Add jsonStrictBinding that always enables DisallowUnknownFields on the
JSON decoder, independent of the global EnableDecoderDisallowUnknownFields
flag. Exposes BindJSONStrict and ShouldBindJSONStrict on Context.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Relocate binding body tests
Every test file should be related to a tested file.
Remove useless tests.
* Add github.com/stretchr/testify/require package