Bug

When sending a message with media (image/video/audio) via the message tool, the caption text is sent without parse_mode, so markdown formatting is not rendered.

Expected

Caption should support markdown formatting like regular text messages.

Actual

Caption is sent as plain text. Asterisks show literally instead of bold.

Location

dist/telegram/send.js - mediaParams object is missing:

• parse_mode: 'HTML'
• Caption should be converted via markdownToTelegramHtml(caption)

Comparison

Text-only messages correctly use:

const textParams = {
    parse_mode: 'HTML',
    ...
};
const htmlText = markdownToTelegramHtml(text);

But media messages use:

const mediaParams = {
    caption,  // raw text, no conversion
    // no parse_mode
};

Fix

Add parse_mode: 'HTML' to mediaParams and convert caption with markdownToTelegramHtml().