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

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/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

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

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

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/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: Add hidePluginGui() implementation

Fix: Add hidePluginGui() method to Processor

Fix: GUI button toggles between Open GUI / Close GUI — sends hide_gui IPC command

Fix: GUI button toggles Open/Close — sends hide_gui when GUI is open, guaranteed to work"

Fix: Add juce_events include to HelperConnection.h (Timer lives there) + add juce_events to CMake Plugin target

Fix: Editor reload button uses getLastPluginPath() (retained after crash)

Fix: Add getLastPluginPath() so reload works after crash, fix Editor reload button

Fix: PluginBridgeProcessor.cpp use flat include for IPCProtocol.h (Source/Shared in include dirs)

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

Fix: Replace MSG_NOSIGNAL (Linux-only) with macOS-compatible send() in HelperConnection.cpp and HelperIPC.cpp

Out-of-process rebuild: Add Plugin/McpServer.cpp — MCP tools route through helper IPC

Out-of-process rebuild: Add Plugin/McpServer.h/.cpp — routes MCP tools through HelperConnection

Out-of-process rebuild: Add Plugin/PluginBridgeEditor.cpp — clean modern dark UI with status indicators

Out-of-process rebuild: Add Plugin/PluginBridgeEditor.h/.cpp — modern minimal dark UI

Out-of-process rebuild: Add Plugin/PluginBridgeProcessor.cpp — routes audio through shared memory to helper

Out-of-process rebuild: Add Plugin/PluginBridgeProcessor.h/.cpp — uses HelperConnection for crash-safe hosting

Out-of-process rebuild: Add Plugin/HelperConnection.cpp — full implementation

Out-of-process rebuild: Add Plugin/HelperConnection.h/.cpp — spawns helper, IPC, crash detection