fix(voice): preserve analyst result and tracking contracts

keep contacts counts, rows, scope and provenance on one retained snapshot

report capped cohorts as lower bounds

separate sibling tool cancellation from newer user turns

align track_entity validation across runtime and benchmark paths

src/voice/resultDisplay.js

@@ -34,26 +34,42 @@ function notesOf(...values) {
     .filter(Boolean);
 }
 
-function nounFor(layerKeys) {
+export function analystNounFor(layerKeys) {
   const keys = [...new Set(layerKeys.filter(Boolean))];
   if (keys.length !== 1) return 'results';
   const key = keys[0];
   return LAYER_NOUNS[key] || voiceLayer(key)?.aliases?.[0] || 'results';
 }
 
-function analystCard(result) {
-  if (!result?.ok) return null;
-  const keys = (result.coverage?.layersQueried || []).map(
+/** The count/scope headline shared by the analyst card and spoken answer. */
+const ANALYST_HEADLINE_MAX = 64;
+
+function boundedHeadline(value) {
+  const text = String(value || '')
+    .replace(/\s+/g, ' ')
+    .trim();
+  if (text.length <= ANALYST_HEADLINE_MAX) return text;
+  return `${text.slice(0, ANALYST_HEADLINE_MAX - 1).trimEnd()}…`;
+}
+
+export function analystHeadline(result) {
+  const keys = (result?.coverage?.layersQueried || []).map(
     (layer) => layer.layerKey,
   );
-  const count = Number(result.count) || 0;
-  const floor = result.complete === false ? 'At least ' : '';
+  const count = Number(result?.count) || 0;
+  const floor = result?.complete === false ? 'At least ' : '';
+  return boundedHeadline(
+    `${floor}${count.toLocaleString('en-US')} ${analystNounFor(keys)} ${result?.scopeLabel || ''}`,
+  );
+}
+
+function analystCard(result) {
+  if (!result?.ok) return null;
   const display = result.display || {};
   const unanswered = Array.isArray(result.unanswered) ? result.unanswered : [];
   return {
     display: {
-      title:
-        `${floor}${count.toLocaleString('en-US')} ${nounFor(keys)} ${result.scopeLabel || ''}`.trim(),
+      title: analystHeadline(result),
       // The precise scope, unless the title already says exactly that.
       lines: [
         display.scope !== result.scopeLabel ? display.scope : null,