[Workers] update local dev tunnel guides and add changelog

[edmundhung]

Summary

We just shipped named tunnel support for both Wrangler and the Cloudflare Vite plugin. This updates the docs and add a changelog entry.

Screenshots (optional)

Documentation checklist

• Is there a changelog entry (guidelines)? If you don't add one for something awesome and new (however small) — how will our customers find out? Changelogs are automatically posted to RSS feeds, the Discord, and X.
• The change adheres to the documentation style guide.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/assets/images/	@cloudflare/pm-changelogs, @cloudflare/product-owners
/src/content/changelog/	@cloudflare/pm-changelogs, @cloudflare/product-owners
/src/content/docs/workers/	@cloudflare/workers-docs, @GregBrimble, @irvinebroque, @mikenomitch, @korinne, @WalshyDev, @cloudflare/deploy-config, @cloudflare/product-owners, @cloudflare/wrangler, @MattieTK, @cloudflare/dev-plat-leads
/src/content/docs/workers/wrangler/	@cloudflare/wrangler, @irvinebroque, @cloudflare/product-owners, @MattieTK

[github-actions]

Preview URL: https://e8d77da9.preview.developers.cloudflare.com
Preview Branch URL: https://edmundhung-dev-server-named-tunnel-support.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/workers/development-testing/local-dev-tunnels/	https://edmundhung-dev-server-named-tunnel-support.preview.developers.cloudflare.com/workers/development-testing/local-dev-tunnels/
https://developers.cloudflare.com/workers/vite-plugin/reference/api/	https://edmundhung-dev-server-named-tunnel-support.preview.developers.cloudflare.com/workers/vite-plugin/reference/api/
https://developers.cloudflare.com/changelog/post/2026-05-18-local-dev-tunnels/	https://edmundhung-dev-server-named-tunnel-support.preview.developers.cloudflare.com/changelog/post/2026-05-18-local-dev-tunnels/
https://developers.cloudflare.com/workers/wrangler/commands/workers/	https://edmundhung-dev-server-named-tunnel-support.preview.developers.cloudflare.com/workers/wrangler/commands/workers/

[irvinebroque]

lgtm + @MattieTK @nikitacano

[nikitacano]

Let's link to https://developers.cloudflare.com/cloudflare-one/access-controls/ for Access to make sure people understand how to protect these endpoints without searching.

[edmundhung]

Added the link to Cloudflare Access.

[MattieTK]

nit: We don't show 'press t + enter` to open a tunnel in this gif (presumably because we are running a pre-release) but it would be great to show it so it's clearer what's happening.

[edmundhung]

Updated the demo gif to include a press t + enter hint. This is running off a pre-release and should be released either later today or Monday.