feat(telegram): block-level markdown to html, wikilinks, tables, quotes, fence-safe chunking

src/beaver_gateway/frontends/telegram/drafts.py

@@ -21,7 +21,7 @@ from typing import TYPE_CHECKING
 
 from aiogram.exceptions import TelegramAPIError, TelegramBadRequest
 
-from beaver_gateway.frontends.telegram.render import to_html
+from beaver_gateway.frontends.telegram.render import to_html, to_html_tail
 
 if TYPE_CHECKING:
     from aiogram import Bot
@@ -112,12 +112,12 @@ class Draft:
     async def _push(self) -> None:
         self._dirty = False
         self._last_sent = time.monotonic()
-        text = self._render()
+        rendered, plain = self._render()
         try:
             try:
-                await self._send(to_html(text), "HTML")
+                await self._send(rendered, "HTML")
             except TelegramBadRequest:
-                await self._send(text, None)
+                await self._send(plain, None)
         except TelegramAPIError as exc:
             self._broken = True
             _log.warning(
@@ -133,6 +133,9 @@ class Draft:
             parse_mode=parse_mode,
         )
 
-    def _render(self) -> str:
+    def _render(self) -> tuple[str, str]:
         tail = self.text[-_TAIL:]
-        return f"{self.status}\n\n{tail}" if tail.strip() else self.status
+        if not tail.strip():
+            return to_html(self.status), self.status
+        rendered = f"{to_html(self.status)}\n\n{to_html_tail(self.text, _TAIL)}"
+        return rendered, f"{self.status}\n\n{tail}"