Merge main and switch Cesium and Navara in place through Vue

Preserve the camera, map source and layer selection across engine sessions. Restore the previous engine if startup fails and retain local history navigation.

scripts/qa-voice-routing.mjs

@@ -1023,7 +1023,7 @@ async function runDeixisBehavior(page, run, settle) {
   };
   const beginAt = (x, y, said = null) =>
     page.evaluate(
-      (px, py, text) => {
+      async (px, py, text) => {
         const voice = window.__gevVoiceCommands;
         if (text) {
           // What the session emits for a spoken turn: a new turn, then the caption.
@@ -1043,6 +1043,8 @@ async function runDeixisBehavior(page, run, settle) {
         voice.pointer.hold('keydown');
         const snapshot = voice.beginPointerTurn('keydown');
         voice.pointer.releaseHold();
+        // The voice card and the reticle render on Vue's next flush.
+        await Promise.resolve();
         const chip = document.getElementById('gev-voice-card-pointer');
         const reticle = document.querySelector('.gev-pointer-reticle');
         return {
@@ -1746,8 +1748,9 @@ async function runBehaviorLayer() {
       'behavior: analyst follow-up re-filters the remembered set',
       `count=${r?.count} followUp=${r?.coverage?.followUp}`,
     );
-    // A marine region resolves from the bundled Natural Earth pack in the page,
-    // without the slower geocode fallback.
+    // Require the bundled boundary source and the existing whole-query limit.
+    // This elapsed time includes record acquisition and filtering; the region
+    // resolver has its own separate fallback budget.
     const gulfStarted = Date.now();
     r = await run('analyst_query', {
       layers: ['flights'],
@@ -1758,9 +1761,10 @@ async function runBehaviorLayer() {
     report(
       r?.ok === true &&
         String(r?.coverage?.scope || '').includes('Gulf of Mexico') &&
+        r?.coverage?.scopeSource === 'natural-earth' &&
         gulfMs < 3000,
       'behavior: analyst resolves the Gulf of Mexico from the bundled pack',
-      `scope=${r?.coverage?.scope} ms=${gulfMs} err=${r?.error || ''}`,
+      `scope=${r?.coverage?.scope} source=${r?.coverage?.scopeSource} ms=${gulfMs} err=${r?.error || ''}`,
     );
 
     // (5) zoom_to_globe is ABSOLUTE full-earth (>12,000 km band)