add option to omit validation keywords

[devanshi00]

Closes #253

Changes

• Added an optional omitValidators parameter to JSONSchemaVisitor, defaulting to false to preserve existing behavior.

• Updated getFieldOrScalarDeclarationValidatorsForSchema() to skip emitting validator-derived JSON Schema keywords when omitValidators is enabled.

• Added JSDoc documentation for the new parameter and its effect on generated schemas.

• Covered all validator-derived keywords emitted by the visitor, including:

  • pattern
  • format (uuid, date-time)
  • minLength
  • maxLength
  • minimum
  • maximum
  • exclusiveMinimum
  • exclusiveMaximum
  • multipleOf

Flags

• Default behavior is unchanged; validator keywords continue to be emitted unless explicitly disabled.
• Intended to improve compatibility with strict LLM structured-output APIs such as OpenAI and Anthropic, which reject these validation keywords.

Screenshots or Video

Related Issues

• Issue JSONSchemaVisitor: add option to omit validation keywords for strict structured-output consumers #253

Author Checklist

• Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• Vital features and changes captured in unit and/or integration tests
• Commit messages follow AP format
• Extend the documentation, if necessary
• Merging to main from fork:branchname

[DianaLease]

Looks good, but can you fix this lint errors?

/Users/runner/work/concerto-codegen/concerto-codegen/lib/codegen/fromcto/jsonschema/jsonschemavisitor.js
Error:   406:42  error  Trailing spaces not allowed  no-trailing-spaces
Error:   486:54  error  Trailing spaces not allowed  no-trailing-spaces
Error:   622:60  error  Trailing spaces not allowed  no-trailing-spaces