## 变更内容
- 修复了 Bedrock 和 Vertex 上网关用户的测试版标头验证错误，确保设置 `CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1` 可避免该错误
## What's changed
- Fixed beta header validation error for gateway users on Bedrock and Vertex, ensuring `CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1` avoids the error