⚡ improve multitouch gesture lifecycle handling

Author: mrkai77

Loop/Core/LoopManager.swift

@@ -131,8 +131,6 @@ final class LoopManager {
     )
 
     func start() {
-        multitouchTrigger.prepare()
-
         accessibilityCheckerTask = Task(priority: .background) { [weak self] in
             for await status in AccessibilityManager.shared.stream(initial: true) {
                 guard let self, !Task.isCancelled else {

Loop/Core/Multitouch/MultitouchGestureBlocker.swift

@@ -18,8 +18,14 @@ final class MultitouchGestureBlocker {
     private var activeCount: Int = 0
 
     func start() {
-        activeCount += 1
-        guard monitor == nil else { return }
+        if let monitor, monitor.isEnabled {
+            activeCount += 1
+            return
+        }
+
+        monitor?.stop()
+        monitor = nil
+        activeCount = 0
 
         log.info("Starting gesture blocker")
 
@@ -32,11 +38,22 @@ final class MultitouchGestureBlocker {
             CGEventType(rawValue: UInt32(NSEvent.EventType.smartMagnify.rawValue))
         ].compactMap(\.self)
 
-        monitor = ActiveEventMonitor("gesture_blocker", events: eventTypes) { _ in .ignore }
-        monitor?.start()
+        let newMonitor = ActiveEventMonitor("gesture_blocker", events: eventTypes) { _ in .ignore }
+        newMonitor.start()
+
+        guard newMonitor.isEnabled else {
+            log.warn("Failed to start gesture blocker")
+            newMonitor.stop()
+            return
+        }
+
+        monitor = newMonitor
+        activeCount = 1
     }
 
     func stop() {
+        guard activeCount > 0 || monitor != nil else { return }
+
         activeCount = max(0, activeCount - 1)
         guard activeCount == 0 else { return }