Improved Theme Assets and Upload Reliability

Theme assets, uploaded images, and previewed changes now appear where expected rather than surfacing stale versions or showing up in the wrong site. Three improvements land together in this release.

Stricter theme asset caching

Theme assets now use immutable cache headers, protecting public sites from stale theme files and broken previews after a theme update.

Larger file uploads

The upload limit has been raised to accommodate larger images, videos, and theme asset bundles that were previously rejected.

Site-scoped media uploads

Media client uploads are now scoped to each organisation's site, preventing mix-ups that could cause assets from one site to appear in another.