memory-statuslisted

Show Locus memory statistics using the `memory_status` MCP tool. ## What to do 1. Call the `memory_status` tool (no parameters) 2. Present the results in a clear table format: - Project root and detection method - Storage backend (node:sqlite or sql.js) - FTS5 availability - DB path and size - File counts (total, skipped) - Memory counts (semantic, episodic) - Last scan info (timestamp, strategy) - Capture level