'Small' update

- Add Course Mode
- Add support for downloading additional files
- Add support for `skill_fatalis` (Hikari booms your world.)

- Delete my hair X<

> WHERE IS MY TAIRITSU ?!
> Some other things are not supported now, such as... the feature which is one line above.

latest version/core/save.py

@@ -13,10 +13,11 @@ class SaveData:
         self.clearlamps_data = []
         self.clearedsongs_data = []
         self.unlocklist_data = []
-        self.installid_data = ''
-        self.devicemodelname_data = ''
+        self.installid_data: str = ''
+        self.devicemodelname_data: str = ''
         self.story_data = []
-        self.createdAt = 0
+        self.createdAt: int = 0
+        self.finalestate_data: str = "0|100|5616|85146|402821|148126|629916|492991|982851|510091|1912|942819|100606|919245|26270|781178|265839|354540|1611284|6478221|7178089|9580111|139100|2757121|1411969|2249637|3927929|26270|781178|265839|7692918|1245269|5628557|6199755|8340388|6897967|9435206|8853182|6483214|4923592|718524|8922556|7939972|1762215|877327|7939972|3229801|3217716|1642203|2487749|1624592|5357186|5362614|4202613|27003|7178029|4047038|9202383|8677179|4916716|2126424|2140654|5258529|1844588|7228940|3956629|65189|8123987|74181243|9173764|6123461|37167213|671214|171272315|1337"
 
     def to_dict(self):
         return {
@@ -45,7 +46,10 @@ class SaveData:
             "version": {
                 "val": 1
             },
-            "createdAt": self.createdAt
+            "createdAt": self.createdAt,
+            # 'finalestate': {
+            #     'val': self.finalestate_data
+            # }
         }
 
     def select_all(self, user) -> None: