fix(server): run on non-Windows python (#94)

desktop_env/server/main.py

@@ -88,8 +88,19 @@ def execute_command():
 
     # Execute the command without any safety checks.
     try:
-        result = subprocess.run(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=shell, text=True,
-                                timeout=120, creationflags=subprocess.CREATE_NO_WINDOW)
+        if platform_name == "Windows":
+            flags = subprocess.CREATE_NO_WINDOW
+        else:
+            flags = 0
+        result = subprocess.run(
+            command,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+            shell=shell,
+            text=True,
+            timeout=120,
+            creationflags=flags,
+        )
         return jsonify({
             'status': 'success',
             'output': result.stdout,