libtmux:refresh-client

Request a redraw of captured terminal TARGET; return a COMMAND-OUTCOME. STATUS-ONLY requests only the status line; NIL requests the whole display. Success acknowledges scheduling, not completed terminal rendering. This is an external operation; REFRESH instead acquires a replacement observation. CLIENT must own TARGET. Blocks under shared preflight/dispatch limits. A stale or foreign target signals STALE-TARGET; other failures retain their outcome. The client fingerprint is checked before dispatch, with a remaining replacement race. Returns no replacement and never retries the request.