A personal website builder for the Atmosphere

Add feasibility assessment, decisions (ADRs + product log), research checkpoints, and project direction master

- docs/FEASIBILITY.md: full assessment and build-it verdict - docs/decisions/: product decisions log (PD-1..7) and ADRs 0001-0008 (ADR 0008 v1 scope is Proposed, pending ratification) - docs/research/: dated checkpoints of ecosystem landscape, lexicon feasibility, and monetization research with sources - README.md: direction, ethos, codename note (Fahrenheit stays internal) - AGENTS.md + CLAUDE.md: working agreements for future sessions Wind bless you. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014mXNfP5m9NhhjVgM5VVJ5E