fix: remove non-existent Claude Sonnet 4.7 & 4.8 models

[hetaoBackend]

Summary

Remove the non-existent claude-sonnet-4-7 and claude-sonnet-4-8 model IDs from the Anthropic provider registry.

The Sonnet model line does not have 4.7 or 4.8 versions — its latest release is Sonnet 4.6 (claude-sonnet-4-6). Only the Opus line has 4.7/4.8 (claude-opus-4-7, claude-opus-4-8), and those remain in the list. The two removed entries pointed to models that do not exist and would fail at request time.

Changes

internal/llm/providers.go — drop claude-sonnet-4-8 and claude-sonnet-4-7 from the Anthropic provider's Models list.

🤖 Generated with Claude Code

[CLAassistant]

All committers have signed the CLA.

[github-actions]

✅ OpenCodeReview: No comments generated. Looks good to me.

[hetaoBackend]

Hi @lizhengfeng101, could you please take a look at this PR when you have a chance? 🙏

It's a small one-line-effective fix removing two non-existent model IDs (claude-sonnet-4-7, claude-sonnet-4-8) from the Anthropic provider registry — the Sonnet line has no 4.7/4.8 versions (latest is Sonnet 4.6); only the Opus line does, and those are kept. Thanks!

[lizhengfeng101]

Thanks for catching this @hetaoBackend! You're absolutely right — Sonnet doesn't have 4.7/4.8 versions.

We'll get this merged and included in the next release shortly.