feat: add waitForEvent and sendEvent support for local dev

[LuisDuarte1]

This uses some @ts-expect-errors since these are not in workers-types, yet.

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• Tests
  • TODO (before merge)
  • Tests included
  • Tests not necessary because:
• Wrangler / Vite E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
  • I don't know
  • Required
  • Not required because:
• Public documentation
  • TODO (before merge)
  • Cloudflare docs PR(s): workflows: new docs cloudflare-docs#21313 (should be merged before docs tho)
  • Documentation not necessary because:
• Wrangler V3 Backport
  • TODO (before merge)
  • Wrangler PR:
  • Not necessary because: new feature

[changeset-bot]

🦋 Changeset detected

Latest commit: e1e0354

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

This PR includes changesets to release 6 packages

Name	Type
miniflare	Patch
@cloudflare/workflows-shared	Patch
@cloudflare/pages-shared	Patch
@cloudflare/vite-plugin	Patch
@cloudflare/vitest-pool-workers	Patch
wrangler	Patch

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[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/14305979562/npm-package-wrangler-8775

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

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/8775/npm-package-wrangler-8775

Or you can use npx with this latest build directly:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-wrangler-8775 dev path/to/script.js

Additional artifacts:

cloudflare-workers-bindings-extension:

wget https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-workers-bindings-extension-8775 -O ./cloudflare-workers-bindings-extension.0.0.0-v8ee9f92d6.vsix && code --install-extension ./cloudflare-workers-bindings-extension.0.0.0-v8ee9f92d6.vsix

create-cloudflare:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-create-cloudflare-8775 --no-auto-update

@cloudflare/kv-asset-handler:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-kv-asset-handler-8775

miniflare:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-miniflare-8775

@cloudflare/pages-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-pages-shared-8775

@cloudflare/unenv-preset:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-unenv-preset-8775

@cloudflare/vite-plugin:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-vite-plugin-8775

@cloudflare/vitest-pool-workers:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-vitest-pool-workers-8775

@cloudflare/workers-editor-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-workers-editor-shared-8775

@cloudflare/workers-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-workers-shared-8775

@cloudflare/workflows-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/14305979562/npm-package-cloudflare-workflows-shared-8775

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:*	4.20250404.0
workerd	1.20250405.0	1.20250405.0
workerd --version	1.20250405.0	2025-04-05

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

[petebacondarwin]

Rebased on top of the latest workerd and workers-types.
Nearly fixed but there a problem in workflows-shared/src/engine.ts where we need to pass a WorkflowStep object to the target.run() function. Previously this was just a Context instance but that is no longer valid.