v0.6.0

Changelog (v0.5.0...v0.6.0)

• feature #1644 Add support for prompt caching (@fabpot)
• feature #1683 Make JSON schema generation extensible (v2) (@valtzu)
• bug #1714  Fix FallbackModelCatalog (@fabpot)
• feature #1701 Add bridge (@chr-hertel)
• bug #1694 Fix on ElevenLabs platform (@Guikingone)
• feature #1719 Replace Chat Completions client with Responses API client (@paulkothmair)
• feature #1717 Resolve models.dev JSON from symfony/models-dev Composer package (@fabpot)
• bug #1711 Throw InvalidArgumentException when ModelClient receives a string payload (@fabpot)
• bug #1712 Skip specialized bridge check when a custom baseUrl is provided (@fabpot)
• bug #1703 Improve Elevenlabs error handling (@chr-hertel)
• feature #1661 Support API key authentication with global endpoint (@botjaeger)
• bug #1690 Fix OpenAI tool call serialization (@fabpot)
• feature #1689 Add well-known base URLs for providers with dedicated npm packages (@fabpot)
• bug #1698 fix typo in model name (no 's') (@tacman)
• bug #1691 Fix scientific notation strings being cast to int instead of float in model option parsing (@fabpot)
• feature #1556 Support structured output for ClaudeModelClient (@aszenz)
• feature #1678 Add support for gemini-3.1-pro-preview (@alex-ception)
• bug #1670 Fix AssistantMessageNormalizer producing null content for Anthropic API (@fabpot)