.Net: Bug: chat/completions no reasoning

[li61609]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Screenshots
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Platform

• Language: [e.g. C#, Python]
• Source: [e.g. NuGet package version 0.1.0, pip package version 0.1.0, main branch of repository]
• AI model: [e.g. OpenAI:GPT-4o-mini(2024-07-18)]
• IDE: [e.g. Visual Studio, VS Code]
• OS: [e.g. Windows, Mac]

Additional context
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[li61609]

Is there a plan to fix this issue, and when will it be completed

[li61609]

.NET

[li61609]

.NET