[FEAT] Add Claude 4 Sonnet & Opus via Anthropic API

[PeterDaveHello]

Model name on Google AI API:

• claude-opus-4-20250514 (Maybe claude-opus-4-latest?)
• claude-sonnet-4-20250514 (Maybe claude-sonnet-4-latest?)

Reference:

• https://x.com/AnthropicAI/status/1925591505332576377
• http://anthropic.com/news/claude-4

[PeterDaveHello]

@sunner, please help create their logos, thanks 😄

[PeterDaveHello]

The latest version model id alias doesn't work for them yet 😅

[sunner]

Here they are!