langchain-core גרסה 1.5.0

תקציר מקורי באנגלית<p>Changes since langchain-core==1.4.9</p> <p>release(core): 1.5.0 (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="4932828736" data-permission-text="Title is private" data-url="https://github.com/langchain-ai/langchain/issues/38978" data-hovercard-type="pull_request" data-hovercard-url="/langchain-ai/langchain/pull/38978/hovercard" href="https://github.com/langchain-ai/langchain/pull/38978">#38978</a>)<br> feat(core): add <code>reasoning_effort</code> as a standard chat model parameter (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="4904720288" data-permission-text="Title is private" data-url="https://github.com/langchain-ai/langchain/issues/38887" data-hovercard-type="pull_request" data-hovercard-url="/langchain-ai/