עדכון 1.15.7a1: תיקוני באגים ושיפורים

תקציר מקורי באנגלית<h2>What's Changed</h2> <h3>Bug Fixes</h3> <ul> <li>Fix registry skills resolution through the runtime's CrewAI+ client.</li> <li>Recover from the GPT-5.6 tools and reasoning_effort 400 errors.</li> <li>Make tool calling work on the Responses API path.</li> <li>Route responses-only models to prevent 404 errors.</li> <li>Bump bedrock-agentcore dependency to patch <a title="CVE-2026-16796" data-hovercard-type="advisory" data-hovercard-url="/advisories/GHSA-j6g5-3hh3-pgw8/hovercard" href="https://github.com/advisories/GHSA-j6g5-3hh3-pgw8">CVE-2026-16796</a>.</li> </ul> <h3>Observability</h3> <ul> <li>Emit skill usage events at runtime for improved observability.</li> </ul> <h3>Documentation</h3> <ul> <li>Snapshot and changelog updates for version 1.15.6.</li> </ul> <h2>Contributors</h2> <p><a