🧹 Code Health: Deduplicate setNested function into scripts/utils.js

[akutuva21]

🎯 What: The duplicated setNested function in scripts/validate-metadata.js and scripts/generate-manifest.js has been extracted to the shared scripts/utils.js module.

💡 Why: This reduces code duplication, centralizes prototype pollution safeguards, and improves the overall maintainability and consistency of the repository scripts.

✅ Verification:

• The full test suite (node --test) ran and passed successfully.
• Ran node scripts/validate-metadata.js which validated all 397 metadata files without errors.
• Ran node scripts/generate-manifest.js --root . --output manifest.json which regenerated the manifest entries properly.
• All code review feedback confirmed the change is correct and safe.

✨ Result: The setNested utility is now centralized, improving code health without changing script behavior.

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PR created automatically by Jules for task 4063190871613010579 started by @akutuva21

[google-labs-jules]

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[akutuva21]

pull the latest code and resolve merge conflicts

[google-labs-jules]

pull the latest code and resolve merge conflicts

I have pulled the latest changes, resolved the merge conflicts, and verified that everything works perfectly.