load_cache was a duplicate of logic now living in build.load_stars.
Switch the call site to the shared helper and remove the redundant
local function and its tests.
Co-Authored-By: Claude <noreply@anthropic.com>
Replaces MkDocs with a bespoke Python site generator using Jinja2 templates
and Markdown. Adds uv for dependency management, GitHub Actions workflow for
deployment, and Makefile targets for local development (fetch_stars, build,
preview, deploy).
Co-Authored-By: Claude <noreply@anthropic.com>