test(ceo-mode-routing): submit a mode review that scrolled past the viewport

Run 36606688266 bundled routing, learnings and the mode choice into one
native call. Its review panel was taller than the terminal, so the tab
bar scrolled off, ceoModeSubmissionInput returned null for 240 s and HOLD
SCOPE was never submitted ('no posture match'). With no bar on screen the
viewport must still end at the focused Submit prompt, and the accumulated
screen text supplies the one complete panel, authenticated exactly as
before. Replay controls reject another mode, an unoffered answer, an
altered question, a quoted panel, trailing output, a moved cursor and an
answered or changed call.

test/helpers/ceo-mode-option.ts

@@ -149,7 +149,7 @@ function hasNativePostureProse(text: string, posture: RegExp): boolean {
 /** Finish the selected native mode packet before waiting for its answer. */
 export function ceoModeSubmissionInput(
   visible: string, selected: NativePlanQuestionCall | undefined, targetMode: CeoMode,
-  transcript: PlanCountTranscript, submitted: Set<string>,
+  transcript: PlanCountTranscript, submitted: Set<string>, screenText = '',
 ): string | null {
   if (!selected || selected.answered || selected.failed || !selected.sessionId || !selected.toolUseId ||
       transcript.status !== 'ready' || selected.questions.length < 2 ||
@@ -161,16 +161,28 @@ export function ceoModeSubmissionInput(
   const modeQuestions = selected.questions.filter(q => q.options.filter(o => modeTitle(o.label)).length >= 2);
   if (modeQuestions.length !== 1 || findCeoModeOption(modeQuestions[0]!.options.map((o, i) =>
       ({index:i + 1, label:o.label})), targetMode) === null) return null;
-  const bar = posturePacketBar(visible);
-  if (!bar || !bar.answered.every(Boolean) || JSON.stringify(bar.headers) !== JSON.stringify(
-      selected.questions.map(q => q.header.trim().replace(/\s+/g, ' '))) ||
-      planCountSubmissionInput(visible) !== '\r') return null;
-  const rawBar = [...visible.matchAll(/←[^\r\n]+✔\s*Submit\s*→/g)].at(-1)!;
-  const preceding = visible.slice(0, rawBar.index);
-  if (/```|~~~|^\s*>|\b(?:example|quoted|source)[^:\n]*:\s*$/im.test(preceding)) return null;
   const compact = (text: string) => text.replace(/\s+/g, '');
-  const panel = compact(visible.slice(rawBar.index! + rawBar[0].length)
-    .replace(/^[ \t]*[│┃] ?/gm, '').replace(/^[ \t]*[●⏺] ?/gm, ''));
+  const quotedContext = /```|~~~|^\s*>|\b(?:example|quoted|source)[^:\n]*:\s*$/im;
+  const bar = posturePacketBar(visible);
+  let review: string;
+  if (bar) {
+    if (!bar.answered.every(Boolean) || JSON.stringify(bar.headers) !== JSON.stringify(
+        selected.questions.map(q => q.header.trim().replace(/\s+/g, ' '))) ||
+        planCountSubmissionInput(visible) !== '\r') return null;
+    const rawBar = [...visible.matchAll(/←[^\r\n]+✔\s*Submit\s*→/g)].at(-1)!;
+    if (quotedContext.test(visible.slice(0, rawBar.index))) return null;
+    review = visible.slice(rawBar.index! + rawBar[0].length);
+  } else {
+    // A review taller than the terminal scrolls its tab bar and heading off
+    // the viewport (run 36606688266). The viewport must still end at the
+    // focused Submit prompt; the accumulated screen text then supplies the
+    // one complete review panel, authenticated below exactly as with a bar.
+    const heading = screenText.lastIndexOf('Review your answers');
+    if (heading < 0 || !compact(visible).endsWith(BARLESS_SUBMIT_END) ||
+        quotedContext.test(screenText.slice(0, heading).split('\n').slice(-3).join('\n'))) return null;
+    review = screenText.slice(heading);
+  }
+  const panel = compact(review.replace(/^[ \t]*[│┃] ?/gm, '').replace(/^[ \t]*[●⏺] ?/gm, ''));
   // Authenticate the complete review panel against native questions and
   // offered answers. An intended keypress or a selected-mode echo is not an ACK.
   let prefixes = ['Reviewyouranswers'];