feat: Add WorldStateFlagAttribute and custom property drawer for enhanced dialogue management

- Implemented WorldStateFlagAttribute to mark string fields as world state flags.
- Created NarrativeNPCEditor for custom inspector to visualize dialogue version activation states.
- Developed WorldStateFlagDrawer to provide dropdown menu for known flags in the inspector.
- Introduced ActorModule for managing DialogueActorSO assets, including viewing, creating, and deleting actors.
- Added DialogueModule for managing DialogueSequenceSO assets with detailed previews and action bars.
- Established QuestModule for managing QuestSO assets, including objectives and branches.
- Implemented QuestManagerPostprocessor to automatically refresh QuestManager's quest list on asset changes.

Assets/_Game/Scripts/Editor/Quest/QuestManagerPostprocessor.cs

@@ -0,0 +1,64 @@
+using System.Reflection;
+using UnityEditor;
+using UnityEngine;
+
+namespace BaseGames.Quest.Editor
+{
+    /// <summary>
+    /// 监听 QuestSO 资产的增删/移动事件，自动刷新场景中 QuestManager 的 _allQuests 列表。
+    /// 保证策划通过 DataHub 创建新任务后无需手动触发 OnValidate。
+    /// </summary>
+    internal sealed class QuestManagerPostprocessor : AssetPostprocessor
+    {
+        private static void OnPostprocessAllAssets(
+            string[] imported, string[] deleted, string[] moved, string[] movedFrom)
+        {
+            if (!NeedsRefresh(imported) && !NeedsRefresh(deleted) && !NeedsRefresh(moved))
+                return;
+
+            RefreshAllQuestManagers();
+        }
+
+        private static bool NeedsRefresh(string[] paths)
+        {
+            if (paths == null) return false;
+            foreach (var p in paths)
+            {
+                if (p.EndsWith(".asset", System.StringComparison.OrdinalIgnoreCase)
+                    && AssetDatabase.GetMainAssetTypeAtPath(p) == typeof(QuestSO))
+                    return true;
+            }
+            return false;
+        }
+
+        /// <summary>
+        /// 在所有已加载场景中查找 QuestManager，通过反射调用其
+        /// EditorRefreshQuestList 方法（#if UNITY_EDITOR 区块内定义）。
+        /// </summary>
+        private static void RefreshAllQuestManagers()
+        {
+            var managers = Object.FindObjectsByType<QuestManager>(
+                FindObjectsInactive.Include, FindObjectsSortMode.None);
+
+            if (managers == null || managers.Length == 0) return;
+
+            var method = typeof(QuestManager).GetMethod(
+                "EditorRefreshQuestList",
+                BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
+
+            if (method == null)
+            {
+                Debug.LogWarning("[QuestManagerPostprocessor] 未找到 EditorRefreshQuestList 方法，请确认 QuestManager 包含该方法。");
+                return;
+            }
+
+            foreach (var mgr in managers)
+            {
+                method.Invoke(mgr, null);
+                EditorUtility.SetDirty(mgr);
+            }
+
+            Debug.Log($"[QuestManagerPostprocessor] 已刷新 {managers.Length} 个 QuestManager 的任务列表。");
+        }
+    }
+}