AddSize32ToBundle downscales the largest existing sprite (usually size 64)
to generate a 32 visualization, so every bundle — including the
source-provided gamedata furniture — carries a 32 frame without needing the
original SWF. AddSize32AllNitros rewrites every existing .nitro across all
nitro directories (incl. /var/www/Gamedata/bundled/furniture) and is
idempotent (bundles that already have 32 are skipped). Expose it via a Studio
button and the background admin endpoint POST /api/admin/import/furni/add-size32.