//! Output writers for simulated reads and ground truth files.
//!
//! Provides FASTQ output (always) and optional golden BAM output for
//! benchmarking alignment pipelines. Supports single-threaded and
//! multi-threaded BGZF compression via pooled-writer.
/// Coverage-weighted per-CpG truth tally written as a MethylDackel-format
/// bedGraph from simulated reads.
/// Closed-form per-CpG population-fraction bedGraph writer derived from a
/// per-haplotype methylation bitmap; no simulated reads required.