feat: ensure stdout is flushed after StardustXR connection message

src/main.cpp

@@ -82,6 +82,7 @@ int main(int argc, char** argv) {
     }
     
     std::cout << "[main] StardustXR connected, continuing to Overte setup..." << std::endl;
+    std::cout.flush();  // Force flush to ensure message appears
 
     // Overte localhost default assumption (can override via OVERTE_URL env or --overte=ws://host:port)
     std::string overteUrl = "ws://127.0.0.1:40102";