feat: add strict JSON parsing with String/CharBuffer support

[Dee66]

Reject JSON input with trailing characters after valid JSON.

Fixes #712

/claim #712

[Dee66]

demo.mp4

[Dee66]

Hi @jdegoes, I just wanted to clear up the confusion regarding the bounty.

This work fulfills the 'Strict JSON Parsing' bounty. The active Algora claim is here: https://algora.io/claims/qd2AdUcS1Scxy7df

I originally opened this in zio-blocks #571, but moved the implementation here to zio-schema following @plokhotnyuk's suggestion that it was a better architectural fit for JsonBinaryCodec.

The logic is complete and there are no merge conflicts. It should be ready to merge or update directly from your end. Let me know if everything looks good to get this settled.

[987Nabil]

New decode methods have nothing to do with the issue and are not needed

[Dee66]

@987Nabil

1. removed the methods as requested
2. reject JSON with trailing characters - Core fix that adds EOF checking to reject malformed JSON like {}} and "foo""
3. add type annotations for scala 3 - Compatibility fix adding explicit type annotations for Scala 3 implicit resolution