Live chat, leveled up: saved replies, routing, files, CSAT and AI drafts

A big upgrade to the chat inbox and widget. Agents get saved replies with /shortcuts right in the composer, an AI "draft reply" button that writes the next message from the conversation so far, and one-click file and image sharing - visitors can send files too, inline in the thread. New conversations can auto-assign round-robin to the least-busy online agent, and set your office hours so the widget shows you as away and sends a friendly auto-reply out of hours. Both sides now see typing indicators, agent profile photos appear on replies, and after a chat is closed the visitor can leave a star rating that shows up on the conversation. Agents also get a desktop notification and a sound the moment a visitor messages in.