[migrate] replace Vercel with CloudFlare workers to deploy

[Copilot]

Replaces the Vercel deployment pipeline with CloudFlare Workers using @opennextjs/cloudflare, mirroring the approach from idea2app/MobX-RESTful-Shadcn#16.

New files

• open-next.config.ts — minimal CloudFlare adapter config via defineCloudflareConfig()
• wrangler.jsonc — worker name, compatibility flags (nodejs_compat), .open-next/worker.js entry, and assets binding

package.json

• Added @opennextjs/cloudflare (dep) and wrangler (devDep)
• Added scripts: preview, deploy, cf-typegen

.gitignore

• Added /.open-next/, .wrangler/, cloudflare-env.d.ts

pnpm-workspace.yaml

• Added esbuild and workerd to allowBuilds

CI workflow (deploy.yml)

• Removes Vercel action entirely; replaces with install + pnpm run deploy on default branch
• Preview branches: runs opennextjs-cloudflare build + wrangler versions upload with a sanitized branch slug as preview alias, then posts a summary comment to the associated PR

• Fixes 迁移 GoodActionHub.org 至 CloudFlare workers #11

Human changes

1. [optimize] update Upstream packages
2. [fix] 3 detail bugs

[github-actions]

Cloudflare Preview Deployment

• Branch: copilot/migrate-goodactionhub-to-cloudflare-workers
• Commit: 456fc4c
• Preview Alias: b-copilot-migrate-goodactionhub-to-cloudfl

Wrangler Output

⛅️ wrangler 4.118.0
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