Refactor code structure; improve organization and readability across multiple files

models/rooms.py

@@ -31,4 +31,12 @@ class Room(db.Model):
         name = self.name or ""
         func = self.room_function.description if self.room_function else ""
         return f"{name} - {func}".strip(" -")
+    
+    def serialize(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'area_id': self.area_id,
+            'function_id': self.function_id
+        }