feat: implement local dev for ctx.access

[BSFishy]

Fixes AUTH-8942.

Adds support for mocking ctx.access locally for development. Currently we just mock static values although the infrastructure is there to eventually pull real info from production Access or enhance with a more sophisticated mock.

wrangler.jsonc

{
	"access": {
		"dev": {
			"aud": "my-app-aud-tag",
			"identity": {
				"email": "user@example.com",
				"name": "Test User"
			}
		}
	}
}

---

• Tests
  • Tests included/updated
  • Automated tests not possible - manual testing has been completed as follows:
  • Additional testing not necessary because:
• Public documentation
  • Cloudflare docs PR(s): [Workers] Add Cloudflare Access configuration docs cloudflare-docs#32618
  • Documentation not necessary because:

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[changeset-bot]

🦋 Changeset detected

Latest commit: 28bcd33

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

This PR includes changesets to release 8 packages

Name	Type
miniflare	Minor
wrangler	Minor
@cloudflare/deploy-helpers	Patch
@cloudflare/pages-shared	Patch
@cloudflare/remote-bindings	Patch
@cloudflare/runtime-types	Patch
@cloudflare/vite-plugin	Patch
@cloudflare/vitest-pool-workers	Patch

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[workers-devprod]

Codeowners approval required for this PR:

• ✅ @cloudflare/wrangler

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@cloudflare/autoconfig

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commit: 28bcd33

[petebacondarwin]

Looking good so far. Please can you address the Devin comments, which seem valid.

[petebacondarwin]

How come there are so many changes to this generated file??

[BSFishy]

needed new changes in workerd so regenerated this file. after a quick scan, seems to be the access blob header and a few deprecation renamings. let me know if anything looks wrong!

(i regenerated again a few minutes ago because i was having some issues with node versions a little bit ago, so hopefully it looks good now!)

[petebacondarwin]

We should probably block this PR on #15131

[petebacondarwin]

Assuming the CI jobs are happy.

[petebacondarwin]

I assume CI will fail due to the changes needed to land the latest workerd with the default nodejs_compat change.
I'll try to land #15123 instead

[workers-devprod]

Codeowners reviews satisfied