fix: inline chat code blocks controller

[Ricbet]

Types

• 🐛 Bug Fixes

Background or solution

之前处理模型回答的代码块逻辑有问题，现调整成更合理的方式

Changelog

修复 inline chat 流式渲染偶现代码块不完整的问题

[railway-app]

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 32 lines in your changes missing coverage. Please review.

Project coverage is 55.08%. Comparing base (5a66542) to head (14771f1).

Files	Patch %	Lines
...owser/widget/inline-chat/inline-chat-controller.ts	0.00%	19 Missing and 3 partials ⚠️
...rowser/widget/inline-diff/inline-diff-previewer.ts	0.00%	9 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3809      +/-   ##
==========================================
- Coverage   55.08%   55.08%   -0.01%     
==========================================
  Files        1550     1550              
  Lines       94558    94559       +1     
  Branches    19375    19371       -4     
==========================================
- Hits        52088    52085       -3     
- Misses      35272    35277       +5     
+ Partials     7198     7197       -1     

Flag	Coverage Δ
jsdom	50.52% <0.00%> (-0.01%)	⬇️
node	15.56% <0.00%> (-0.01%)	⬇️

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