feat: support json marshal in types

[siyul-park]

Changes Made

Related Issues

Additional Information

[codecov]

Codecov Report

Attention: Patch coverage is 64.75000% with 141 lines in your changes missing coverage. Please review.

Project coverage is 75.11%. Comparing base (ffbe993) to head (af3ed4c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
ext/pkg/mime/encoding.go	48.59%	37 Missing and 18 partials ⚠️
pkg/types/map.go	56.52%	24 Missing and 6 partials ⚠️
pkg/types/buffer.go	60.65%	17 Missing and 7 partials ⚠️
pkg/types/error.go	74.50%	9 Missing and 4 partials ⚠️
pkg/types/float.go	57.14%	4 Missing and 2 partials ⚠️
pkg/types/slice.go	70.00%	4 Missing and 2 partials ⚠️
pkg/types/binary.go	84.61%	3 Missing and 1 partial ⚠️
pkg/types/boolean.go	57.14%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #228      +/-   ##
==========================================
+ Coverage   74.99%   75.11%   +0.12%     
==========================================
  Files         141      141              
  Lines       10673    10900     +227     
==========================================
+ Hits         8004     8188     +184     
- Misses       2007     2033      +26     
- Partials      662      679      +17     

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[ewlkkf]

okay