The one-shot from the session quick actions now also runs once when a
draft session becomes real, summarizing the opening message instead of
leaving the "Session N" placeholder.
Failures stay silent on this path: the user did not ask for a title, so
a busy runtime must not raise an error banner. A rename made while the
request is queued wins over its result.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Rename, AI retitle, pin and archive, reached from the "..." button on
every session row and in the chat header. Sessions carry one lifecycle
state (normal, pinned, archived) rather than independent flags, so the
sidebar groups them without an unrepresentable pinned-and-archived case.
The AI retitle runs as a one-shot against the transient KV cache through
a new CheckpointTarget::OneShot, leaving no session or checkpoint behind
while still reporting as local work in the metrics.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
