v3.47.2

[3.47.2] - 2026-02-05

• Add support for .agents/skills directory (PR #11181 by @roomote)
• Fix: Restore Gemini thought signature round-tripping after AI SDK migration (PR #11237 by @hannesrudolph)
• Fix: Capture and round-trip thinking signature for Bedrock Claude (PR #11238 by @hannesrudolph)