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

components/Bullets/Broom.tscn

@@ -281,7 +281,7 @@ size = Vector2(252, 39.99996)
 [node name="Broom" unique_id=5571707 instance=ExtResource("1_t7cj0")]
 script = ExtResource("2_p0bgf")
 displayName = "扫帚"
-baseDamage = 20.0
+baseDamage = 15.0
 motionType = 0
 penerate = 1.0
 
@@ -303,7 +303,7 @@ local_coords = true
 process_material = SubResource("ParticleProcessMaterial_87bq4")
 
 [node name="hitbox" parent="." index="1" unique_id=175349408 node_paths=PackedStringArray("target")]
-position = Vector2(200, 0)
+position = Vector2(200, 1.907981e-05)
 rotation = -3.1415925
 shape = SubResource("RectangleShape2D_keubc")
 disabled = true

components/Bullets/BroomBoomerang.tscn

@@ -147,7 +147,7 @@ radius = 124.01613
 script = ExtResource("2_14u4g")
 displayName = "扫帚回旋镖"
 speed = 40.0
-baseDamage = 15.0
+baseDamage = 5.0
 penerate = 1.0
 lifeTime = 10000.0
 autoLoopAnimation = true

components/Bullets/BroomGun.tscn

@@ -199,6 +199,7 @@ size = Vector2(1968, 44)
 [node name="BroomGun" unique_id=5571707 instance=ExtResource("1_7ykg5")]
 script = ExtResource("2_jn776")
 displayName = "扫帚炮"
+baseDamage = 5.0
 motionType = 2
 penerate = 1.0
 autoSpawnAnimation = true