Avoid using a weak name link

the existing variable was a set, all the existing use cases still work (contains tests, iteration, turning into lists...)

game/scripts/01cds.rpy

@@ -79,7 +79,7 @@ python early hide:
             return (who, action)
 
         def execute(self):
-            print(f"{self}")
+            print(self)
             who, action = self
             chibi = DollChibi.instance[who]
             getattr(chibi, action)
@@ -101,7 +101,7 @@ python early hide:
             who, action = self
 
             chibi = DollChibi.instances[who]
-            doll = getattr(store, who)
+            doll = states.dolls[who]
 
             layers = (
                 l[0] for pose in chibi.poses.keys()

game/scripts/doll/main.rpy

@@ -1,3 +1,5 @@
+define renpy.store.states.dolls = {}
+
 init python:
     class Doll(DollMethods):
         # 0 - 50 = Skin/Body Layers
@@ -77,11 +79,7 @@ init python:
 
             self.build_image()
 
-            # Add doll name to global doll states store
+            renpy.store.states.dolls[name] = self
-            try:
-                renpy.store.states.dolls.add(name)
-            except AttributeError:
-                renpy.store.states.dolls = {name}
 
         def generate_hash(self):
             clothes_hash = str([x[0]._hash for x in self.states.values() if istype(x[0], (DollCloth, DollClothDynamic, DollMakeup)) and x[2]])