fix(gnss): address review - reference source wiring, honest method, 429 backoff, QA render proof

- Route the adsb.lol GNSS source through createReferenceSources and the
  constructCatalog contract; app layer module is a thin pass-through.
- Describe the method honestly: gpsjam.org's published cell formula and
  bands; per-aircraft thresholds are the 14 CFR 91.227(c) ADS-B Out minima
  (NIC < 7, NACp < 8) plus readsb gpsOkBefore.
- Proxy: reuse the adsb.lol anchor parser, honour upstream Retry-After
  (clamped 5-120 s), serve stale during cooldown, cap the body size.
- Layer: redraw only when a cell id or band changes, treat a settling
  camera as a retry rather than a rejected enable, keep low cells visible,
  skip rows without finite coordinates, state the 3-aircraft rule in the
  legend blurb.
- Voice: gnss-interference in set_layer_visibility / show_data_layers_menu
  plus common aliases; voice pins re-derived.
- qa-gnss: stub the route in-page (request interception stalls Cesium's
  geometry workers), assert every cell is built, cover all bands over land
  and sea, screenshot every state with the Data Layers row open.

Hex project - Crew Leo Agile dev team.

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

src/app/layers/gnss.js

@@ -1,12 +1,6 @@
-import {
-  createAdsbGnssSource,
-  createGnssInterferenceLayer,
-} from '../../layers/gnss/index.js';
+import { createGnssInterferenceLayer } from '../../layers/gnss/index.js';
 
 /** Wire the adsb.lol GNSS interference layer into the application catalog. */
-export function createApplicationGnssInterference(options = {}) {
-  return createGnssInterferenceLayer({
-    source: createAdsbGnssSource(),
-    ...options,
-  });
+export function createApplicationGnssInterference(options) {
+  return createGnssInterferenceLayer(options);
 }