fix(mac): ensure hotkey registration on launch and direct modern macOS Sequoia Accessibility pane opening

mac/src/AppDelegate.swift

@@ -74,6 +74,7 @@ public final class AppDelegate: NSObject, NSApplicationDelegate {
         }
         RelayClient.shared.start()
         
+        HotkeyManager.shared.registerHotkeys()
         checkInitialPermissions()
     }
     
@@ -143,15 +144,18 @@ public final class AppDelegate: NSObject, NSApplicationDelegate {
         
         if !axTrusted {
             print("AppDelegate: ⚠️ Accessibility not yet granted! Prompting user and monitoring...")
-            // Open Accessibility pane directly
+            // Open Accessibility pane directly on both modern and legacy macOS
             DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
-                if let url = URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Accessibility") {
-                    NSWorkspace.shared.open(url)
+                if let url1 = URL(string: "x-apple.systempreferences:com.apple.settings.PrivacySecurity.extension?Privacy_Accessibility") {
+                    NSWorkspace.shared.open(url1)
+                }
+                if let url2 = URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Accessibility") {
+                    NSWorkspace.shared.open(url2)
                 }
             }
             
-            // Poll every 1.5 seconds until user toggles the switch
-            permissionPollTimer = Timer.scheduledTimer(withTimeInterval: 1.5, repeats: true) { [weak self] timer in
+            // Poll every 1.0 seconds until user toggles the switch
+            permissionPollTimer = Timer.scheduledTimer(withTimeInterval: 1.0, repeats: true) { [weak self] timer in
                 let nowTrusted = AXIsProcessTrusted()
                 if nowTrusted {
                     print("AppDelegate: 🟢 Accessibility Permission GRANTED by user!")