Revert incorrect security changes to backend.py

Author: MirkoZETA

backend.py

@@ -6,7 +6,6 @@
 from utils.helpers import *
 import time
 import json
-import html
 
 # --- Flask Application Setup --- 
 app = Flask(__name__)
@@ -100,9 +99,6 @@ def run_simulation_stream():
     if not is_valid:
       return result
 
-    # Escape result to prevent XSS
-    result = html.escape(result)
-
     # Build command
     command = build_simulation_command(result)
     logger.debug(f"Running streaming simulation with command: {' '.join(command)}")