Add clone-and-drop-.git setup steps and a tag-and-overwrite recipe for
updating just novaconium/, mirrored in README.md and /admin/docs/getting-started.
Full rewrite: swap out the v1 framework (src/, controllers/, views/,
twig/, sass/, skeleton/) for the working v2 codebase from phpproject
(App/, novaconium/, public/).
Documents project structure, Docker-only build/run commands, and
conventions so any coding agent (Claude Code, DeepSeek, etc.) can
orient quickly. CLAUDE.md imports AGENTS.md as the single source of
truth.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>