Loads @twemoji/api (jsDelivr) and renders emojis as Twemoji images in messages, the emoji
picker, and reactions (twemojify at each render point). Picker inserts via data-emoji so it
survives the <img> swap. Falls back to plain Unicode if the CDN is unavailable. build batch25.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>