stacklok / toolhive-studio / 25811225268 / 1

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main: 71%

Pull #2246

github

feat(playground): queue messages while a response is streaming

When the user submits a message while the assistant is still streaming
a response, the renderer holds it as a per-thread queued message
(single slot, in-memory) and auto-fires it when the current stream
completes. A small chip above the composer surfaces the queued state
with a cancel button. The submit button morphs into a send-style icon
when the composer has text during streaming, distinguishing the queue
action from the existing stop behavior.

Mutually exclusive with the rewind-and-retry path from #2241 — when
editing the last user message during streaming, that flow still wins.
The queue is cleared on thread switch and on cancel.

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