* Renamed root menu category from 'deepsoch' to 'Deepsoch AI'.
* Added centralized branding module (core/branding.py) holding company,
email, website, and developer info — single source of truth for every
surface that shows contact details.
* Every node now has a DESCRIPTION tooltip (visible in the node search
menu and on hover) ending with the developer signature.
* Added web/about.js — right-click menu on every DeepSoch node now
shows About / Contact / Visit Website entries that open the email
client or the company website.
* README updated with the website row in the developer table.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
