[Feature Request] Support for Claude API via Bedrock and Proxy Configuration

[FamousMai]

Feature Request

I notice that Eino currently supports OpenAI and Azure OpenAI integration. I would like to request the following features:

1. Claude API Integration via Amazon Bedrock

   • Support for Claude API calls through Amazon Bedrock integration
   • Similar to the existing OpenAI/Azure implementation pattern

2. Proxy Configuration for Claude API

   • Add proxy configuration support for Claude API calls
   • This is particularly important as Claude API access can be unstable in certain regions
   • Would help improve reliability and accessibility for users in different geographical locations

Benefits

• Expanded LLM provider options for users
• Better accessibility in regions with connection issues
• Consistent integration pattern across different LLM providers

Use Case

This would be particularly beneficial for users who:

• Want to use Claude's capabilities through Amazon Bedrock
• Need stable API access in regions with connectivity challenges
• Are looking to implement multi-model solutions

Would greatly appreciate if these features could be considered for future development.

[shentongmartin]

We have a Claude ChatModel implementation at https://github.com/cloudwego/eino-ext/blob/main/components/model/claude/claude.go.

[FamousMai]

#76