Two issues caused the studio frontend to render without any styling
when installed via `pip install` (non-editable):
1. `pyproject.toml` package-data only included `frontend/dist/**/*`.
The `include-package-data = true` setting relies on `git ls-files`,
which fails in isolated builds (pip/uv copy source to a temp dir
without `.git`). This meant `frontend/src/`, `package.json`,
`vite.config.ts`, and other build files were missing from the
installed package. Tailwind had no source files to scan.
2. Python venvs auto-create a `.gitignore` with a bare `*` pattern.
Tailwind v4's oxide scanner walks parent directories and respects
`.gitignore` -- so even when source files are present, the venv's
`*` pattern causes the scanner to skip all `.tsx` files. The result
is a 34KB CSS skeleton with zero utility classes instead of the
expected 265KB.
Additionally, Vite adds `crossorigin` to script/link tags by default.
This forces CORS mode on font subresource loads, which Firefox
HTTPS-Only Mode does not exempt -- causing all @font-face downloads
to fail silently when Studio is served over HTTP.
Changes:
- pyproject.toml: Expand package-data to include frontend source,
config files, setup scripts, and backend requirements using glob
patterns (no node_modules)
- studio/setup.sh: Temporarily hide parent .gitignore files containing
a bare `*` during `npm run build`, with trap-based restoration
- studio/backend/main.py: Strip `crossorigin` attributes from HTML
at serve time so fonts load correctly on any protocol
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