Add Claude Opus 4.6 model

[R44VC0RP]

Summary

• Adds Claude Opus 4.6 across all three Anthropic-serving providers: Anthropic (native API), Amazon Bedrock (4 region variants), and Google Vertex AI
• 7 new TOML config files total: 2 Anthropic (dated + latest alias), 4 Bedrock (default/US/EU/global), 1 Vertex AI

Model Details

Feature	Value
Pricing	$5/MTok input, $25/MTok output
Context window	200K tokens
Max output	128K tokens
Knowledge cutoff	May 2025
Extended thinking	Yes
Modalities	text, image, pdf input; text output

Validation (bun validate) and web build both pass.

[thebongy]

Hi! I don't believe the claude-opus-4-6-20260205 alias has been announced by anthropic yet, their docs only document claude-opus-4-6 on the anthropic provider. Was this possibly added by mistake?

[R44VC0RP]

good catch @thebongy, that was a misinput on my end