fix(client): use cmd /D to disable AutoRun, prevents terminal clear on each command

crates/client/src/shell.rs

@@ -80,7 +80,9 @@ async fn spawn_cmd_windows(
     let full_cmd = format!("chcp 65001 >nul 2>&1 && {command}");
 
     let mut cmd = Command::new("cmd.exe");
-    cmd.args(["/C", &full_cmd]);
+    // /D disables AutoRun registry commands (prevents user's `clear` or other
+    // startup hooks from wiping the client's terminal output).
+    cmd.args(["/D", "/C", &full_cmd]);
 
     if let Some(ref dir) = cwd {
         cmd.current_dir(dir);