Extend the LFS track-forward policy from GIFs to documentation and marketing
PNG screenshots (docs/screenshots, demo, top-level screenshots). Scoped to
doc/demo dirs only; app-runtime/build images (PWA icons, Electron tray icons,
the served Nerd Font) stay as real blobs so LFS-less build envs never embed a
pointer stub. No history rewrite / force-push. Stacks on the GIF LFS change.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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