daisyUI is an npm plugin, so the standalone Tailwind CLI can't load it; this
adds a real build. Themes are configured as `light --default, dark
--prefersdark`, so dark follows the OS with no JavaScript, and an explicit
data-theme (set by the toggle) overrides it.
The built CSS is committed, so `uv run manage.py runserver` remains all a
Python dev needs; `npm run watch` is only for those touching styles.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
