Moves the 91 MB product-tour GIF out of the repo entirely. Standard
clones and CI checkouts no longer pull it — even LFS-aware clients
previously downloaded the blob on checkout, which made `git pull`
noticeably slower for everyone.
The file now lives as a release asset on a separate repo and is
referenced from README via its GitHub Fastly-backed download URL.
Removes the LFS tracking entry from .gitattributes.
- Animated TREK logo (light + dark variants) via <picture> + prefers-color-scheme
- 60-second product tour GIF (91MB, 1100x619, 10fps) stored via Git LFS so
standard clones don't pull it by default
- 9 feature tiles as composite SVG grids: 3x3 on desktop, 2x4 on mobile
- 8 fresh screenshots captured from dev.pakulat.org
- Feature details folded into a collapsible 2-column table
- Environment variables moved behind a collapsible
- Roadmap badge added next to Live Demo / Docker / Discord
- Removed redundant Community section and footer