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/speech.test.mjs

@@ -367,10 +367,34 @@ test('annotation speech names only what failed and never announces drawing', ()
   assert.deepEqual(pending.display.notes, ['Tracing outlines']);
 });
 
-test('builders never break an action and analyst_query has no default builder', () => {
-  assert.equal(SPEECH_BUILDERS.analyst_query, undefined);
+test('analyst speech preserves exact counts, lower bounds and partial status', () => {
+  const raw = {
+    ok: true,
+    action: 'analyst_query',
+    count: 3,
+    complete: true,
+    scopeLabel: 'anywhere in the loaded data',
+    coverage: { layersQueried: [{ layerKey: 'flights' }] },
+  };
+  assert.equal(
+    attachVoiceResult('analyst_query', raw).say,
+    '3 aircraft anywhere in the loaded data.',
+  );
+  assert.equal(
+    attachVoiceResult('analyst_query', {
+      ...raw,
+      count: 250_000,
+      complete: false,
+      partial: true,
+      unanswered: ['military'],
+    }).say,
+    'At least 250,000 aircraft anywhere in the loaded data. Partial; military not answered.',
+  );
+});
+
+test('builders never break an action and callers can override analyst speech', () => {
+  assert.equal(typeof SPEECH_BUILDERS.analyst_query, 'function');
   const raw = { ok: true, action: 'analyst_query', count: 3 };
-  assert.equal(attachVoiceResult('analyst_query', raw), raw);
   const hooked = attachVoiceResult(
     'analyst_query',
     raw,