refactor: Code cleanup

Author: chadsec1

logic/authentication.py

@@ -1,6 +1,4 @@
 """
-    logic/authentication.py
-    ----------
     Implements client-side account authentication with the Coldwire server.
     Uses ML-DSA-87 signatures to sign a challenge to verify account ownership.
 

logic/message.py

@@ -1,6 +1,4 @@
 """
-    logic/message.py
-    -----------
     Message sending, receiving, and one-time-pad key exchange logic.
 
     Handles:

logic/pfs.py

@@ -1,6 +1,4 @@
 """
-    logic/pfs.py
-    -----------------
     Handles Perfect Forward Secrecy (PFS) ephemeral keys exchange and rotation for contacts.
 
     Handles:

logic/smp.py

@@ -1,6 +1,4 @@
 """
-    logic/smp.py
-    ----------
     The socialist millionaire problem
     A variant of Yao's millionaire problem