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Done. The site is rebuilt, verified and documented.

What changed

• Privy removed. The auth adapter in src/auth.tsx now talks to Supabase Auth's Twitter provider directly: OAuth with PKCE, session storage and refresh, sign-out, and the handle read only from the stored Twitter identity. The Edge Function confirms the caller's session with Supabase Auth and no longer needs the jose library or any auth secret. Nothing imports the Privy or viem packages and the bundle contains neither.
• Whole site green. One green ramp plus a lime accent, defined as semantic tokens in src/styles.css. Dialog, fields, errors and buttons are all green; errors are told apart by icon, bold text and a lime border rather than hue.
• Pepe artwork as the background. The existing 1536×1024 illustration fills the viewport in a fixed layer with a green gradient overlay.
• Only "Submit a project" on the page. Navigation, hero text, directory, footer and all other buttons are gone. A visually hidden h1 remains for assistive technology. The dialog keeps its labels and its Verify, Submit, Done and Sign out controls because the flow cannot work without them.
• Docs rewritten: README.md, backend/README.md, DESIGN.md, docs/validation.md (also copied to artifacts/validation.md), licenses/NOTICE.md.

Checks run

Two findings were fixed during the review: a stale network error surviving sign-out, and OAuth callback cleanup corrupting the URL fragment.

Limitations you should know

• package.json and the lockfiles were left untouched because the task rules reject submissions that edit them. They still list the unused Privy and viem packages. Removing them is a one-line follow-up.
• No live Twitter OAuth or Supabase deployment was possible without credentials. The Deno suite for the Edge Function was rewritten but not executed because Deno is not installed here.
• The browser tool could not write screenshot files into the workspace, so screenshots were inspected inline and not committed.
• Submissions remain publicly readable through the API, but there is no listing page any more since the request removed all other page content.