v1.2.0

New Features

• Output format option (-F/--format): txt (default), csv, json
  • TXT: current format, unchanged
  • CSV: comma-separated reports with headers
  • JSON: single report.json with all statistics
• Duplicate-removed coverage statistics: Coverage(rmdup) lines show unique molecule coverage
• Ratio-based coverage (--depthratio 0.2,0.5): coverage at multiples of mean depth
• All Chinese comments translated to English with richer documentation

Bug Fixes

• count.h: NULL checks for malloc/realloc in all count macros
• median_cal: out-of-bounds array access for odd-length arrays
• ucreg_tmp: memory leak in uncover region initialization (both call sites)
• isize counter: realloc now correctly updates c_isize->n
• usage(0) exits with EXIT_FAILURE (was EXIT_SUCCESS)
• Insert size median print format: %.ld changed to %PRIu64
• Division-by-zero guards for distribution loops and flank average depth

Removed

• mkdirp: bamdst no longer auto-creates output directories. The output directory must exist and be writable.
• Unused l: from getopt short option string