Narrative Drift Monitor Watches a live narrative for drift after it has landed — the surfaces that have quietly drifted away from the narrative-registry canon over time, the competitors that have repositioned, the explicit conditions that should (and should not) trigger a repositioning of your own message, and a D1/W1/M1 message-shift retro of intended-vs-actual pull-through. It is the last move of the TALE Evaluate phase and feeds two TALE- items — a message-consistency pass is run before any flagship surface ships a major change and the cross-surface matches-the-canon check over time — plus…