Add TimeToLeave feature checklist and plan (50)

Add TimeToLeave feature checklist and plan

packages/api-client/src/client.ts

@@ -56,6 +56,23 @@ export class ApiClient {
     return res.json();
   }
 
+  async getWalkRoute(
+    fromLat: number,
+    fromLng: number,
+    toLat: number,
+    toLng: number,
+  ): Promise<BikeRoute> {
+    const url = buildUrl(this.baseUrl, "/api/walk-route", {
+      fromLat: String(fromLat),
+      fromLng: String(fromLng),
+      toLat: String(toLat),
+      toLng: String(toLng),
+    });
+    const res = await fetch(url);
+    if (!res.ok) throw new Error(`Walk route failed: ${res.status}`);
+    return res.json();
+  }
+
   async fetchCalendar(url: string, days?: number): Promise<CalendarEvent[]> {
     const params: Record<string, string> = { url };
     if (days) params.days = String(days);

packages/core/src/types.ts

@@ -49,6 +49,19 @@ export interface BikeRoute {
   steps: BikeStep[];
 }
 
+export interface WalkRoute {
+  distance: number;
+  duration: number;
+  steps: WalkStep[];
+}
+
+export interface WalkStep {
+  name: string;
+  distance: number;
+  duration: number;
+  instruction: string;
+}
+
 export interface CountdownInfo {
   label: string;
   color: string;
@@ -63,6 +76,9 @@ export type CalStatus = null | "loading" | "ok" | "error";
 export interface ReminderSettings {
   bufferMinutes: number;
   enabled: boolean;
+  arrivalBufferMinutes: number;     // arrive X minutes before event (default 5)
+  showWalkingOption: boolean;       // show walk-from-station option (default true)
+  showBikeOption: boolean;          // show bike route section (default true)
 }
 
 export type ServerStatus = boolean | null;