docs(appsync): add placeholder Query type for improved schema compatibility

[azarboon]

Issue # (if applicable)

Closes #.

Reason for this change

While the current schema is technically valid with a single root Mutation type, most GraphQL clients and tools expect a default Query operation for introspection and standard queries. This PR introduces a minimal placeholder Query type to improve compatibility and align with common GraphQL conventions.

Description of changes

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<!— What new or updated IAM permissions are needed to support the changes being introduced ? -->

Description of how you validated changes

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[aws-cdk-automation]

The pull request linter has failed. See the aws-cdk-automation comment below for failure reasons. If you believe this pull request should receive an exemption, please comment and provide a justification.

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✅ Updated pull request passes all PRLinter validations. Dismissing previous PRLinter review.

[kaizencc]

Thanks @azarboon

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.52%. Comparing base (0546ec2) to head (393ffec).
Report is 10 commits behind head on main.

Additional details and impacted files

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  Files         106      106           
  Lines        6948     6948           
  Branches     1287     1287           
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  Hits         5595     5595           
  Misses       1175     1175           
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Flag	Coverage Δ
suite.unit	80.52% <ø> (ø)

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Components	Coverage Δ
packages/aws-cdk	80.52% <ø> (ø)

[mergify]

This pull request has been removed from the queue for the following reason: pull request dequeued.

Pull request #32633 has been dequeued. The pull request has been synchronized by a user

You should look at the reason for the failure and decide if the pull request needs to be fixed or if you want to requeue it.

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Pull request has been modified.

[azarboon]

@Mergifyio requeue

[mergify]

requeue

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[azarboon]

@kaizencc Thanks for approving! I noticed the branch was out of sync, so I updated it. When the issue persisted, I synced my fork directly. It seems the issue is resolved now, but the PR still can't be merged. Since this is my first contribution to aws-cdk, I’d really appreciate your help in guiding me through the final steps. Thanks again!

[azarboon]

Closing this PR to start fresh with a clean branch. I’ll do my best to properly sync the new branch with the latest upstream changes and ensure it contains only the intended edits. A new PR will follow shortly. Thank you for your time and patience!

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AWS CodeBuild CI Report

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• Commit ID: 5c4bec4
• Result: SUCCEEDED
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