[codex] add Cloudflare SSR for playground

[jderochervlk]

Context

This is the first slice of the playground SSR work. The docs app can keep prerendering static routes while letting /try run through Cloudflare Pages Functions.

Summary

• Enables React Router SSR for @rescript-lang/docs.
• Omits /try from React Router prerender output while keeping the existing stdlib prerender paths.
• Adds a Cloudflare Pages SSR entry/function path for /try and /try.data.
• Adds wrangler.toml for local Pages dev/deploy, including nodejs_compat and the Pages project name.
• Clears out before copying build/client so stale prerendered /try artifacts do not survive rebuilds.

Validation

• node .yarn/releases/yarn-4.13.0.cjs build:res
• node .yarn/releases/yarn-4.13.0.cjs workspace @rescript-lang/docs build:vite
• node_modules/.bin/oxfmt --check apps/docs/react-router.config.mjs apps/docs/app/entry.server.js apps/docs/server/react-router-handler.js apps/docs/functions/try.js apps/docs/functions/try.data.js
• yarn ci:format
• Wrangler Pages smoke test from fresh out: /, /try, and /try.data returned 200; /try.data included bundleBaseUrl and versions loader data.

No generated .jsx files are included in this PR.

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	guide	055055f	Commit Preview URL Branch Preview URL	Sep 14 2026, 01:38 PM

[jderochervlk]

@codex

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-14T13:19:27.986408Z	2621ca1	Manual request

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[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 2621ca1941

ℹ️ About Codex in GitHub

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[github-actions]

Guide Cloudflare deployment

⛅️ wrangler 4.114.0
────────────────────
🌀 Building list of assets...
✨ Read 16 files from the assets directory /home/runner/work/rescript-lang.org/rescript-lang.org/apps/guide/out
🌀 Starting asset upload...
No updated asset files to upload. Proceeding with deployment...
Total Upload: 0.31 KiB / gzip: 0.22 KiB
Worker Startup Time: 0 ms
Uploaded guide (1.36 sec)
Worker Version ID: 3ac5dc19-5ff9-4499-a00c-aef7bf335a87
Version Preview URL: https://3ac5dc19-guide.rescript.workers.dev
Version Preview Alias URL: https://vlk-enable-cloudflare-ssr-guide.rescript.workers.dev

To deploy this version to production traffic use the command wrangler versions deploy

Changes to non-versioned settings (config properties 'logpush' or 'tail_consumers') take effect after your next deployment using the command wrangler versions deploy

Changes to triggers (routes, custom domains, cron schedules, etc) must be applied with the command wrangler triggers deploy

[github-actions]

Cloudflare deployment

Deployement ID: f20de0bc-3d65-44d7-b093-4017a57aadad
Deployment Environment: preview

⛅️ wrangler 4.114.0
────────────────────
Uploading... (8764/8767)
Uploading... (8765/8767)
Uploading... (8766/8767)
Uploading... (8767/8767)
✨ Success! Uploaded 3 files (8764 already uploaded) (6.95 sec)

✨ Uploading _redirects
✨ Uploading Functions bundle
🌎 Deploying...
✨ Deployment complete! Take a peek over at https://f20de0bc.rescript-lang.pages.dev
✨ Deployment alias URL: https://vlk-enable-cloudflare-ssr.rescript-lang.pages.dev