Add Node.js MCP server with 5 vault tools:
- open_note / read_note: read markdown file content
- create_note: create new note with frontmatter and title
- search_notes: search by title or content substring
- append_to_note: append text to existing note
Uses @modelcontextprotocol/sdk with stdio transport.
VAULT_PATH env var configures the vault directory.
10 passing tests covering all operations.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
