Extend IMapMarker with zoomLevel, countryType, highlighted fields

src/features/flights-map/types.ts

@@ -72,6 +72,15 @@ export type MarkerStyle = "blue" | "blue-small" | "orange";
 
 /**
  * A marker to render on the map.
+ *
+ * When `zoomLevel` and `countryType` are both set, MapCanvas places the
+ * marker into the categorized-rendering flow (10 LayerGroups keyed by
+ * countryType × zoomLevel). Otherwise the marker renders via the legacy
+ * flat-layer flow.
+ *
+ * When `highlighted` is true, the marker is forced into the always-on
+ * highlight layer with an orange icon regardless of `style` and
+ * `zoomLevel`.
  */
 export interface IMapMarker {
   id: string;
@@ -80,6 +89,9 @@ export interface IMapMarker {
   style: MarkerStyle;
   label?: string | undefined;
   tooltipPermanent?: boolean | undefined;
+  zoomLevel?: number | undefined;
+  countryType?: "ru" | "other" | undefined;
+  highlighted?: boolean | undefined;
 }
 
 /**