The site has flip-flopped on the snow effect every winter (add it,
remove it, repeat), meaning a PR round-trip each time. Instead, restore
the winter.js/is-land assets and gate them behind a new admin-toggleable
setting so the effect can be switched on/off from /admin/settings
without touching code.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0113BVPXDpEk9HPEqXvSG2WQ
Swap the syntax highlighting library and its CSS theme (zenburn -> nord,
matching tempest's class names), add padding to code blocks, and commit
the missing compressed winter.js assets from the earlier asset rename.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
