v1.4.456

Changes

Direct commits

• Chore: cleanups - tidying the duplicate model listed

• Feat: add Claude Sonnet 5 Anthropic support

• Add Claude Sonnet 5 to supported Anthropic models

• Omit sampling parameters for Claude Sonnet 5 requests

• Centralize Anthropic sampling restrictions behind prefix matching

• Enable one-million-token context beta for Claude 5 models

• Remove older Claude 4 aliases from model listings

• Update Anthropic tests for Sonnet 5 beta mapping

• Refresh Go dependencies across AI provider integrations