- Move infrastructure into businesses/00-infrastructure; add 01-06 numbered dirs
ordered by importance (secure, support, systems, cloud, web, software)
- Add per-business branding.html (accent color scheme + ChatGPT logo prompt)
- Add NN-name.md scaffold/research/todo docs for the six planned divisions
- Make divisions/ the formal-docs library: parent + infrastructure briefs,
legal-structure, investment-research
- Add root README map and businesses/ index; empty READMEs per dir
- Fix all relative links broken by the moves
