feat(workspaces): open workspace in a new browser tab

The 'Open' button on a workspace card did client-side navigation
(onNavigate -> pushState), opening the workspace in the SAME tab.
Replace the JS click handler with a native anchor using target="_blank"
(+ rel=noopener noreferrer) so clicking Open opens the workspace in a
NEW browser tab. The new tab does a full load and routes to /<id> via
the existing parsePath -> App wiring.

The card no longer needs the onNavigate prop (its only navigation was
the Open button), so drop it from WorkspaceCard + WorkspacesHome and
update the card tests to assert the new-tab link attributes instead of
the onNavigate call.

1 files changed, 2 insertions, 10 deletions

diff --git a/src/features/workspaces/ui/WorkspaceCard.svelte b/src/features/workspaces/ui/WorkspaceCard.svelte
index 6348bb9..81d6fe3 100644
--- a/src/features/workspaces/ui/WorkspaceCard.svelte
+++ b/src/features/workspaces/ui/WorkspaceCard.svelte
@@ -8,11 +8,9 @@
 	let {
 		ws,
 		store,
-		onNavigate,
 	}: {
 		ws: WorkspaceEntry;
 		store: WorkspaceStore;
-		onNavigate: (path: string) => void;
 	} = $props();
 
 	// ── Title: double-click to rename inline ──────────────────────────────────
@@ -79,10 +77,6 @@
 		await store.remove(ws.id);
 		deleting = false;
 	}
-
-	function open(): void {
-		onNavigate(workspacePath(ws.id));
-	}
 </script>
 
 <li class="flex flex-col gap-2 rounded-box border border-primary bg-primary/10 p-3">
@@ -163,10 +157,8 @@
 		<a
 			class="btn"
 			href={workspacePath(ws.id)}
-			onclick={(e) => {
-				e.preventDefault();
-				open();
-			}}
+			target="_blank"
+			rel="noopener noreferrer"
 		>
 			Open
 		</a>