Fix the follow-up review findings in import, layers, startup and engines

- KML/KMZ import: a per-file canvas budget and cache for ground overlays,
  limits on rings and vertices of raised polygons, overlays across 360° and
  near the poles, degenerate holes, polar and single-latitude fills,
  absolute overlays at their altitude, overlay order by drawOrder as on
  Cesium, and pins on tiles keep their measured height.
- Points on the surface: OSM Places and Street Level cones share the
  surface sampler and sit on the terrain before they are measured, within
  a sampling budget per pass; Cockpit's contact-dot bank keeps the dot
  atlas, and a failed fleet model loads again after a pause.
- Startup: the loading screen lifts after the share-link view is restored,
  the retry screen names the failed engine and takes focus, and the
  fallback toast stays for 6 s.
- Engines: an engine switch lands a running camera flight at its
  destination (camera.completeFlight on both engines), the sighting card
  leaves focus on the engine picker after a switch, and a Cesium model
  error stays with the instance that failed.
- The MCP panel builds again: its wind-mesh alias resolves to the stub.
- QA: the wildlife switch waits for the camera to rest, GBFS --w2 says it
  needs the dev server, and test fixtures are shared instead of copied.

scripts/qa-gbfs-names.mjs

@@ -2,6 +2,7 @@
 /**
  * Keyless station-name regression against the real globe and bike-share tool.
  * Run with a dev or QA preview server and an explicitly assigned --url.
+ * --w2 adds raster checks that import source modules: dev server only.
  * GBFS documents are synthetic; no operator feed or provider key is required.
  */
 import assert from 'node:assert/strict';
@@ -138,6 +139,13 @@ async function open(mode = 'normal') {
     { information, status, mode },
   );
   await page.goto(appUrl, { waitUntil: 'domcontentloaded' });
+  if (
+    extended &&
+    !(await page.evaluate(() =>
+      Boolean(document.querySelector('script[src="/@vite/client"]')),
+    ))
+  )
+    throw new Error('--w2 requires a Vite dev server; omit --w2 for preview');
   await page.waitForFunction(
     () =>
       window.__godsEyeView?.dataManager && window.__godsEyeView?.voiceCommands,