* docs: new README as the product page, keep the old one as README-legacy
Rename README.md to README-legacy.md with a short note saying what it is,
and write a new README: hero, visual feature tour, all six nodes, then
install, data locations, upgrade notes, legacy pages, limits and testing.
Images are compressed WebP in assets/readme. Point the TESTING.md link at
the section's new home.
* docs: retake README screenshots, add shortcuts, pinned bar and trash limits
* chore: release 3.4.0
Vito
df70b5dfd6