🐛 fix(chat): Improve response animation merging logic

[sxjeru]

💻 变更类型 | Change Type

• ✨ feat
• 🐛 fix
• ♻️ refactor
• 💄 style
• 👷 build
• ⚡️ perf
• 📝 docs
• 🔨 chore

🔀 变更说明 | Description of Change

修复带有 responseAnimation.speed 参数的 provider 输出。

• fix 更新到最新版（1.94.4）导致火山引擎API不可用 #8156

📝 补充信息 | Additional Information

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[gru-agent]

TestGru Assignment

Summary

Link	CommitId	Status	Reason
Detail	a0db652	✅ Finished

Files

File	Pull Request
src/services/chat.ts	❌ Failed (I failed to setup the environment.)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.89%. Comparing base (dd4ab3f) to head (a0db652).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##             main    #8159     +/-   ##
=========================================
  Coverage   87.89%   87.89%             
=========================================
  Files         836      836             
  Lines       61804    61807      +3     
  Branches     5650     3925   -1725     
=========================================
+ Hits        54322    54325      +3     
  Misses       7482     7482             

Flag	Coverage Δ
app	87.89% <100.00%> (+<0.01%)	⬆️
server	95.67% <ø> (ø)

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Name	Status	Preview	Comments	Updated (UTC)
lobe-chat-preview	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 12, 2025 3:22am

[Wxh16144]

哎呀，看 discord 才知道你这边先修复了..

[lobehubbot]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

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Oh, I only found out that you have fixed it first after looking at discord.

[Wxh16144]

哎呀，看 discord 才知道你这边先修复了..

我在 #8160 这 PR 修复了？看看方式是不是差不多。

[sxjeru]

@Wxh16144 感觉你那个更好，我这边先关了吧。

[lobehubbot]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

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@Wxh16144 It's OK, then I'll close it first.