CodeGraph CLI MCP Server

# codegraph-parser High-performance source parsing for CodeGraph using Tree-sitter. ## Performance I/O Enhancements This crate includes optional, Linux-optimized async I/O paths and improved scheduling: - io_uring (optional feature `io-uring`, Linux-only): - Uses `tokio-uring` for small file reads to reduce syscall overhead and improve batched throughput. - Zero-copy mapping for large files: - Uses `memmap2` to map large files and convert to text, reducing explicit read syscalls. - Async batching and scheduling: - Directory traversal via `ignore` crate (honors .gitignore) in a fast parallel walker. - Size-aware scheduling to parse larger files first and reduce tail latency. ### Enabling io_uring ``` cargo build -p codegraph-parser --features io-uring --target x86_64-unknown-linux-gnu ``` Note: io_uring requires a Linux kernel with io_uring support. When disabled or unavailable, the reader falls back to standard Tokio async file I/O. ### Notes - The parser maintains compatibility with existing APIs and caches. No API surface changes are required to adopt the new I/O paths. - The file read strategy is selected automatically based on platform and file size.