v1.1.0

Added

• Project site with landing page and docs, built with Astro Starlight in site/, deployed to
  GitHub Pages at stackvitals.dev.
• dev:demo script for running the dev server with fictional demo data and no auth required.

Changed

• Replace logo with stack-and-heartbeat design and update favicon to match.

New Contributors

• @SteveWang92 made their first contribution in #1

Full Changelog: v1.0.0...v1.1.0