Show bridge resultSummary in task output

lib/runtime/go_task_service_client.dart

@@ -762,6 +762,8 @@ GoTaskServiceResult goTaskServiceResultFromAcpResponse(
               ? result['output'].toString().trim()
               : result['summary']?.toString().trim().isNotEmpty == true
               ? result['summary'].toString().trim()
+              : result['resultSummary']?.toString().trim().isNotEmpty == true
+              ? result['resultSummary'].toString().trim()
               : result['message']?.toString().trim() ?? '')
           .trim();
   final primaryText =

test/runtime/go_task_service_client_result_parsing_test.dart

@@ -0,0 +1,38 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:xworkmate/runtime/go_task_service_client.dart';
+
+void main() {
+  group('goTaskServiceResultFromAcpResponse', () {
+    test('uses resultSummary when output summary and message are empty', () {
+      final result = goTaskServiceResultFromAcpResponse(
+        <String, dynamic>{
+          'result': <String, dynamic>{
+            'success': true,
+            'resultSummary': 'bridge result summary',
+            'resolvedExecutionTarget': 'single-agent',
+          },
+        },
+        route: GoTaskServiceRoute.externalAcpSingle,
+      );
+
+      expect(result.success, isTrue);
+      expect(result.message, 'bridge result summary');
+    });
+
+    test('still prefers output over resultSummary when both exist', () {
+      final result = goTaskServiceResultFromAcpResponse(
+        <String, dynamic>{
+          'result': <String, dynamic>{
+            'success': true,
+            'output': 'primary output',
+            'resultSummary': 'bridge result summary',
+            'resolvedExecutionTarget': 'single-agent',
+          },
+        },
+        route: GoTaskServiceRoute.externalAcpSingle,
+      );
+
+      expect(result.message, 'primary output');
+    });
+  });
+}