feat: add playlist

app/dashboard/music/tracks/page.tsx

@@ -20,6 +20,14 @@ import { MediaPreview } from "@/components/MediaPreview";
 import { ImagePicker } from "@/components/ImagePicker";
 import { pickUrl, SOUND_KEYS, IMAGE_KEYS } from "@/lib/media";
 
+interface Playlist {
+  id: number;
+  name?: string;
+  // Some endpoints nest the playlist's sub-categories; key casing varies.
+  subcategories?: Playlist[];
+  subCategories?: Playlist[];
+}
+
 interface Track {
   id: number;
   title?: string;
@@ -28,11 +36,12 @@ interface Track {
   type?: string;
   playlist_id?: number;
   image_id?: number | null;
-}
-
-interface Playlist {
-  id: number;
-  name?: string;
+  // A track belongs to many playlists; the /music row embeds them as an array.
+  playlists?: Playlist[];
+  // Sub-categories may also be embedded directly on the track (key casing varies).
+  subcategories?: Playlist[];
+  subCategories?: Playlist[];
+  sub_categories?: Playlist[];
 }
 
 export default function MusicTracksPage() {
@@ -56,6 +65,26 @@ export default function MusicTracksPage() {
   const [deleting, setDeleting] = useState<Track | null>(null);
   const [removing, setRemoving] = useState(false);
 
+  // A track belongs to many playlists — list their names.
+  function playlistName(r: Track): string {
+    const names = (r.playlists ?? []).map((p) => p.name).filter(Boolean);
+    return names.length ? (names as string[]).join("، ") : "—";
+  }
+
+  // Sub-categories may sit on the track directly or come through its playlists;
+  // key casing varies between endpoints, so gather from every shape.
+  function subCategoryNames(r: Track): string {
+    const subs: Playlist[] = [
+      ...(r.subcategories ?? r.subCategories ?? r.sub_categories ?? []),
+      ...(r.playlists ?? []).flatMap(
+        (p) => p.subcategories ?? p.subCategories ?? [],
+      ),
+    ];
+    const names = subs.map((s) => s.name).filter(Boolean) as string[];
+    const unique = Array.from(new Set(names));
+    return unique.length ? unique.join("، ") : "—";
+  }
+
   function resetForm() {
     setTitle("");
     setArtist("");
@@ -163,6 +192,16 @@ export default function MusicTracksPage() {
     },
     { key: "title", header: "عنوان" },
     { key: "artist", header: "هنرمند", render: (r) => r.artist ?? "—" },
+    {
+      key: "playlist",
+      header: "پلی‌لیست",
+      render: (r) => playlistName(r),
+    },
+    {
+      key: "subcategory",
+      header: "زیر‌دسته",
+      render: (r) => subCategoryNames(r),
+    },
     {
       key: "duration",
       header: "مدت زمان",