refactor: own application request operations and surface caches

src/data/firmsHeatmap.js

@@ -1,3 +1,4 @@
+import { defaultSurface } from './surfaceServices.js';
 import { createApplicationFirms, firmsServices } from '../app/layers/firms.js';
 import { createSourceSlot } from '../app/sourceSlot.js';
 import {
@@ -10,7 +11,9 @@ const sourceSlot = createSourceSlot(
   'Fire source',
 );
 export const configureFirmsSource = sourceSlot.configure;
-const helpers = createFirmsHelpers({ services: firmsServices });
+const helpers = createFirmsHelpers({
+  services: { ...firmsServices, anchors: defaultSurface.anchors },
+});
 export const mapAnalystRecord = helpers.mapAnalystRecord;
 export const fireCullPosition = helpers.fireCullPosition;
 export const applyHorizonCull = helpers.applyHorizonCull;
@@ -22,6 +25,7 @@ export const applyFirmsOverlayPolicy = helpers.applyFirmsOverlayPolicy;
 /** Retain the existing default feed and helper exports for direct callers. */
 export function createFirmsHeatmapLayer(options) {
   return createApplicationFirms({
+    surface: defaultSurface,
     ...options,
     feed: options.feed ?? sourceSlot.source,
   });