Play Framework

fix: exclude framework/tailwindcss from ant package

The standalone Tailwind v4 CLI binary at framework/tailwindcss is a
build-time tool used only by framework/tailwind/build-css.sh to
regenerate the pre-built CSS files. It's gitignored (each dev installs
their own per-OS/arch binary), 72 MB, and not needed at runtime by any
module — testrunner, docviewer, and the app skeleton serve their
already-compiled play-tailwind.css files directly.

Without this exclude, any dev who ran build-css.sh and then ant package
shipped a 72 MB binary in the release zip — and the binary was the
wrong architecture for most consumers anyway. Add framework/tailwindcss
(no /**, since it's a single file) alongside the existing framework/dist
and framework/classes excludes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>