Task 6.3: the contention and extra replays run with tracing off, all
jobs at summary and full level, and a job subset, in step and continue
mode; decisions, full pend reasons, --sim-output recordings, snapshots,
--sim-verify results and per-step accounting dumps are identical.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Task 6.1: drives the real simulator REPL with tracing on for all and
selected jobs at both levels, asserting every Requirement 2-6 section,
ordering in step and continue mode and at breakpoints, info trace at a
breakpoint, after finish, for arrays and after a units change, and a
byte-identical trace file copy.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
