exclude lift-assisted ski types from ascent totals

src/routes/activities/+page.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import ActivityItem from '$lib/components/ActivityItem.svelte';
 	import StatTile from '$lib/components/StatTile.svelte';
+	import { countsTowardAscent } from '$lib/activity-rules';
 	import { fmtDistance, fmtDuration, fmtElevation } from '$lib/format';
 
 	let { data } = $props();
@@ -19,7 +20,10 @@
 	const shown = $derived({
 		count: filtered.length,
 		distance_m: filtered.reduce((sum, a) => sum + a.distance_m, 0),
-		elev_gain_m: filtered.reduce((sum, a) => sum + a.elev_gain_m, 0),
+		elev_gain_m: filtered.reduce(
+			(sum, a) => sum + (countsTowardAscent(a.type) ? a.elev_gain_m : 0),
+			0
+		),
 		moving_s: filtered.reduce((sum, a) => sum + (a.moving_s ?? a.duration_s ?? 0), 0)
 	});
 	const suffix = $derived(selectedYear === null ? '' : ` (${selectedYear})`);