change that introduces fix to issue 107

[jjijon7000]

Summary

Fix enum fields disappearing from generated blank code.json templates.

This addresses Issue #107, where enum-backed fields were being omitted from the blank code.json even though they are part of the CMS schema. The generator now preserves blank placeholder values for those enum fields instead of letting them get dropped during JSON serialization or overwritten as undefined during metadata merging.

The generated code.json now includes the full schema shape, including:

• status
• repositoryHost
• repositoryVisibility
• softwareType
• maintenance
• repositoryType
• fismaLevel

A regression test was added to verify the generated PR payload still contains those enum keys in the blank template.

Testing

• npx jest --runInBand src/__tests__/unit/main.test.ts
• npx jest --runInBand