✗ HARD-BROKEN BUILD — fix this first; the rest of the log is unreliable.
  signal: extension-error
    Extension error:
    Could not import extension myst_parser (exception: No module named 'markdown_it')
  The warning list below is incomplete until this is fixed.

Build: state=Finished  success=False  exit=2

Partial findings (warning pass did not complete) (0):
  (none)

Unclassified (0) — no rule matched; resolve with the user, then file a skill-improvement ticket to add a rule:

Suppressed (0) — known-benign, not actionable:

Next: fix the hard-broken build above, then rebuild and re-run.
