feat(武器): 为火山武器添加幻影攻击功能

在火山武器的第4段攻击时发射多支火山幻影，造成额外伤害。修改了动画、伤害计算和武器描述，包括：
- 添加count和dmg5属性控制幻影数量和伤害
- 调整幻影动画效果和速度
- 更新武器描述模板和显示文本

components/Bullets/Volcano.tscn

@@ -252,6 +252,20 @@ tracks/9/keys = {
 "times": PackedFloat32Array(0, 0.6, 1.2, 1.45)
 }
 tracks/9/use_blend = true
+tracks/10/type = "method"
+tracks/10/imported = false
+tracks/10/enabled = true
+tracks/10/path = NodePath("%texture/..")
+tracks/10/interp = 1
+tracks/10/loop_wrap = true
+tracks/10/keys = {
+"times": PackedFloat32Array(1.45),
+"transitions": PackedFloat32Array(1),
+"values": [{
+"args": [],
+"method": &"generateShadow"
+}]
+}
 
 [sub_resource type="AnimationLibrary" id="AnimationLibrary_w1utg"]
 _data = {

components/Bullets/VolcanoShadow.tscn

@@ -44,7 +44,7 @@ tracks/0/keys = {
 "times": PackedFloat32Array(0, 0.1, 0.90000004, 1),
 "transitions": PackedFloat32Array(1, 1, 1, 1),
 "update": 0,
-"values": [Color(1, 1, 1, 0), Color(1, 1, 1, 0.70000005), Color(1, 1, 1, 0.70000005), Color(1, 1, 1, 0)]
+"values": [Color(1, 1, 1, 0), Color(1, 1, 1, 0.5), Color(1, 1, 1, 0.5), Color(1, 1, 1, 0)]
 }
 tracks/1/type = "value"
 tracks/1/imported = false
@@ -53,10 +53,10 @@ tracks/1/path = NodePath("static:scale")
 tracks/1/interp = 1
 tracks/1/loop_wrap = true
 tracks/1/keys = {
-"times": PackedFloat32Array(0, 0.1, 0.90000004, 1),
-"transitions": PackedFloat32Array(1, 1, 1, 1),
+"times": PackedFloat32Array(0, 0.1, 1),
+"transitions": PackedFloat32Array(1, 1, 1),
 "update": 0,
-"values": [Vector2(0, 0), Vector2(0.8, 0.8), Vector2(0.8, 0.8), Vector2(0, 0)]
+"values": [Vector2(0, 0), Vector2(1.5, 1.5), Vector2(0, 0)]
 }
 
 [sub_resource type="AnimationLibrary" id="AnimationLibrary_i7b6y"]
@@ -70,7 +70,7 @@ size = Vector2(76, 12)
 
 [node name="VolcanoShadow" instance=ExtResource("1_4oiyn")]
 script = ExtResource("2_i7b6y")
-speed = 30.0
+speed = 25.0
 penerate = 1.0
 penerateDamageReduction = 0.2
 autoSpawnAnimation = true