Keep stale tab cleanup from discarding fresh Files/Changes loads

mac/Sources/Byre/Changes.swift

@@ -138,11 +138,6 @@ final class ChangesModel {
         }
     }
 
-    func stop() {
-        target += 1
-        timer?.cancel()
-    }
-
     func transcript(_ fresh: [ByreEvent]) {
         if pinned != nil {
             return
@@ -234,7 +229,6 @@ struct ChangesView: View {
             }
             await untilCancelled()
             off?()
-            m.stop()
         }
         .onChange(of: store.pinned) {
             model?.retarget()

mac/Sources/Byre/Files.swift

@@ -113,11 +113,6 @@ private final class FilesModel {
         }
     }
 
-    func stop() {
-        target += 1
-        timer?.cancel()
-    }
-
     func load() async {
         guard let taskId = store.selectedTaskId else {
             return
@@ -206,7 +201,6 @@ struct FilesView: View {
             }
             await untilCancelled()
             off?()
-            m.stop()
         }
     }
 }

mac/Sources/Byre/Workflow.swift

@@ -136,7 +136,6 @@ struct WorkflowView: View {
             }
             await untilCancelled()
             off()
-            target += 1
         }
         .onChange(of: task?.workflow) {
             if run == nil && !loading && error.isEmpty {