UUID Tracking, and some other minor things

data/cat.py

@@ -1,4 +1,5 @@
 import time  # first import here!
+import uuid
 
 
 class Cat:
@@ -13,6 +14,7 @@ class Cat:
         happiness=100,
         sick=False,
         depressed=False,
+        cat_uuid=None,
     ):
         self.name = name
         self.traits = traits
@@ -23,6 +25,7 @@ class Cat:
         self.happiness = happiness
         self.sick = sick
         self.depressed = depressed
+        self.cat_uuid = cat_uuid or str(uuid.uuid4())
 
     def apply_decay(self):  # first neat function! yayyy!
         elapsed_hours = (time.time() - self.last_login) / 3600