Bug Fixes
- Fix tool call failures with RAG enabled (#65)
- System prompt was advertising vault tools (create_note, read_note, etc.) when RAG was enabled, but only fileSearch was sent in the API request, causing Gemini to hallucinate unavailable tool calls
- Fixed crash (endsWith on undefined) when create_note was called with path instead of name. Added fallback to normalize path into name and folder
- Added required argument validation to create_note, delete_note, rename_note, and search_notes handlers, returning structured errors instead of crashing