USR369 asked for a conversation-level audit before starting a fresh Tech session, plus a new standing rule that every final close reviews the conversation itself. Audited: pulled list_decisions for system=30 and confirmed every decision made this conversation (D883, D885, D894 through D909) is actually logged -- nothing missing. Updated handoff-30.md with 2 items that weren't yet captured: (1) SOP-LEGACY-HYGIENE.md exists but has never been applied to a real file yet (not urgent, Tech's own LEGACY-30.md is still too short to need it), (2) the platform-wide apps-directory sweep is only done for Tech[30] -- 10 systems still to go, pointer to APPS-SWEEP-STATUS.md added. Built SOP-CLOSE-CONVERSATION-REVIEW.md: every system, every final close (CLOSE.php specifically, not JANUS), re-scans the actual conversation transcript before submitting the close -- cross-checks that everything discussed has a matching logged decision (pulled from the real decisions list, not assumed from memory) and that anything genuinely unfinished gets written into the handoff rather than silently dropped because the conversation is ending. Works alongside the two hygiene SOPs from earlier this session -- this one catches gaps before close, the other two keep the handoff/LEGACY current afterward.