Runs Tailwind in --watch mode. Recompiles priv/static/app.css
on every save to assets/css/app.css or any HEEx source under
lib/mailglass_admin/.
Usage
mix mailglass_admin.assets.watchIntended for maintainer dev loops only — production builds go through
mix mailglass_admin.assets.build which minifies and is the CI gate
target (git diff --exit-code priv/static/).