feat: add Higress ai model provider

[WindWaving]

💻 变更类型 | Change Type

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

🔀 变更说明 | Description of Change

设置-语言模型新增支持Higress AI provider

📝 补充信息 | Additional Information

语言模型新增Higress provider

对话信息

[vercel]

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[lobehubbot]

👍 @WindWaving

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[codecov]

Codecov Report

Attention: Patch coverage is 98.83811% with 30 lines in your changes missing coverage. Please review.

Project coverage is 92.74%. Comparing base (3f8d3db) to head (27acb2e).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/libs/agent-runtime/higress/index.ts	55.55%	20 Missing ⚠️
src/server/modules/AgentRuntime/index.ts	22.22%	7 Missing ⚠️
src/libs/agent-runtime/AgentRuntime.ts	57.14%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4755      +/-   ##
==========================================
+ Coverage   92.32%   92.74%   +0.42%     
==========================================
  Files         528      530       +2     
  Lines       37020    39599    +2579     
  Branches     3690     2373    -1317     
==========================================
+ Hits        34179    36728    +2549     
- Misses       2841     2871      +30     

Flag	Coverage Δ
app	92.74% <98.83%> (+0.42%)	⬆️
server	96.17% <ø> (ø)

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