Tracker: Sort pattern events + add validation/sanitize modes

- tracker_compiler: Sort events by time before C++ generation (required
  for runtime early-exit optimization)
- tracker.cc: Add FATAL_CHECK validating sorted events at init
- Add --check mode: Validate .track file without compiling
- Add --sanitize mode: Rewrite .track with sorted events and normalized
  formatting
- Fix parser: Skip indented comment lines in patterns

All audio tests passing.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

0 files changed, 0 insertions, 0 deletions