fix: 调整扫帚武器伤害值及能量块行为

调整扫帚系列武器的伤害值以平衡游戏性：
- 扫帚回旋镖基础伤害从15降至5
- 扫帚炮新增基础伤害5
- 扫帚基础伤害从20降至15

优化能量块行为逻辑：
- 新增移动速度属性
- 扩展攻击互斥组和攻击类型
- 调整攻击3类型时的速度变化逻辑

scripts/Contents/Characters/EnergyBlock.gd

@@ -5,6 +5,7 @@ var currentBroom: BroomBullet
 
 func register():
 	fields[FieldStore.Entity.MAX_HEALTH] = 1500
+	fields[FieldStore.Entity.MOVEMENT_SPEED] = 0.7
 	attackCooldownMap[0] = 6000
 	attackCooldownMap[1] = 3000
 	attackCooldownMap[2] = 8000
@@ -12,12 +13,12 @@ func register():
 	attackCooldownMap[4] = 2000
 	attackCooldownMap[5] = 2000
 	attackCooldownMap[6] = 5000
-	attackMutexes = [0, 1]
+	attackMutexes = [0, 1, 3]
 	sprintMultiplier = 30
 func ai():
 	PresetEntityAI.distanceAttack(self , currentFocusedBoss, 0, 300, 0)
 	for i in 6:
-		tryAttack(i + 1, [3])
+		tryAttack(i + 1, [3, 4])
 	if 1 not in attackingStates:
 		PresetEntityAI.follow(self , currentFocusedBoss)
 func attack(type: int):
@@ -44,8 +45,11 @@ func attack(type: int):
 	elif type == 3:
 		for bullet in BulletBase.generate(ComponentManager.getBullet("Broom"), self , getTrackingAnchor(), 0):
 			if bullet is BroomBullet:
+				fields[FieldStore.Entity.MOVEMENT_SPEED] *= 2
 				await TickTool.frame()
 				bullet.animator.play("rotate")
+				await bullet.destroied
+				fields[FieldStore.Entity.MOVEMENT_SPEED] /= 2
 	elif type == 4:
 		BulletBase.generate(ComponentManager.getBullet("BroomBoomerang"), self , position, position.angle_to_point(currentFocusedPosition))
 	elif type == 5: