quick-fixes round: quiz-only teach-check reveal, ESC-abort confirm popup + question dismissal, confidence prompt diet

- requiresReveal gates on pending.tool === 'quiz' (owner: only graded quizzes
  arrive collapsed; ask/explain always open)
- ESC-abort chain opens AbortTurnDialog everywhere (owner ruling); from a
  pending question abort IS dismissal — dismissedAnswer rides the answer
  path, the teacher acknowledges the skip in its next turn; popup-Esc is
  claimed via the state gate (two window listeners fire per Esc)
- 25-confidence.md: stripped the slider/JSON/calibration mechanics — pure
  reading doctrine remains
- toolQuestionKind named once in core (dock parity), dock switched to it

tests/render-abort-turn-dialog.test.tsx

@@ -0,0 +1,47 @@
+/**
+ * SSR pins — abort-turn-dialog (ESC-abort guard, owner 2026-10-02):
+ * the confirm popup EVERYWHERE ruling. AbortTurnBody is the pure seam
+ * (the DeleteNodeBody pattern); the wrapper owns effects + portal.
+ */
+
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import { renderToStaticMarkup } from "react-dom/server";
+import { AbortTurnBody } from "@/components/abort-turn-dialog";
+
+describe("AbortTurnBody", () => {
+	it("turn mode: names the turn, the partial-stays promise, Abort", () => {
+		const html = renderToStaticMarkup(
+			<AbortTurnBody mode="turn" onClose={() => {}} onConfirm={() => {}} />,
+		);
+		assert.ok(html.includes('data-testid="abort-turn-dialog"'));
+		assert.match(html, /Abort this turn\?/);
+		assert.match(html, /The partial answer stays in the transcript\./);
+		assert.match(html, /Cancel/);
+		assert.match(html, /Abort/);
+	});
+
+	it("question mode: names the dismissal, the skip, Dismiss", () => {
+		const html = renderToStaticMarkup(
+			<AbortTurnBody mode="question" onClose={() => {}} onConfirm={() => {}} />,
+		);
+		assert.match(html, /Dismiss this question\?/);
+		assert.match(html, /Skipped — the teacher moves on without it\./);
+		assert.match(html, /Dismiss/);
+		// the abort copy must not leak into the dismissal mode
+		assert.ok(!html.includes("Abort this turn"));
+	});
+
+	it("the confirm action is the destructive pair, never the cancel", () => {
+		const html = renderToStaticMarkup(
+			<AbortTurnBody mode="turn" onClose={() => {}} onConfirm={() => {}} />,
+		);
+		const confirmAt = html.indexOf('data-testid="abort-turn-confirm"');
+		const cancelAt = html.indexOf('data-testid="abort-turn-cancel"');
+		assert.ok(confirmAt > -1 && cancelAt > -1);
+		const confirmBtn = html.slice(confirmAt, html.indexOf("</button>", confirmAt));
+		assert.match(confirmBtn, /destructive/);
+		const cancelBtn = html.slice(cancelAt, html.indexOf("</button>", cancelAt));
+		assert.ok(!cancelBtn.includes("destructive"));
+	});
+});