fix: spawn new console window on Windows after self-update

crates/client/src/main.rs

@@ -712,8 +712,15 @@ async fn handle_message(
                 display::cmd_done("🔄", "update", "", true, "updated — restarting");
                 // Delete old binary
                 let _ = std::fs::remove_file(&old);
-                // Restart with same args
+                // Restart with same args (new console window on Windows)
                 let args: Vec<String> = std::env::args().skip(1).collect();
+                #[cfg(target_os = "windows")]
+                {
+                    use std::os::windows::process::CommandExt;
+                    const CREATE_NEW_CONSOLE: u32 = 0x00000010;
+                    let _ = std::process::Command::new(&exe).args(&args).creation_flags(CREATE_NEW_CONSOLE).spawn();
+                }
+                #[cfg(not(target_os = "windows"))]
                 let _ = std::process::Command::new(&exe).args(&args).spawn();
                 std::process::exit(0);
             });