telegram-markdown-rendering-tables-headers-double-bold

Telegram Markdown rendering:

Telegram Markdown rendering: tables/headers/double-bold break. Telegram Markdown mode only supports bold, italic, code, code blocks. Does NOT support double bold, headers, | tables |, --- rules, links. Defense-in-depth: (1) System prompt must explicitly forbid unsupported constructs, (2) Formatter converts as safety net — tables→bullet lists, →, →bold*, * list→bullet, strip --- and .