Project structure and classes

Project structure and classes created and initialized

core/user.py

@@ -0,0 +1,14 @@
+class User:
+    def __init__(self, id, name) -> None:
+        self.id = id
+        self.name = name
+        self.debt = 0.0
+
+    def to_json(self):
+        return {"id": self.id, "name": self.name, "debt": self.debt}
+
+    @staticmethod
+    def from_json(data):
+        user = User(data["id"], data["name"])
+        user.debt = data["debt"]
+        return user