fix(bridge): noteId match noteOn (0) for noteOff; create VST GUI window on main thread, attach on worker

native_bridge/src/Vst3Instrument.cpp

@@ -424,7 +424,10 @@ void Vst3Instrument::noteOff(uint32_t channel, uint32_t pitch, uint32_t sampleOf
     e.noteOff.channel = 0; // Force to MIDI Channel 1 (0) for VSTi compatibility
     e.noteOff.pitch = (int16)pitch;
     e.noteOff.velocity = 0.f;
-    e.noteOff.noteId = -1;
+    // noteId phai MATCH noteOn (0): Nexus/DUNE3 track notes bang id, -1
+    // khong khop voi note-on -> plugin giu note vo han (am thanh khong dung
+    // cho den khi kill bridge).
+    e.noteOff.noteId = 0;
     e.noteOff.tuning = 0.f;
     s->eventList.addEvent(e);
 #endif
@@ -485,21 +488,44 @@ bool Vst3Instrument::openGUI(void* parentWindowHandle) {
 #ifndef HAVE_VST3SDK
     (void)parentWindowHandle;
     return false;
+#else
+    if (!reloadForGUI()) return false;
+    return attachView(parentWindowHandle);
+#endif
+}
+
+bool Vst3Instrument::reloadForGUI() {
+#ifndef HAVE_VST3SDK
+    return false;
 #else
     auto* s = static_cast<Vst3HostState*>(state_);
-    std::cerr << "[dbg] openGUI hwnd=" << (void*)(uintptr_t)parentWindowHandle
-              << " controller=" << (s ? (s->controller ? 1 : 0) : -1) << std::endl;
-    if (!s || !s->controller || !parentWindowHandle) return false;
+    if (!s || !s->controller) return false;
     if (s->view && guiAttached_) return true;
     if (hasAttachedOnce_ && !guiAttached_) {
         // Reopen GUI sau khi dong: mot so plugin (Nexus...) hang o
         // view->attached() LAN 2 tren cung component instance. Tao lai inst
         // moi tren CUNG worker thread (COM STA con song) roi attach lai.
+        // PHAN NAY PHAI chay tren worker thread — apartment cua channel song
+        // o day; chay tren thread tam thi apartment moi chet ngay sau do
+        // (reopen lan sau -> treo nhu bridge_like).
         std::cerr << "[dbg] openGUI: re-attach - reloading fresh plugin instance" << std::endl;
         if (!reload()) return false;
         s = static_cast<Vst3HostState*>(state_);
         if (!s || !s->controller) return false;
     }
+    return true;
+#endif
+}
+
+bool Vst3Instrument::attachView(void* parentWindowHandle) {
+#ifndef HAVE_VST3SDK
+    (void)parentWindowHandle;
+    return false;
+#else
+    auto* s = static_cast<Vst3HostState*>(state_);
+    std::cerr << "[dbg] openGUI hwnd=" << (void*)(uintptr_t)parentWindowHandle
+              << " controller=" << (s ? (s->controller ? 1 : 0) : -1) << std::endl;
+    if (!s || !s->controller || !parentWindowHandle) return false;
     IPlugView* rawView = nullptr;
     tresult qi = s->controller->queryInterface(IPlugView::iid, (void**)&rawView);
     {