Fix: Replace removed juce::Thread::setCurrentThreadPriority with native pthread priority (macOS)

Source/Helper/HelperPluginHost.cpp

@@ -1,6 +1,8 @@
 #include "HelperPluginHost.h"
 #include "Constants.h"
 #include <juce_audio_basics/juce_audio_basics.h>
+#include <pthread.h>
+#include <sched.h>
 
 HelperPluginHost::HelperPluginHost()
 {
@@ -117,7 +119,10 @@ void HelperPluginHost::stopProcessing()
 
 void HelperPluginHost::audioProcessingLoop()
 {
-    juce::Thread::setCurrentThreadPriority(10);
+    // Set realtime thread priority using native macOS/POSIX API
+    struct sched_param param;
+    param.sched_priority = sched_get_priority_max(SCHED_FIFO);
+    pthread_setschedparam(pthread_self(), SCHED_FIFO, &param);
 
     while (processing.load())
     {