Support not converting const to enum

[TastyPi]

Provides a new convertConstToEnum option in order to fix #876.

I had to pipe the plugin options throughout all the functions in openapi/util.js, let me know if there was a better way to do that.

Checklist

• run npm run test and npm run benchmark

npm run benchmark does not seem to exist? npm run test succeeds.

• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[mcollina]

Sorry for being late. This now conflicts.

[TastyPi]

@mcollina rebased, PTAL

[Copilot]

Pull Request Overview

This pull request adds a convertConstToEnum configuration option to control whether JSON Schema const keywords are automatically converted to enum in OpenAPI specifications. The const keyword was added in OpenAPI 3.1 but is not supported by all tools (like swagger-ui), so this option allows users to preserve const when using OpenAPI 3.1.0+ or convert it to enum for compatibility.

Key changes:

• Added convertConstToEnum option with a default value of true for backward compatibility
• Modified schema conversion logic to conditionally convert const to enum based on the option
• Added comprehensive tests for both behaviors (preserving const and converting to enum)

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
lib/mode/dynamic.js	Sets default value of convertConstToEnum to true
lib/spec/openapi/utils.js	Adds convertConstToEnum to options flow and implements conditional conversion logic
lib/spec/openapi/index.js	Passes options through to utility functions
index.d.ts	Adds TypeScript type definition and documentation for the new option
test/spec/openapi/schema.test.js	Adds tests for both preserving const and converting to enum

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[Eomm]

We should update the readme as well

[TastyPi]

@Eomm Updated the README