Harden JSON event parsing and broadcast message formatting

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <[email protected]>

lib/formatter.py

@@ -78,12 +78,15 @@ def format_message(message, add_timestamp=True):
     # Handle broadcast messages
     attributes = 0
     if message[:10] == "broadcast:":
-        message = message[11:]
+        message = message[10:].lstrip()
         attributes = 1  # Bold
 
     # Handle print messages
     if message[:7] == "print \"":
-        message = message[7:-2] + "\n"
+        message = message[7:]
+        if message.endswith("\""):
+            message = message[:-1]
+        message = message.rstrip() + "\n"
 
     # Add timestamp if requested and appropriate
     if add_timestamp and should_add_timestamp(message):
@@ -173,7 +176,7 @@ def format_powerup_message(message, player_tracker):
     import time
 
     if message.startswith("broadcast:"):
-        message = message[11:].strip()
+        message = message[10:].strip()
 
     # Strip print " wrapper
     if message.startswith('print "'):