The bite-sized implementation plan for the walking skeleton (parent spec
docs/specs/0001-walking-skeleton.md): nine TDD-structured tasks — scaffold,
config, gitea client, render, theme, cache, check, server, and main wiring —
building the live-render server for aura + data-server docs from Gitea main.
src/lib.rs registers modules incrementally so the lib compiles after every
task; main stays a stub until the final wiring task.
refs #1
