fix: make the home last-run cell a link that ignores mouse clicks

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

frontend/src/lib/components/home/RunnableActivityCells.svelte

@@ -9,7 +9,6 @@
 	import { ExternalLink } from 'lucide-svelte'
 	import { Button } from '$lib/components/common'
 	import { workspaceStore } from '$lib/stores'
-	import { goto } from '$lib/navigation'
 	import { getHomeActivity, type ActivityKind } from './homeActivity.svelte'
 
 	interface Props {
@@ -94,16 +93,15 @@
 		{#if lastRun}
 			<!-- The close delay lets the pointer cross into the popup to click a run. -->
 			<Tooltip class="min-w-0" closeDelay={150}>
-				<!-- Not a link for the mouse: the popover's "View runs" and run entries are the
-				     ways in. The popover's links are out of the tab order, so Enter on the focused
-				     cell stands in for "View runs". -->
-				<span
-					tabindex="0"
-					role="link"
-					class="flex items-center gap-1.5 min-w-0 text-secondary cursor-default rounded focus-visible:outline focus-visible:outline-1"
-					aria-label="Latest runs, press Enter to view all runs"
-					onkeydown={(e) => {
-						if (e.key === 'Enter') goto(`/runs/${path}?workspace=${$workspaceStore}`)
+				<!-- A mouse click does nothing: the popover's "View runs" and run entries are the
+				     ways in. Its links are out of the tab order, so the cell stays a real link for
+				     keyboard Enter and screen-reader activation, which click with `detail === 0`. -->
+				<a
+					href="{base}/runs/{path}?workspace={$workspaceStore}"
+					class="flex items-center gap-1.5 min-w-0 text-secondary hover:text-secondary cursor-default rounded"
+					aria-label="Latest runs, open all runs"
+					onclick={(e) => {
+						if (e.detail > 0) e.preventDefault()
 					}}
 				>
 					<span class={twMerge('w-1.5 h-1.5 rounded-full shrink-0', statusClass[lastRun.status])}
@@ -115,7 +113,7 @@
 							<TimeAgo date={lastRun.created_at} compact /> ago
 						{/if}
 					</span>
-				</span>
+				</a>
 				{#snippet text()}
 					<div class="flex flex-col gap-1 min-w-56">
 						<div class="flex items-center justify-between gap-4">