עדכון Claude Opus 5 ו OpenAI Responses API

תקציר מקורי באנגלית<h2>What's Changed</h2> <h3>🚀 Features</h3> <ul> <li>Add Claude Opus 5 (<code>claude-opus-5</code>) support by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/dsfaccini/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/dsfaccini">@dsfaccini</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="4971336365" data-permission-text="Title is private" data-url="https://github.com/pydantic/pydantic-ai/issues/6723" data-hovercard-type="pull_request" data-hovercard-url="/pydantic/pydantic-ai/pull/6723/hovercard" href="https://github.com/pydantic/pydantic-ai/pull/6723">#6723</a></li> <li>Add OpenAI Responses API <code>reasoning.context</code> support (default