🔶 add Playlist serializer

server/app/serializer.py

@@ -0,0 +1,20 @@
+from dataclasses import dataclass
+from app import models
+
+
+@dataclass
+class Playlist:
+    playlistid: str
+    name: str
+    image: str
+    lastUpdated: int
+    description: str
+    count: int = 0
+
+    def __init__(self, p: models.Playlist) -> None:
+        self.playlistid = p.playlistid
+        self.name = p.name
+        self.image = p.image
+        self.lastUpdated = p.lastUpdated
+        self.description = p.description
+        self.count = p.count