feat: add SiliconCloud provider

[AnotiaWang]

Related GitHub Issue

Closes: #8550

Description

This PR implements a new SiliconCloud provider based on the OpenAI compatible provider.

Key features include:

1. Select API entrypoints:

• api.siliconflow.cn (for Chinese users living in China)
• api-st.siliconflow.cn (for Chinese users not located in China. This endpoint uses Cloudflare to accelerate requests)
• api.siliconflow.com (for foreigners, billed in USD)

2. A pre-configured model list, including SOTA models that are good at coding.
3. For hybrid models, allow users to toggle reasoning and set reasoning budget tokens
4. SiliconCloud is currently implementing a context caching machanism. This dedicated provider allows future integration if SiliconCloud's caching API isn't compatible with OpenAI.

Test Procedure

Manual steps:

• Got an API key both from cloud.siliconflow.cn and cloud.siliconflow.com
• Select the related API entrypoint, configured the API key and selected a model
• Send messages to the model and see if it works

Pre-Submission Checklist

• Issue Linked: This PR is linked to an approved GitHub Issue (see "Related GitHub Issue" above).
• Scope: My changes are focused on the linked issue (one major feature/fix per PR).
• Self-Review: I have performed a thorough self-review of my code.
• Testing: New and/or updated tests have been added to cover my changes (if applicable).
• Documentation Impact: I have considered if my changes require documentation updates (see "Documentation Updates" section below).
• Contribution Guidelines: I have read and agree to the Contributor Guidelines.

Screenshots / Videos

Documentation Updates

Additional Notes

Get in Touch

Discord: anotiaw

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Important

Add SiliconCloud provider with API handling, model configuration, and UI integration.

• Behavior:
  • Adds SiliconCloudProvider to handle API requests in siliconcloud.ts.
  • Supports different API entry points based on user location.
  • Validates siliconCloudApiKey and model availability in validate.ts.
• Models:
  • Adds siliconCloudModels and siliconCloudModelsByApiLine to provider-settings.ts.
  • Supports model selection based on API line in ApiOptions.tsx.
• UI:
  • Adds SiliconCloud component to providers for API key and entry point configuration.
  • Updates i18n files for new SiliconCloud strings.
• Misc:
  • Updates providerNames and modelIdKeysByProvider to include siliconcloud in provider-settings.ts.
  • Adds validation for siliconcloud in validate.ts.

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[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some new issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.

[roomote]

I found some issues that need attention. See inline comments for concrete, minimal fixes.