fix(qbzd): QConnect bootstrap clears pending between commands

The second command (AskForQueueState) was failing because the
first (JoinSession) was still pending. Now clears pending slot
between commands with 500ms delay, matching desktop behavior.

Also fixed state_handle() Arc lifetime issues.

cc

crates/qbzd/src/qconnect.rs

@@ -154,24 +154,42 @@ pub async fn start_qconnect(
     Some(app)
 }
 
-/// Bootstrap: send CtrlSrvrJoinSession + AskForQueueState.
+/// Bootstrap: send CtrlSrvrJoinSession, wait, then AskForQueueState.
+/// Matches desktop's bootstrap_remote_presence exactly.
 async fn bootstrap_remote_presence(app: &Arc<App>, device_name: &str) -> Result<(), String> {
     let device_info = build_device_info(device_name);
 
-    // Controller JoinSession
+    // Controller JoinSession (the server responds with session topology)
     let join_payload = serde_json::json!({
         "session_uuid": null,
         "device_info": device_info,
     });
     let join_cmd = app.build_queue_command(QueueCommandType::CtrlSrvrJoinSession, join_payload).await;
-    let _ = app.send_queue_command(join_cmd).await
+    let join_uuid = app.send_queue_command(join_cmd).await
         .map_err(|e| format!("join_session failed: {}", e))?;
 
-    // Ask for queue state
+    // Clear pending so the next command isn't blocked (JoinSession response
+    // is session topology, not a queue reducer event)
+    {
+        let handle = app.state_handle();
+        let mut state = handle.lock().await;
+        state.pending.clear();
+    }
+
+    // Small delay to let the server process the join
+    tokio::time::sleep(std::time::Duration::from_millis(500)).await;
+
+    // Ask for current queue state
     let ask_cmd = app.build_queue_command(QueueCommandType::CtrlSrvrAskForQueueState, serde_json::json!({})).await;
-    let _ = app.send_queue_command(ask_cmd).await
+    let ask_uuid = app.send_queue_command(ask_cmd).await
         .map_err(|e| format!("ask_queue_state failed: {}", e))?;
 
+    {
+        let handle = app.state_handle();
+        let mut state = handle.lock().await;
+        state.pending.clear();
+    }
+
     log::info!("[qbzd/qconnect] Bootstrap: controller joined, queue requested");
     Ok(())
 }