validate.py: pipefail + per-stage bad-flag scan

generate.py: fix flag-leak + find -size direction

Card: document bug fixes; update counts to 54,803

Clean 2 generator bugs + 5 journalctl (54,803 rows)

Card: fix stray-tilde strikethrough

validate.py: sudo-strip fix, --dump-errors, delete prompt

Rewrite dataset card

Remove 43 malformed commands (54,957 rows)

add cleaned real-phrasing seed cache

add argument-fidelity checker

add validator (strict + permissive modes)

add generator

add dataset card: Bash Instruct II 55k

add dataset (55k, v2)

initial commit