feat: Round 49 narrative systems improvements

QuestManager: extract CheckQuestDepsAndFlags shared method, simplify GetQuestLockInfo/CanAccept/MeetsPrerequisites; add GetQuestsInState+FilterQuests implementations; fix extra brace compile bug; add _pauseTimestamps logging; use actualDelta in ApplyAffinity event.

QuestSO: add depth>32 guard to HasPrerequisiteCycle and HasBranchCycle to prevent editor freeze on deep chains.

EventChainModule: replace FindObjectOfType with ServiceLocator.GetOrDefault in ForceExecute; add self-trigger flag detection (check 6) in ValidateAllChains using reflection.

DialogueVariantPreviewWindow: add matrix analysis section enumerating all 2^N flag combinations (N<=10) with table showing winning variant per combination.

WorldStateRegistry: LoadFromSave null guard on data.World sub-collections (P0 fix).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Assets/_Game/Scripts/Quest/IQuestManager.cs

@@ -119,6 +119,18 @@ namespace BaseGames.Quest
         /// 若任务当前可以接取，返回 <see cref="QuestLockInfo.Reason"/> 为 <see cref="QuestLockReason.None"/> 的实例。
         /// </summary>
         QuestLockInfo GetQuestLockInfo(string questId);
+
+        /// <summary>
+        /// 返回当前处于指定状态的所有任务 ID 快照列表。
+        /// 适用于任务日志 UI 分组显示、成就系统批量统计等场景。
+        /// </summary>
+        System.Collections.Generic.IReadOnlyList<string> GetQuestsInState(QuestStateEnum state);
+
+        /// <summary>
+        /// 对所有已注册任务执行谓词过滤，返回满足条件的任务 ID 快照列表。
+        /// 适用于自定义筛选（如"活跃且含 NPC 亲密度门槛"）等场景。
+        /// </summary>
+        System.Collections.Generic.IReadOnlyList<string> FilterQuests(System.Func<string, QuestStateEnum, bool> predicate);
     }
 
     /// <summary>