refactor and add pin support to program facades

python/keycard_wallet.py

@@ -106,7 +106,7 @@ class KeycardWallet:
                 public_only = True,  
                 keypath = path  
             )   
-            # TODO (marvin) clean this up
+
             public_key = public_key.public_key
             public_key = VerifyingKey.from_string(public_key[1:], curve=SECP256k1)  
             public_key = public_key.to_string("compressed")[1:]
@@ -117,11 +117,12 @@ class KeycardWallet:
             print(f"Error getting public key: {e}")
             return None
 
+
     def sign_message_for_path(self, message: bytes = b"DefaultMessageTestDefaultMessage", path: str = "m/44'/60'/0'/0/0") -> bytes | None:
         try:
             if not self.card.is_secure_channel_open or not self.card.is_pin_verified:
                 return None
-            
+
             signature = self.card.sign_with_path(
                 digest = message,
                 path = path,