Refactor journey-draw and journey-model modules to simplify type definitions by removing unnecessary exports. Update mapping logic in journey-draw to enhance clarity and maintainability.

Author: ndelangen

src/modules/journey-draw.ts

@@ -2,7 +2,7 @@
  * Journey SVG rendering (#journeys): delegates geometry/style to sibling modules.
  */
 import type { Selection } from "d3";
-import type { JourneyResolvedStopEntry, PackJourney } from "./journey-model";
+import type { PackJourney } from "./journey-model";
 import {
   buildJourneyResolutionContext,
   ensurePackJourneyNormalized,
@@ -146,7 +146,7 @@ export class JourneyDrawModule {
       this.lastLodTier = null;
       return;
     }
-    const points = resolvedStops.map((r: JourneyResolvedStopEntry) => r.coord);
+    const points = resolvedStops.map((r) => r.coord);
 
     const zs = zoomScale;
     const zm = zoomMinForLod;

src/modules/journey-model.ts

@@ -3,12 +3,12 @@
  */
 
 /** One leg in the journey sequence (linked-list style via array order). */
-export interface JourneyBurgLeg {
+interface JourneyBurgLeg {
   kind: "burg";
   id: number;
 }
 
-export interface JourneyMarkerLeg {
+interface JourneyMarkerLeg {
   kind: "marker";
   id: number;
 }
@@ -210,7 +210,7 @@ export function resolveJourneyStopPosition(
 }
 
 /** One resolved leg and its map coordinate (same order as `journeyResolvedCoordinates` points). */
-export interface JourneyResolvedStopEntry {
+interface JourneyResolvedStopEntry {
   leg: JourneyStopLeg;
   coord: [number, number];
 }