Adds the github key to FUNDING.yml and links GitHub Sponsors from README and SUPPORT so both channels are visible; the org still needs to complete GitHub's Sponsors onboarding for the button to render.
New hero with light and dark logo via <picture>, fresh production
screenshots (dashboard hero plus four-image gallery covering stacks,
editor, fleet, and logs), tighter capability list grouped by surface,
compose-first quick start with TLS reverse-proxy callout, dedicated
remote-nodes section, and a combined documentation/community/license
footer. Also adds .github/FUNDING.yml pointing at the Buy Me a Coffee
page so the Sponsor button surfaces on the repo page.
Anso