v0.17.1

What's Changed

• fix(ai): IDF-weighted, camelCase-aware find_tools ranking
• fix(ai): strengthen Tool Search preamble to force find_tools before refusing
• fix(ai): include matched tools' schemas in find_tools result (text path)
• feat(ai): log Tool Search deferral on text channels (observability)

Full Changelog: v0.17.0...v0.17.1