feat(deck): show due card count on deck list page

Display a badge with the number of cards due for study today next to
each deck name on the home page. The count is fetched along with deck
data from the API to minimize additional network requests.

1 files changed, 15 insertions, 8 deletions

diff --git a/src/client/pages/HomePage.tsx b/src/client/pages/HomePage.tsx
index e0e9e9e..ad6ece4 100644
--- a/src/client/pages/HomePage.tsx
+++ b/src/client/pages/HomePage.tsx
@@ -57,14 +57,21 @@ function DeckList({
 				>
 					<div className="flex items-start justify-between gap-4">
 						<div className="flex-1 min-w-0">
-							<Link
-								href={`/decks/${deck.id}`}
-								className="block group-hover:text-primary transition-colors"
-							>
-								<h3 className="font-display text-lg font-medium text-slate truncate">
-									{deck.name}
-								</h3>
-							</Link>
+							<div className="flex items-center gap-3">
+								<Link
+									href={`/decks/${deck.id}`}
+									className="block group-hover:text-primary transition-colors flex-1 min-w-0"
+								>
+									<h3 className="font-display text-lg font-medium text-slate truncate">
+										{deck.name}
+									</h3>
+								</Link>
+								{deck.dueCardCount > 0 && (
+									<span className="shrink-0 inline-flex items-center justify-center min-w-[1.5rem] h-6 px-2 bg-primary text-white text-sm font-medium rounded-full">
+										{deck.dueCardCount}
+									</span>
+								)}
+							</div>
 							{deck.description && (
 								<p className="text-muted text-sm mt-1 line-clamp-2">
 									{deck.description}