Properly error on Hono projects in auto-config

[dario-piotrowicz]

Fixes https://jira.cfdata.org/browse/DEVX-2320

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• Tests
  • Tests included/updated
  • Tests not necessary because:
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: tracked elsewhere
• Wrangler V3 Backport
  • Wrangler PR:
  • Not necessary because: autoconfig is not in v3

A picture of a cute animal (not mandatory, but encouraged)

[changeset-bot]

🦋 Changeset detected

Latest commit: 1083cb9

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

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[claude]

Claude finished @dario-piotrowicz's task in 37s —— View job

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Changeset Review

Reviewing the changeset file according to repository guidelines.

Tasks:

• Read changeset guidelines from .changeset/README.md
• Read the changeset file .changeset/slow-moose-cross.md
• Validate version type (patch/minor/major)
• Check changelog quality and description
• Verify no h1/h2/h3 markdown headers
• Provide final assessment

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Review Results

✅ Changeset validation passed

The changeset .changeset/slow-moose-cross.md meets all requirements:

1. Version Type: ✅ Correctly uses patch - This is a bug fix that properly handles error cases for Hono projects
2. Changelog Quality: ✅ Good quality - The description clearly explains:
   • What the problem is (auto-config can't reliably handle Hono projects)
   • What commands are affected (wrangler setup and wrangler deploy --x-autoconfig)
   • What the fix does (properly errors with a helpful message)
3. Markdown Headers: ✅ No h1/h2/h3 headers present
4. Package Coverage: ✅ Correctly targets wrangler package

The changeset follows the recommended format with a clear, imperative description that explains both the symptom and the fix. This matches the "good examples" pattern for bug fixes shown in the guidelines.

Note: I can see from the review comments that @ascorbic suggested improved wording, and @dario-piotrowicz accepted it. The current changeset content reflects that improved wording.

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commit: 1083cb9