mac: respect webchat disabled for left click

apps/macos/Sources/Clawdis/MenuBar.swift

@@ -79,6 +79,11 @@ struct ClawdisApp: App {
 
     @MainActor
     private func toggleWebChatPanel() {
+        guard AppStateStore.webChatEnabled else {
+            // When web chat is disabled, fall back to normal menu behavior.
+            self.isMenuPresented = true
+            return
+        }
         self.isMenuPresented = false
         WebChatManager.shared.togglePanel(
             sessionKey: WebChatManager.shared.preferredSessionKey(),