Add precision option to oklch output

[jpc-ae]

Cleaned up return logic and added precision to formatOKLCH function (will add toggle is separate change)

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Project	Deployment	Preview	Comments	Updated (UTC)
color-src	Error			Nov 16, 2025 2:23am

[yorukot]

Hey, first of all, thank you for your contribution.
But I think there is an error. Could you fix it? Thanks.

Failed to compile.
./lib/colorConversion.ts:211:156
Type error: 'oklch.alpha' is possibly 'undefined'.
  209 |   const includeAlpha = oklch.alpha !== undefined && 1 > oklch.alpha && oklch.alpha > 0.001;
  210 |
> 211 |   const values = `${oklch.l.toFixed(lPrecision)}${separator}${oklch.c.toFixed(cPrecision)}${separator}${oklch.h.toFixed(hPrecision)}${includeAlpha ? ` / ${oklch.alpha.toFixed(aPrecision)}` : ''}`
      |                                                                                                                                                            ^
  212 |   
  213 |   return simplified ? values : `oklch(${values})`;
  214 | }
Next.js build worker exited with code: 1 and signal: null
 ELIFECYCLE  Command failed with exit code 1.
Error: Command "pnpm run build" exited with 1