fix: fail loudly when a fan-out 'items' expression does not resolve to a list#2957

mnriem merged 1 commit into

github:maingithub/spec-kit:mainfrom

doquanghuy:fix/2956-fanout-items-fail-louddoquanghuy/spec-kit:fix/2956-fanout-items-fail-loudCopy head branch name to clipboard