One clean status message while the assistant works

The plain-language status shown while the assistant works ("Thinking…", "Looking for the best products for you…" and the like) now behaves the way it should on an agent's public link and in the dashboard playground shopper view.

Two glitches are fixed:

• When the assistant did several things at once (for example searching the catalog and comparing products in parallel), a shopper could see two or more status messages stacked on top of each other. Now a single message covers the whole step.
• Between steps the chat could briefly show no status at all, so the assistant looked frozen even though it was still working. Now a status message stays on screen the entire time the assistant is working, right up until the reply text starts appearing.

The result: exactly one status message, never two, never blank, until the answer shows up. This is a display-only fix: what the assistant actually does, and the results it returns (carousels, comparisons, detail cards, clarifying questions), are unchanged.