fix: verdict death — plan→teach seam inferred from first nodeId-tagged quiz

The Accept/Decline verdict gate is gone (owner ruling 2026-09-26):
presenting the plan ends the teacher's turn; the learner's next message
is a natural reply. Teaching begins at the first quiz call tagged with a
nodeId (probe quizzes carry none) — both folds (view phaseAt3, native
phaseAt3Lh) advance on the call itself, and the teach divider renders
before that whole assistant block. No backwards compat: verdict markers,
the verdict input event, optimistic appends, composer buttons, and
projection all deleted; prompts and docs rewritten to the natural flow.

src/core/view.ts

@@ -36,7 +36,7 @@ import type { AssistantMessage, ToolResultMessage } from "@earendil-works/pi-ai"
 import type { LhMarkerMessage, LhMessage } from "./native-messages.ts";
 import { QUESTION_TOOLS } from "./pending.ts";
 import type { SubagentArtifactData, SubagentResultMeta } from "./contracts/jobs.ts";
-import type { PlanBlockData, PlanVerdictData } from "./contracts/chat.ts";
+import type { PlanBlockData } from "./contracts/chat.ts";
 
 /** A view part — the loose part vocabulary the renderers consume (the same
  *  shape names the pre-Wave-D UIMessage dialect used, so the renderer
@@ -248,18 +248,9 @@ function applyResultTo(part: LhViewPart | undefined, result: ToolResultMessage):
 	// rendered nothing) is dropped from the view — the record keeps it.
 }
 
-/** A marker's projected message (verdict/handoff/steers) or splice (plan block). */
+/** A marker's projected message (handoff/steers) or splice (plan block). */
 function projectMarker(marker: LhMarkerMessage, out: LhViewMessage[]): void {
 	switch (marker.customType) {
-		case "verdict": {
-			const data = marker.details as PlanVerdictData;
-			out.push({
-				id: marker.id,
-				role: "user",
-				parts: [{ type: "data-verdict", id: `vd_${marker.id}`, data }],
-			});
-			return;
-		}
 		case "probe-handoff": {
 			out.push({
 				id: marker.id,