CodeGraph CLI MCP Server

# CodeGraph Concurrent (`codegraph-concurrent`) ## Overview Provides concurrency primitives and structures to ensure safe, high-performance parallel processing. ## Features - **Graph Primitives**: Thread-safe graph structures for in-memory operations. - **Queues**: MPMC (Multi-Producer Multi-Consumer) and SPSC (Single-Producer Single-Consumer) channel implementations optimized for the indexing workload. - **Usage**: heavily used by `codegraph-mcp` during the parallel indexing phase.