A new sidebar, and a chat that shows its work

A new sidebar and All chats page, a cleaner chat with notification cards, and an AI teammate that tells you what it is doing as it works.
Getting around is simpler. The sidebar keeps your main places fixed at the top and your chats and rooms below, and the chat itself has a calmer layout that keeps you informed while your AI teammate works.
Improvements
- The new sidebar keeps Home, Marketplace, Workspace, and All chats at the top, with Pinned, Private chats, and Rooms below.
- Rooms open in place to their latest chats. Reorder them by dragging, and pin a whole room.
- Hover over a chat to see its last message.
- All chats on desktop lets you search every chat, filter to what needs you or what is pinned, and group by date or room.
- Chat has a cleaner, grouped layout on desktop and phone. Files from a conversation open as tabs in the side panel.
- Notifications arrive as cards at the top of the app. Act on a mention, an approval, or finished work right from the card, and the stack tucks back into the bell when you move on.
- Search has a new look: recent items when it opens, grouped results with your match highlighted, and keyboard hints.
- Your AI teammate says what it is about to do within seconds of starting, instead of working in silence.
- Long jobs like video renders keep running in the background. A live chip shows what is running, for how long, and when it should finish.
- A command that needs more time keeps going in the background instead of being cut off, and your AI teammate checks in every hour on very long jobs.
- The Team page is on for every workspace, with one People list and each teammate’s profile.
Fixes
- Chat pages fit the screen again, and sending a message takes you straight to it.
- Moving between rooms and private chats no longer flashes a blank page.
- The chat keeps your place when the side panel opens, and opens at the latest message.
- Stop also cancels any work that was queued to continue afterwards.
- “Delivered N files” counts only the files that actually arrived, and a file that could not be delivered says so first.
- One request makes one new version of a file, not several in a row.