The check composite returned ActionResult with no output on success, so the
dashboard's 'Check All' (and the CLI) showed nothing when checks passed — only
a failing sub-verb ever produced output. It now accumulates each sub-verb's
output with a ✓/✗ marker (lint / type-check / test), on both success and
failure, so the output panel always shows what ran.
Also fixes lan-info's type-check: socket.getaddrinfo sockaddr is loosely typed,
so str(infos[0][4][0]) makes the address an unambiguous str.
core 94 green; ruff clean; verified POST /programs/lan-info/check returns output.
Paul Payne
392d9039d8