fix(street-level): keep cones on low ground, and gekh's P3s

From gekh's review of db79027, each with a test that fails before:

- P2: image cones and the photo marker no longer disappear where the
  ground lies below the WGS84 ellipsoid (NYC -22 m, Colombo -95 m). The
  horizon cull's occluder is WGS84 shrunk by 1 km (HORIZON_CULL_DEPTH_M),
  below any real surface, so a camera near or under the ellipsoid no
  longer treats every lower point as behind the horizon; the far side of
  the Earth is still hidden from orbit (tested).
- Mesh range across the date line: the camera's longitude is taken to the
  box's side of +-180 before clamping (meshBoxInRange), so a tile just
  across the line is not measured from its far edge.
- MapillaryJS no longer tracks window resizes (trackResize: false): the
  panel's ResizeObserver resizes the viewer and skips it while hidden, so
  a window resize after closing a photo cannot ask for a tile at z=NaN.
- A key-less install sends no tile requests before the key status is
  known: coverage waits for the first status answer and the provider
  refreshes it once the status lands.
- constructCatalog takes the source method list from MAPILLARY_SOURCE_
  METHODS; sequences.js imports view.js once; the provider's unused
  re-exports are gone.

Verified: unit 5970 pass; strict fixture gate on a production build 28 ok
+ 2 "no Google 3D" skips and the panel gate 6/6 (QA_FAIL_ON_RETRY=1);
live gate with a real token 25 ok + 3 fixture-only skips.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/layers/streetLevel/viewerHost.test.mjs

@@ -365,7 +365,8 @@ function fakeLibrary() {
     positionGate: null,
   };
   class Viewer {
-    constructor() {
+    constructor(options) {
+      this.options = options;
       viewers.created++;
       viewers.live++;
       viewers.instances.push(this);
@@ -457,6 +458,15 @@ test('a prewarm that gave up when the layer went off and on mid-download is foll
   adapter.unmount();
 });
 
+test('the Mapillary viewer leaves resizing to the panel, so a hidden one never asks for z=NaN (gekh P3)', async () => {
+  const { gate, viewers } = fakeLibrary();
+  gate.resolve();
+  const adapter = createMapillaryViewer({ source: { token: 't' } });
+  await adapter.mount({});
+  assert.equal(viewers.instances[0].options.trackResize, false);
+  adapter.unmount();
+});
+
 test('closing the photo stops sequence playback in the hidden viewer (review P2-6)', async () => {
   const { gate, viewers } = fakeLibrary();
   gate.resolve();