Client.wait_for_text

Subscribe, capture the ordinary screen immediately, and recapture after output. Membership/overflow gaps trigger explicit fresh capture and new coverage in the same binding. Maximum pattern: 64 KiB. Success returns a capture that contains the text. Transient text between captures may be missed. Check the deadline between bounded acquisitions; in-flight I/O retains the client's exchange timeout. Release the temporary subscription without replacing an earlier error or cancellation; inspect cleanup for secondary failures. Otherwise cleanup failure prevents success or renewed coverage. No capture/stream barrier exists.