feat: win代码同步

lib/utils/isolate_worker.dart

@@ -0,0 +1,21 @@
+import 'dart:async';
+import 'dart:isolate';
+
+/// Simple worker that executes functions in a separate isolate.
+/// Replacement for combine package's CombineWorker.
+class IsolateWorker {
+  /// Execute a function in a separate isolate and return the result.
+  ///
+  /// Note: The function must be a top-level function or a static method,
+  /// and it cannot capture non-sendable objects from the surrounding scope.
+  Future<T> execute<T>(T Function() computation, {bool allowSyncFallback = false}) async {
+    try {
+      return await Isolate.run(computation);
+    } catch (e) {
+      if (!allowSyncFallback) {
+        rethrow;
+      }
+      return computation();
+    }
+  }
+}