test : add unit tests for clamp function

[tmdeveloper007]

Summary of What Needs to be Done:
Add unit tests for the clamp helper function in src/lib/repo-health.ts. Tests must use vitest framework and import actual source code.

Changes that Need to be Made:

• Create test using vitest describe/it/expect
• Test value within range returns unchanged
• Test value below min returns min
• Test value above max returns max
• Test with non-finite values

Impact that it would Provide:

• Ensures clamp handles edge cases correctly
• Critical for all scoring functions

[Harsh-Codes-77]

/assign

[github-actions]

✅ Closed as completed!

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