Enhance documentation on Zod codecs

[mwalkersigma]

Added explanation and examples for using codecs in Zod.

🎯 Changes

• Updated Schema Documentation to mention using codecs.

✅ Checklist

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• I have followed the steps in the Contributing guide.
  ( Doc Change No Code updated )
• I have tested this code locally with pnpm test:pr.

🚀 Release Impact

• This change affects published code, and I have generated a changeset.
• This change is docs/CI/dev-only (no release).

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Latest commit: 365d87f

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[mwalkersigma]

I would review my documentation changes, and probably re write them, I am far from a good documentation writer, but I still wanted to contribute, since this helped me out alot!