fix: de-duplicate the continue-listening row

ABS returns items-in-progress once per in-progress podcast episode (same item id),
which rendered duplicate cards. Collapse to one card per library item.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/pages/Home.tsx

@@ -13,6 +13,16 @@ interface RecentState {
   loading: boolean
 }
 
+/**
+ * Collapse to one card per library item. ABS returns items-in-progress once per
+ * in-progress podcast episode (same title/cover), which looks like duplicates; keep
+ * only the first (most recent) occurrence of each id.
+ */
+function dedupeById(items: LibraryItem[]): LibraryItem[] {
+  const seen = new Set<string>()
+  return items.filter((i) => (seen.has(i.id) ? false : (seen.add(i.id), true)))
+}
+
 export default function Home() {
   const libraries = useLibraryStore((s) => s.libraries)
   const librariesLoaded = useLibraryStore((s) => s.loaded)
@@ -25,7 +35,7 @@ export default function Home() {
     let cancelled = false
     setContinueLoading(true)
     getItemsInProgress(20)
-      .then((items) => !cancelled && setContinueItems(items))
+      .then((items) => !cancelled && setContinueItems(dedupeById(items)))
       .catch(() => !cancelled && setContinueItems([]))
       .finally(() => !cancelled && setContinueLoading(false))
     return () => {