Provide validation around experimental_serve_directly usage

[WillTaylorDev]

Fixes #0000

Gives guidance on usage of serve_directly in the following cases:

• (Warning) User worker runs first but no assets binding
• (Error) User worker runs first but no user worker provided

• Tests
  • TODO (before merge)
  • Tests included
  • Tests not necessary because:
• E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
  • I don't know
  • Required
  • Not required because: n/a
• Public documentation
  • TODO (before merge)
  • Cloudflare docs PR(s):
  • Documentation not necessary because: n/a

[changeset-bot]

🦋 Changeset detected

Latest commit: 3ce560e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
wrangler	Minor
@cloudflare/vitest-pool-workers	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

A wrangler prerelease is available for testing. You can install this latest build in your project with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-wrangler-7537

You can reference the automatically updated head of this PR with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/7537/npm-package-wrangler-7537

Or you can use npx with this latest build directly:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-wrangler-7537 dev path/to/script.js

Additional artifacts:

wget https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-cloudflare-workers-bindings-extension-7537 -O ./cloudflare-workers-bindings-extension.0.0.0-va6001af11.vsix && code --install-extension ./cloudflare-workers-bindings-extension.0.0.0-va6001af11.vsix

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-create-cloudflare-7537 --no-auto-update

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-cloudflare-kv-asset-handler-7537

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-miniflare-7537

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-cloudflare-pages-shared-7537

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-cloudflare-unenv-preset-7537

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-cloudflare-vitest-pool-workers-7537

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-cloudflare-workers-editor-shared-7537

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-cloudflare-workers-shared-7537

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/12409818669/npm-package-cloudflare-workflows-shared-7537

Note that these links will no longer work once the GitHub Actions artifact expires.

---

[email protected] includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	workspace:*	3.20241205.0
workerd	1.20241205.0	1.20241205.0
workerd --version	1.20241205.0	2024-12-05

Please ensure constraints are pinned, and miniflare/workerd minor versions match.

[CarmenPopoviciu]

thank you so much @WillTaylorDev for working on this! much amaze 🚀