43c1053bd7
Add comprehensive FOSS compliance documentation including: - COPYRIGHT.md: copyright holders and code ownership - LICENSING.md: GPL-3.0-or-later policy and source offer - NOTICE: attribution requirements for permissive licenses - THIRD-PARTY-LICENSES.md: third-party software inventory - TRADEMARKS.md: trademark notices and non-affiliation - os-release hook and files: identify FWS as separate from Arch Linux These documents establish legal compliance baseline for GPL/AGPL/Apache/MIT/BSD obligations before public distribution.