Release v3.47.2 (RooCodeInc#11239)

chore: add changeset for v3.47.2

Author: mrubens

.changeset/v3.47.2.md

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+---
+"roo-cline": patch
+---
+
+- 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)
+- Add support for .agents/skills directory (PR #11181 by @roomote)