feat: switch to multi-threaded Tokio runtime in sdxr_start for improved performance

bridge/src/lib.rs

@@ -125,8 +125,8 @@ pub extern "C" fn sdxr_start(app_id: *const std::os::raw::c_char) -> i32 {
     let shared_state = Arc::new(Mutex::new(BridgeState::default()));
     let shared_for_commands = Arc::clone(&shared_state);
 
-    // Build a single-threaded Tokio runtime for the client
-    let rt = tokio::runtime::Builder::new_current_thread()
+    // Build a multi-threaded Tokio runtime for the client
+    let rt = tokio::runtime::Builder::new_multi_thread()
         .enable_all()
         .build()
         .expect("tokio runtime");