- Attach button with file preview (image thumb for images, name+size for others)
- Audio recording via MediaRecorder API with live timer; sends as voice note
- Emoji panel with 35 common emojis (medical/comms focused)
- Reaction picker on message hover — sends via chat_react.php API
- Template modal (name, lang, JSON params) — sends via chat_send_message.php type=template
- buildBubble() now renders: inline images, <video> player, <audio> player, doc links with type icon
- Shows reaction_emoji below bubble and status tick on outgoing messages
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
