Add compact decision receipt for Ranker handoff

public/app.js

@@ -186,6 +186,30 @@ function renderHandoffStatus(handoff = {}) {
   `;
 }
 
+function renderDecisionReceipt(receipt = {}) {
+  if (!receipt.activeMove) return '';
+  const held = receipt.doNotStartYet || [];
+  return `
+    <section class="decision-receipt" aria-label="Decision receipt">
+      <div>
+        <span>Active move</span>
+        <strong>${escapeHtml(receipt.activeMove)}</strong>
+      </div>
+      <div>
+        <span>First proof step</span>
+        <p>${escapeHtml(receipt.firstProofStep || 'Run the smallest manual proof before product machinery.')}</p>
+      </div>
+      <div>
+        <span>Evidence question</span>
+        <p>${escapeHtml(receipt.evidenceQuestion || 'What would make this ranking obviously right or wrong?')}</p>
+      </div>
+      ${held.length ? `<div><span>Do not start yet</span><ul>${held.map((item) => `<li>${escapeHtml(item)}</li>`).join('')}</ul></div>` : ''}
+      ${receipt.sourceAnchor ? `<small>Source anchor: ${escapeHtml(receipt.sourceAnchor)}</small>` : ''}
+      <small>${escapeHtml(receipt.handoffRule || 'Only the Do first item is active.')}</small>
+    </section>
+  `;
+}
+
 function renderRankCard(item) {
   return `
     <article class="rank-card ${laneClass(item.lane)}">
@@ -314,6 +338,7 @@ function renderResults(data) {
       <div><span>Proof to collect</span><p>${escapeHtml(glance.evidenceQuestion || 'Name the evidence that would change the ranking.')}</p></div>
       <div><span>Trap to avoid</span><p>${escapeHtml(glance.biggestTrap || brief.caution || 'Do not treat first-pass judgement as final truth.')}</p></div>
     </section>
+    ${renderDecisionReceipt(brief.decisionReceipt || {})}
     ${renderSourceTrace(glance.sourceTrace || {})}
 
     <div class="result-actions" aria-label="Copy result actions">