Replaces the deleted upstream docs with svemagie-specific documentation.
README.md — human-readable setup guide: stack, local dev, env vars,
content structure, custom systems, deploy, repo layout, and upstream
relationship.
CLAUDE.md — AI working context: architecture, key custom systems
(garden, AI disclosure, nested tags, unfurl, OG), template gotchas
(garden-badge placement, blog.njk branch structure), deploy workflow,
common tasks, and a summary of divergence from the theme upstream.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
