test(overlay): cover token guard outcomes

apps/macos/Tests/ClawdisIPCTests/VoiceWakeOverlayTests.swift

@@ -0,0 +1,21 @@
+import Foundation
+import Testing
+@testable import Clawdis
+
+@Suite struct VoiceWakeOverlayTests {
+    @Test func guardTokenDropsWhenNoActive() {
+        let outcome = VoiceWakeOverlayController.evaluateToken(active: nil, incoming: UUID())
+        #expect(outcome == .drop)
+    }
+
+    @Test func guardTokenAcceptsMatching() {
+        let token = UUID()
+        let outcome = VoiceWakeOverlayController.evaluateToken(active: token, incoming: token)
+        #expect(outcome == .accept)
+    }
+
+    @Test func guardTokenDismissesMismatch() {
+        let outcome = VoiceWakeOverlayController.evaluateToken(active: UUID(), incoming: UUID())
+        #expect(outcome == .dismiss)
+    }
+}