补充事件参数 + 完善 UI 设计

- 事件节点在 EventNodeComponent.cs 的 StartEvent/EndEvent 会携带 runId/nodeId/nodeType/sequenceIndex
- 商店节点在 ShopNodeComponent.cs 也会带同一套字段
- 战斗节点通过 CombatNodeComponent.cs 把上下文传进 CombatScheduler，再由 CombatRunningPhaseState.cs 发 NodeEnterEventArgs、由   CombatSchedulerFlowCoordinator.cs 发 NodeCompleteEventArgs
- NodeCompleteEventArgs.cs 现在新增了 SequenceIndex
- 各种 UI 的覆盖问题

Assets/GameMain/Tests/Editor/RunStateTests.cs

@@ -108,6 +108,7 @@ namespace GeometryTD.Tests.Editor
                 "run-1",
                 7,
                 RunNodeType.Shop,
+                3,
                 true,
                 inventory);
 
@@ -116,6 +117,7 @@ namespace GeometryTD.Tests.Editor
             Assert.That(eventArgs.RunId, Is.EqualTo("run-1"));
             Assert.That(eventArgs.NodeId, Is.EqualTo(7));
             Assert.That(eventArgs.NodeType, Is.EqualTo(RunNodeType.Shop));
+            Assert.That(eventArgs.SequenceIndex, Is.EqualTo(3));
             Assert.That(eventArgs.Succeeded, Is.True);
             Assert.That(eventArgs.InventorySnapshotAfterNode.Gold, Is.EqualTo(66));
 
@@ -124,6 +126,7 @@ namespace GeometryTD.Tests.Editor
             Assert.That(eventArgs.RunId, Is.Null);
             Assert.That(eventArgs.NodeId, Is.EqualTo(0));
             Assert.That(eventArgs.NodeType, Is.EqualTo(RunNodeType.None));
+            Assert.That(eventArgs.SequenceIndex, Is.EqualTo(-1));
             Assert.That(eventArgs.Succeeded, Is.False);
             Assert.That(eventArgs.InventorySnapshotAfterNode, Is.Null);
         }