chore(build): update tsDocGen.js with support for enum parsing

[jenny-s51]

Closes patternfly/patternfly-org#4756

What Changed

Adds enum value extraction to tsDocGen.js.

Modified cli/tsDocGen.js to extract enum values from TypeScript union types into clean arrays, making the generated JSON more consumable for LLMs towards the effort to support JSON schemas. This change is essential for patternfly/patternfly-org#4705.

Why This Matters

LLMs currently struggle with union type strings and can generate invalid prop values with our existing approach to parsing. This change provides clean, structured data that will enable accurate code generation via JSON schemas that will support this improvement to our parsing logic for our existing TS components. Clean arrays are fully machine-readable and unambiguous for any AI system.

Current problem: LLM sees "'primary' | 'secondary'" and might generate variant="main"
With this fix: LLM sees ["primary", "secondary"] and generates variant="primary"

Before: "type": "'primary' | 'secondary' | 'tertiary'"
After: "type": "'primary' | 'secondary' | 'tertiary'", "enumValues": ["primary", "secondary", "tertiary"]

Files Changed

• cli/tsDocGen.js - Added one function (extractEnumValues) and 4 lines to add enumValues field

Testing Instructions

Full Test (2 minutes)

npm install && npm run build:props
grep -A 5 "enumValues" dist/props.json | head -10

What to look for:

• ✅ "enumValues": ["primary", "secondary", ...] arrays in the JSON
• ✅ All existing props still present (backward compatible)
• ✅ Original type field unchanged

[github-actions]

🎉 This PR is included in version 1.13.3 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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