Two issues fixed:
- Use 'paused' instead of 'available' to stop typing. Baileys'
sendPresenceUpdate('available') sends a global <presence> stanza and
ignores the JID, so chatstate never left 'composing' and WhatsApp
suppressed duplicate composing notifications per XEP-0085.
- Add setTyping call when piping messages to an already-running
container. Previously only the first message (which spawns a new
container) triggered the typing indicator.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>