Bash equivalent of the PowerShell build change: Claude gets general.md
inlined into CLAUDE.md plus one generated skill per rule-skills.tsv entry;
Codex keeps every rule as a plain file with unchanged AGENTS.md text.
Adds the same build-time validation as the PowerShell script: duplicate
agent/plugin/rule-skill names, JSON validity (jq, falling back to a
functional python3 probe), balanced TOML quotes/brackets, and a
tree-wide (not per-file) leftover-placeholder scan for speed.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>