Extends /gsd-progress with opt-in --forensic mode that appends a
6-check integrity audit after the standard routing report. Default
behavior is byte-for-byte unchanged — the audit only runs when
--forensic is explicitly passed.
Checks: (1) STATE vs artifact consistency, (2) orphaned handoff files,
(3) deferred scope drift, (4) memory-flagged pending work, (5) blocking
operational todos, (6) uncommitted source code. Emits CLEAN or
N INTEGRITY ISSUE(S) FOUND verdict with concrete next actions.
Closes#2189
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
