Update backend API schema

app/composeables/api/models/playlistTrackResponse.ts

@@ -0,0 +1,15 @@
+/**
+ * Generated by orval v7.16.0 🍺
+ * Do not edit manually.
+ * OpenAPI definition
+ * OpenAPI spec version: v0
+ */
+
+export interface PlaylistTrackResponse {
+  trackId?: number;
+  title?: string;
+  artist?: string;
+  audioPath?: string;
+  durationSeconds?: number;
+  fileName?: string;
+}