feat: Implement Room Streaming System

- Add RoomStreamingManager to manage room loading and unloading based on player proximity.
- Create StreamingBudgetConfigSO for memory and performance budgeting of the streaming system.
- Introduce TransitionDirector to handle seamless and atmospheric fade transitions between rooms.
- Develop WorldGraph to represent room connectivity and facilitate neighbor queries and distance calculations.
- Implement RoomNode and RoomEdge classes to structure room data and connections.

Assets/_Game/Scripts/Enemies/Abilities/MultiDashAbility.cs

@@ -0,0 +1,49 @@
+using System.Collections;
+using UnityEngine;
+
+namespace BaseGames.Enemies.Abilities
+{
+    /// <summary>
+    /// 连续冲刺能力：将另一个 ChargeAbility 作为单次冲刺单元顺序触发 dashCount 次。
+    /// 每次冲刺之间间隔 pauseBetweenDashes 秒，每次冲刺前可重新朝向目标。
+    /// </summary>
+    public sealed class MultiDashAbility : EnemyAbilityBase
+    {
+        [Header("冲刺单元")]
+        [Tooltip("作为冲刺单元的 ChargeAbility 的 abilityId")]
+        [SerializeField] private string _dashAbilityId = "charge";
+
+        [Header("节奏")]
+        [SerializeField, Min(1)] private int _dashCount = 3;
+        [SerializeField, Min(0f)] private float _pauseBetweenDashes = 0.25f;
+        [SerializeField] private bool _refaceTargetEachDash = true;
+
+        protected override IEnumerator ExecuteCoroutine()
+        {
+            if (_enemy == null) yield break;
+            var dash = _enemy.Abilities.Get(_dashAbilityId);
+            if (dash == null)
+            {
+                Debug.LogWarning($"[MultiDashAbility] 找不到冲刺单元 abilityId='{_dashAbilityId}'", this);
+                yield break;
+            }
+
+            for (int i = 0; i < _dashCount; i++)
+            {
+                if (_refaceTargetEachDash && _enemy.PlayerTransform != null)
+                    FaceTarget(_enemy.PlayerTransform);
+
+                // 强制执行子冲刺（连段语义，忽略冷却）
+                if (!dash.ForceExecute())
+                {
+                    Debug.LogWarning($"[MultiDashAbility] ForceExecute 失败（第 {i + 1} 次）", this);
+                    yield break;
+                }
+                while (dash.IsRunning) yield return null;
+
+                if (i < _dashCount - 1 && _pauseBetweenDashes > 0f)
+                    yield return EnemyAbilityWaits.Get(_pauseBetweenDashes);
+            }
+        }
+    }
+}