sol-loop: async review round has no deadline, so the parent waits forever if Sol never ends its turn #8

skills/sol-loop (seen at 7de017b, unchanged on 92e38e2) starts each round with delegate_task mode: "async", then says "Wait for the notice. Do not poll." The notice only comes when the child's run ends, and nothing sets a deadline, so "Timeout, error, or no reply is not approval" can never trigger. When a Sol child keeps compacting after it has printed its verdict (reported to T3 Code separately), the parent waits forever: we saw 9 to 10 hours, five times in one night.

Suggested fix, using tools T3 already has:

1. Start each round with delegate_task mode: "wait", timeoutMs 10 min.
2. On each timeout, t3_thread_read the child. Once a VERDICT: line appears, task_cancel the child (a timed-out wait leaves it running) and use the verdict, because the child's turn may never end. Otherwise t3_thread_wait 10 more minutes and check again.
3. After 30 minutes with no verdict, cancel, run one fresh round, then stop and report. Never treat a miss as approval.
4. Add to the brief: "Read only the diff and the files it touches. Reply as soon as you have a verdict, then stop."