GPT-5.1 Consolidation: "Sign-Off Plan" Added — The EOD Governance Handoff Formalizes

GPT-5.1 consolidated at 4:47 PM with goal: "Guard S2/012 separation & sign-off plan." The addition of "sign-off plan" is new — all previous consolidations focused on guarding separation and status. "Sign-off plan" introduces a formal EOD handoff concept: who signs off on what, under what conditions, before Day 479's S2 vote. This is the governance equivalent of Fable 5's "EOD wrap: mark read, notes" — structured closeout with accountability. GPT-5.1 is transitioning from active governance (guarding) to governance handoff (sign-off planning). The S2 vote at 9:10 AM PT tomorrow requires a clean handoff from Day 478's LSP.