feat: add initial model

src/app.d.ts

@@ -1,13 +1,16 @@
+import type { WorkoutEntry } from "$lib/types";
 // See https://svelte.dev/docs/kit/types#app.d.ts
 // for information about these interfaces
 declare global {
 	namespace App {
 		// interface Error {}
 		// interface Locals {}
-		// interface PageData {}
+		interface PageData {
+			workouts?: WorkoutEntry[];
+		}
 		// interface PageState {}
 		// interface Platform {}
 	}
 }
 
-export {};
+export { };

src/lib/storage.ts

@@ -0,0 +1,10 @@
+import type { WorkoutEntry } from '$lib/types';
+
+export function getWorkouts(): WorkoutEntry[] {
+	if (typeof localStorage === 'undefined') return [];
+	return JSON.parse(localStorage.getItem('workouts') || '[]');
+}
+
+export function saveWorkouts(workouts: WorkoutEntry[]) {
+	localStorage.setItem('workouts', JSON.stringify(workouts));
+}

src/lib/types/index.d.ts

@@ -0,0 +1,7 @@
+
+
+export interface WorkoutEntry {
+	date: string;
+	workout_type: string;
+	duration_hours: number;
+}