Fix: Update HelperConnection.h include paths to use flat includes (Source/Shared is in include dirs)

Source/Plugin/HelperConnection.h

@@ -7,8 +7,8 @@
 #include <functional>
 #include <mutex>
 
-#include "../Shared/SharedAudioBuffer.h"
-#include "../Shared/IPCProtocol.h"
+#include "SharedAudioBuffer.h"
+#include "IPCProtocol.h"
 
 class HelperConnection : private juce::Timer
 {
@@ -55,7 +55,7 @@ private:
 
     // IPC socket (parent is server)
     int serverSocketFd = -1;
-    int clientSocketFd = -1;  // connection from helper
+    int clientSocketFd = -1;
     std::thread ipcThread;
     std::atomic<bool> ipcRunning{false};