[Enhance][Bug fix] API for custom banner

- For Arcaea 6.8.2
- Add support for "skill_vita_arc".
- Now `/users/<user_id> PUT` API endpoint can change the user's custom banner. #223
- Fix a bug that the playing result of beyond world map shows zero value at partner multiply term.

latest version/core/world.py

@@ -519,6 +519,7 @@ class WorldSkillMixin:
             'skill_salt': self._skill_salt,
             'skill_hikari_selene': self._skill_hikari_selene,
             'skill_nami_sui': self._skill_nami_sui,
+            'skill_vita_arc': self._skill_vita_arc,
         }
         if self.user_play.beyond_gauge == 0 and self.character_used.character_id == 35 and self.character_used.skill_id_displayed:
             self._special_tempest()
@@ -762,6 +763,15 @@ class WorldSkillMixin:
             0.1 * self.progress_normalized
         self.user.current_map.reclimb(self.final_progress)
 
+    def _skill_vita_arc(self) -> None:
+        '''
+            vita 技能 2 far 会减少 1 over
+        '''
+        x = self.user_play.near_count // 2
+        over = self.character_used.overdrive.get_value(
+            self.character_used.level)
+        self.over_skill_increase = -min(x, over)
+
 
 class BaseWorldPlay(WorldSkillMixin):
     '''
@@ -1045,11 +1055,14 @@ class BeyondWorldPlay(BaseWorldPlay):
 
     @property
     def progress_normalized(self) -> float:
+        return self.base_progress * self.partner_multiply * self.affinity_multiplier
+
+    @property
+    def partner_multiply(self) -> float:
         overdrive = self.character_used.overdrive_value
         if self.over_skill_increase:
             overdrive += self.over_skill_increase
-
-        return self.base_progress * (overdrive / 50) * self.affinity_multiplier
+        return overdrive / 50
 
     def to_dict(self) -> dict:
         r = super().to_dict()
@@ -1058,7 +1071,7 @@ class BeyondWorldPlay(BaseWorldPlay):
         r['pre_boost_progress'] = self.progress_normalized * \
             self.user_play.fragment_multiply / 100
 
-        # r['partner_multiply'] = self.affinity_multiplier  # ?
+        r['partner_multiply'] = self.partner_multiply
 
         if self.over_skill_increase is not None:
             r['char_stats']['over_skill_increase'] = self.over_skill_increase