[wrangler] Improve Email Routing plan and apply output

[DiogoSantoss]

Improve declarative Email Routing deploy output and apply performance.

• Color plan additions green, updates yellow, and deletions and conflicts red. Chalk continues to emit plain markers when color is disabled.
• Apply independent zones concurrently with a limit of 10 active zones. Changes within each zone remain serial in server-provided plan order so capacity-sensitive delete-before-add transitions remain safe.
• Keep failure reporting deterministic in plan order and count every attempted change in progress output.

---

• 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):
  • Documentation not necessary because: this changes terminal presentation and apply performance without changing configuration or API behavior.

[changeset-bot]

🦋 Changeset detected

Latest commit: 4db8c0d

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

This PR includes changesets to release 5 packages

Name	Type
wrangler	Patch
@cloudflare/deploy-helpers	Patch
@cloudflare/vite-plugin	Patch
@cloudflare/vitest-pool-workers	Patch
@cloudflare/remote-bindings	Patch

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[workers-devprod]

Codeowners approval required for this PR:

• ✅ @cloudflare/wrangler

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.

[pkg-pr-new]

@cloudflare/autoconfig

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@cloudflare/config

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create-cloudflare

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@cloudflare/deploy-helpers

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@cloudflare/kv-asset-handler

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miniflare

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@cloudflare/pages-shared

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@cloudflare/unenv-preset

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@cloudflare/vite-plugin

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@cloudflare/vitest-pool-workers

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@cloudflare/workers-auth

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@cloudflare/workers-editor-shared

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@cloudflare/workers-utils

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wrangler

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commit: 4db8c0d

[workers-devprod]

Codeowners reviews satisfied

[DiogoSantoss]

Can we merge ?

[jamesopstad]

Can we merge ?

You widened the scope of the PR after my approval so I've dismissed it. I can review again but currently lots of tests are failing. It probably needs a rebase.

[DiogoSantoss]

You widened the scope of the PR after my approval so I've dismissed it. I can review again but currently lots of tests are failing. It probably needs a rebase.

Rebased. I think the remaining failures are not related to my changes, is there a chance they are flaky ?