[davidmckayv]

What this changes

A turn whose run has gone quiet now ends when the runtime says the conversation has no run going, or can't say. Before, it waited for good.

Found in testing, with the service that carries a conversation's events stalled mid-run:

• The Bot's reply stopped half written and its step said "Running", with Stop up, for as long as anybody watched (200 seconds).
• The server had given the run up after a minute. Nothing could tell the browser, because a run's events reach it by that same service, and a run that ends without its last event looks exactly like one that is thinking.

The check (app/src/lib/copilot/quiet-run.ts, used in channel-chat.tsx):

• After 45 seconds with nothing arriving from a run, the runtime is asked whether the conversation still has a run going, by the call a conversation is joined with. It answers the live run's id when there is one.
• While it says yes, the turn keeps waiting and it is asked again every 45 seconds. A Bot that is thinking or waiting on an app is never cut off.
• When it says no, the turn ends with "The Bot stopped before it finished. What it saved is shown here. Send a message to carry on." and what the conversation holds is read back.
• When it can't answer within 15 seconds, the turn ends with "OpenBot lost touch with the Bot before it finished. Try again in a moment, or reload to see what was saved."
• Between a turn's runs, while the browser takes a step or the person answers a card, nothing is asked.
• An answer about a run that spoke while the question was out is not taken.

Evidence

Tests (app/tests/quiet-run.test.ts): what each answer from the runtime means, including one that never comes; a quiet run kept while the runtime says it is going and ended when it says it is not; a run that keeps speaking never asked about; nothing asked between a turn's runs; a late answer not taken.

Real product, with the service frozen six seconds into a run:

	Before	After
Chromium	"Running" and Stop for 200 seconds, nothing said	Turn ended at 65 seconds with the sentence; Stop gone
WebKit	same	Turn ended at 64 seconds
Next message after recovery	answered	answered; the half-written reply is kept above it

Ordinary turns are unchanged: a short answer, and a turn that stops for an approval and carries on, both finished as before.