fix: restore v0.5.2 architecture + wire AudioAnalyser correctly

wire AudioAnalyser: prepareToPlay + processBlock + MCP callback (3 additions)

Upload Source/Plugin/McpServer.cpp

Upload Source/Plugin/McpServer.h

integrate AudioAnalyser into Processor + wire get_analysis in McpServer

Sprint 4: Add AudioAnalyser — LUFS, FFT bands, stereo width, centroid, true peak

fix: replace CARemoteLayerServer with CAContext+CALayerHost for cross-process GUI

fix: wire onGuiCreated callback in HelperIPC constructor to send gui_ready notification

fix: call onGuiCreated callback after CARemoteLayerServer setup completes in showGui()

fix: send gui_ready notification after showGui — use callback from HelperPluginHost to IPC

fix: use setLayerPortName() instead of direct member access

fix: add setLayerPortName() public method (layerPortName is private)

Upload Source/Plugin/Blocklist.h

remove old files replaced by .mm versions + Blocklist (now in PluginBridgeProcessor.h)

Upload Source/Plugin/McpServer.cpp

Upload Source/Plugin/McpServer.h

Upload Source/Helper/HelperIPC.cpp

Upload Source/Helper/HelperIPC.h

Upload Source/Plugin/HelperConnection.cpp

Upload Source/Plugin/HelperConnection.h

Upload Source/Plugin/PluginBridgeEditor.mm

Upload Source/Plugin/PluginBridgeEditor.h

Upload Source/Plugin/PluginBridgeProcessor.cpp

Upload Source/Plugin/PluginBridgeProcessor.h

Upload Source/Helper/main.cpp

Upload Source/Helper/HelperPluginHost.mm

Upload Source/Helper/HelperPluginHost.h

Upload Source/Shared/Constants.h

v0.4: CARemoteLayerServer architecture — crash-safe + GUI inside Ableton window

fix: Blocklist path corrected to ~/Library/PluginBridge/ (where JUCE actually writes)"

fix: findHelperBinary looks for .app bundle, not bare executable

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

implement Helper test-load: spawns Helper before in-process load, blocks crashy plugins

fix: add showingError bool to editor header

fix: replace getColour() with bool flag (Label has no getColour in JUCE 8)

fix: add TestResult enum to header (was in .cpp but missing from .h)

Upload Source/Helper/HelperPluginHost.cpp

Upload Source/Helper/HelperPluginHost.h

Upload Source/Helper/main.cpp

Upload Source/Plugin/McpServer.cpp

Upload Source/Plugin/McpServer.h

Upload Source/Plugin/Blocklist.h

Upload Source/Plugin/PluginBridgeEditor.cpp

Upload Source/Plugin/PluginBridgeEditor.h

Upload Source/Plugin/PluginBridgeProcessor.cpp

NEW ARCHITECTURE: In-process hosting + Helper as safety tester + embedded GUI

fix: restore setAlwaysOnTop(true) — fixes GUI opening in separate space in fullscreen

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

STOP — revert HelperPluginHost to last known working state (GUI in Helper but with original window behavior before all my 'fixes')

fix: show plugin GUI in-process (inside Ableton window) not from Helper