIn("<b>BEDOLAGA123 Default HTML</b>", samples[0].text)
+        self.assertIn("*BEDOLAGA123 Markdown*", samples[1].text)
+        self.assertIn("*BEDOLAGA123 MarkdownV2*", samples[2].text)
+
+    def test_markdown_v2_escapes_reserved_marker_characters(self) -> None:
+        samples = demo.format_samples("BEDOLAGA-FULL-20260720")
+        self.assertIn(r"BEDOLAGA\-FULL\-20260720", samples[2].text)
+
+    async def test_send_suite_omits_parse_mode_only_for_default_html(self) -> None:
+        bot = AsyncMock()
+        bot.send_message.side_effect = [SentMessage(11), SentMessage(12), SentMessage(13)]
+
+        message_ids = await demo.send_format_suite(bot, 1780243200, "BEDOLAGA123")
+
+        self.assertEqual(message_ids, [11, 12, 13])
+        calls = bot.send_message.await_args_list
+        self.assertNotIn("parse_mode", calls[0].kwargs)
+        self.assertEqual(calls[1].kwargs["parse_mode"], ParseMode.MARKDOWN)
+        self.assertEqual(calls[2].kwargs["parse_mode"], ParseMode.MARKDOWN_V2)
+
+
+if __name__ == "__main__":
+    unittest.main()