LIT Platform v2.6.7

Fixes /apps/{path} — the endpoint serving an app's JS/CSS/asset files — to honor LIT_DATA_DIR/local-mode instead of only the multi-tenant /data/{team}/apps/ mount. Previously 403'd every app asset (Connect-your-tools, any future Team App) on any install without a literal /data/ directory at the filesystem root — every pip-install and desktop user outside our own office network. Cython-compiled wheels for Python 3.10-3.13.