revert: clipboard sync at /clip (revert #41)

[kaiiiichen]

Summary

Reverts #41 (clipboard sync feature) to roll the repo back to the pre-clip state on main. Per request — feature work paused.

This is a clean git revert -m 1 of the merge commit, so reapplying the feature later is just git revert <this-commit>.

What gets removed

• app/auth/{callback,sign-out}/
• app/clip/**
• lib/clip/**
• lib/supabase/**
• proxy.ts
• @supabase/ssr from package.json
• Doc + .env.example additions for Clipboard Sync

Out of scope (handle manually if needed)

• Supabase tables clipboards / clipboard_members / clipboard_entries and any RLS policies — still present in the database
• Supabase Auth redirect URL allowlist entries
• Vercel domain clip.kaichen.dev if it was added
• ADMIN_EMAILS / NEXT_PUBLIC_SUPABASE_ANON_KEY env vars

Test plan

• npm run lint && npm run typecheck && npm run test && npm run build green; build output no longer lists /clip, /clip/admin, /clip/board/[id], /auth/callback, /auth/sign-out, or a Proxy (Middleware) layer.

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Project	Deployment	Actions	Updated (UTC)
kaichen.dev	Ready	Preview, Comment	Apr 26, 2026 10:30am