feat: add zenmux provider

[hsp-sz]

Context

add a new provider zenmux to kilocode

Implementation

It basically references the implementation of OpenRouter.

Screenshots

How to Test

• Select zenmux as the provider in the providers section of the settings page.
• Enter the API key.
• Select the model.
• Dialogue

Get in Touch

discord: supmax(shengzheng_31920_94037)

[changeset-bot]

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Latest commit: 5ac08b6

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[hsp-sz]

dicsussions：#4738