fix: use setLayerPortName() instead of direct member access

Upload Source/Helper/main.cpp

fix: Helper test-load — handle paths with spaces + allow message loop to run

Upload Source/Helper/main.cpp

revert main.cpp — remove NSApplicationActivationPolicyAccessory (this broke the fullscreen behavior)

fix: set NSApplicationActivationPolicyAccessory at launch to prevent separate app appearance

Fix: Helper/main.cpp use flat includes (Source/Shared in include dirs)

Out-of-process rebuild: Add Helper/main.cpp — standalone helper process entry point