//! Low-level foundation utilities.
//!
//! This module contains fundamental utilities used throughout the codebase:
//! - `consts`: JPEG markers, zigzag tables, quantization matrices
//! - `alloc`: Safe allocation helpers for DoS protection
//! - `bitstream`: Low-level bit I/O operations
//! - `instrumented_vec`: Vec wrapper for allocation profiling (feature-gated)
// Re-export commonly used items at module level