使用 PureJSON 以确保不会出现转义问题

[flycash]

在 Go 默认的 JSON 序列化中，如果是 <, > 之类的标签会被转化为 unicode 编码，也就是 \uxxxx 这种形态。在这种情况下，前端如果要渲染一些富文本，那么就会出现问题。

因此我们在这里改用 PureJSON，其底层实现设置不转移。

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.75%. Comparing base (0c3345e) to head (0ffe592).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #21   +/-   ##
=======================================
  Coverage   83.75%   83.75%           
=======================================
  Files          20       20           
  Lines         591      591           
=======================================
  Hits          495      495           
  Misses         88       88           
  Partials        8        8           

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