feat(dialog): 添加梦境选项提示语支持

标记 #option_prompt 的台词不再进入普通台词流程，由 OptionView
暂存并在下一组 Dream Options 出现时显示在选项上方，同时通过
新增 LineHistoryAppend 事件加入对话历史。OnelineOptions 支持
提示语文本与独立选项根节点，并改为按实例追踪销毁按钮。

Assets/Scripts/Dialog System/LineRunner.cs

@@ -24,6 +24,13 @@ namespace AibisDream
 
         public override async YarnTask RunLineAsync(LocalizedLine dialogueLine, LineCancellationToken token)
         {
+            // 选项提示语由 OptionView 暂存，并在 Dream Options 出现时直接显示。
+            // 不创建 LineSyncToken，避免进入普通台词的动画、推进和音频流程。
+            if (dialogueLine.IsOptionPromptLine())
+            {
+                return;
+            }
+
             var lineSyncEvent = BuildSyncToken(dialogueLine);
             DialogController.Instance.lineSyncToken = lineSyncEvent;
             DispatchToView(dialogueLine, lineSyncEvent);

Assets/Scripts/Dialog System/OptionView.cs

@@ -4,6 +4,7 @@ using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using AibisDream.Framework;
+using AibisDream.Utility;
 using UnityEngine;
 using Yarn.Unity;
 
@@ -17,6 +18,7 @@ namespace AibisDream
         [SerializeField] private DialogViewType defaultViewType = DialogViewType.StandardBubble;
 
         private OptionExploreTracker? _tracker;
+        private LineInfo? _pendingOptionPrompt;
 
         private void Awake()
         {
@@ -32,20 +34,36 @@ namespace AibisDream
 
         public override YarnTask OnDialogueStartedAsync()
         {
+            ClearPendingOptionPrompt();
             return YarnTask.CompletedTask;
         }
 
         public override YarnTask OnDialogueCompleteAsync()
         {
+            ClearPendingOptionPrompt();
             HideDialog();
             return YarnTask.CompletedTask;
         }
 
         public override YarnTask RunLineAsync(LocalizedLine line, LineCancellationToken token)
         {
+            if (line.IsOptionPromptLine())
+            {
+                _pendingOptionPrompt = LineInfo.Generate(line);
+            }
+            else
+            {
+                ClearPendingOptionPrompt();
+            }
+
             return YarnTask.CompletedTask;
         }
 
+        public override void OnNodeExit(string nodeName)
+        {
+            ClearPendingOptionPrompt();
+        }
+
         public void LoadBubbles(BubbleSlotGroupData data)
         {
             defaultViewType = data.dialogViewType;
@@ -68,6 +86,8 @@ namespace AibisDream
                 optionId => optionSelectedSource.TrySetResult(optionId));
 
             var viewType = GetCurrentViewType(options);
+            var optionPrompt = _pendingOptionPrompt;
+            ClearPendingOptionPrompt();
 
             switch (viewType)
             {
@@ -76,7 +96,13 @@ namespace AibisDream
                     defaultOptions.ShowOptions(options);
                     break;
                 case DialogViewType.OnelineBox:
-                    onelineOptions.ShowOptions(options);
+                    onelineOptions.ShowOptions(options, optionPrompt?.lineText);
+                    if (optionPrompt.HasValue)
+                    {
+                        EnumEventSystem.Global.Send(
+                            DialogEventEnum.LineHistoryAppend,
+                            optionPrompt.Value);
+                    }
                     break;
                 case DialogViewType.CenterOption:
                     centerOptions.ShowOptions(options);
@@ -106,10 +132,16 @@ namespace AibisDream
             }
             catch (TaskCanceledException)
             {
+                HideDialog();
                 return null;
             }
         }
 
+        private void ClearPendingOptionPrompt()
+        {
+            _pendingOptionPrompt = null;
+        }
+
         private DialogViewType GetCurrentViewType(DialogOption[] options)
         {
             var optionViewType = options[0].Character.dialogViewType;