fix(overlay): dismiss on token mismatch; keep gateway log clear helper

apps/macos/Sources/Clawdis/GatewayProcessManager.swift

@@ -231,8 +231,4 @@ final class GatewayProcessManager: ObservableObject {
     func projectRootPath() -> String {
         CommandResolver.projectRootPath()
     }
-
-    func clearLog() {
-        self.log = ""
-    }
 }

apps/macos/Sources/Clawdis/VoiceWakeOverlay.swift

@@ -271,6 +271,8 @@ final class VoiceWakeOverlayController: ObservableObject {
                 active=\(active.uuidString, privacy: .public) \
                 got=\(token.uuidString, privacy: .public)
                 """)
+            // If tokens diverge, clear the stale overlay so the UI can resync.
+            self.dismiss(reason: .explicit, outcome: .empty)
             return false
         }
         return true