feat(子弹): 为扫帚子弹添加基础属性配置

添加displayName、speed、motionType等基础属性配置，用于控制子弹行为和显示

components/Bullets/SwingSword.tscn

@@ -240,6 +240,12 @@ size = Vector2(259.81308, 36.189156)
 
 [node name="SwingSword" unique_id=5571707 instance=ExtResource("1_f7kh1")]
 script = ExtResource("2_23nu4")
+displayName = "扫帚"
+speed = 15.0
+motionType = 0
+penerate = 1.0
+autoSpawnAnimation = true
+freeAfterSpawn = true
 
 [node name="texture" parent="." index="0" unique_id=162977358]
 scale = Vector2(2, 2)