wip close round/campaign/war + refacto json None

src/warchron/model/objective.py

@@ -4,10 +4,10 @@ from uuid import uuid4
 
 
 class Objective:
-    def __init__(self, name: str, description: str):
+    def __init__(self, name: str, description: str | None):
         self.id: str = str(uuid4())
         self.name: str = name
-        self.description: str = description
+        self.description: str | None = description
 
     def set_id(self, new_id: str) -> None:
         self.id = new_id
@@ -15,18 +15,18 @@ class Objective:
     def set_name(self, new_name: str) -> None:
         self.name = new_name
 
-    def set_description(self, new_description: str) -> None:
+    def set_description(self, new_description: str | None) -> None:
         self.description = new_description
 
     def toDict(self) -> Dict[str, Any]:
         return {
             "id": self.id,
             "name": self.name,
-            "description": self.description,
+            "description": self.description or None,
         }
 
     @staticmethod
     def fromDict(data: Dict[str, Any]) -> Objective:
-        obj = Objective(data["name"], data["description"])
+        obj = Objective(data["name"], data["description"] or None)
         obj.set_id(data["id"])
         return obj