feat(子弹系统): 重构伤害计算并添加音效

将子弹的伤害属性从`damage`重命名为`baseDamage`，并引入`damageMultipliers`数组支持多段伤害
为火山武器添加三段攻击音效并调整伤害倍率
更新相关武器和子弹脚本以适配新的伤害系统

components/Bullets/Volcano.tscn

@@ -1,8 +1,11 @@
-[gd_scene load_steps=20 format=3 uid="uid://8uepi7uql314"]
+[gd_scene load_steps=23 format=3 uid="uid://8uepi7uql314"]
 
 [ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_gd3m7"]
 [ext_resource type="Script" uid="uid://ci5hswfhck5as" path="res://scripts/Contents/Bullets/Volcano.gd" id="2_w1utg"]
 [ext_resource type="Texture2D" uid="uid://ctmxadaowx5ps" path="res://resources/weapons/Volcano.webp" id="2_wwxm2"]
+[ext_resource type="AudioStream" uid="uid://cer3lxbxqw5pq" path="res://resources/sounds/effect/sword1.mp3" id="3_6sp0s"]
+[ext_resource type="AudioStream" uid="uid://cfwu55dfgs4bl" path="res://resources/sounds/effect/sword2.mp3" id="4_1sgli"]
+[ext_resource type="AudioStream" uid="uid://bm2o8hu7nyqh1" path="res://resources/sounds/effect/sword3.mp3" id="5_b5nxd"]
 
 [sub_resource type="Animation" id="Animation_w1utg"]
 length = 0.001
@@ -97,6 +100,18 @@ tracks/7/keys = {
 "points": PackedFloat32Array(1, -0.25, 0, 0.25, 0),
 "times": PackedFloat32Array(0)
 }
+tracks/8/type = "value"
+tracks/8/imported = false
+tracks/8/enabled = true
+tracks/8/path = NodePath("%texture/..:usingDamageMultiplier")
+tracks/8/interp = 1
+tracks/8/loop_wrap = true
+tracks/8/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [0]
+}
 
 [sub_resource type="Animation" id="Animation_oinqg"]
 resource_name = "destroy"
@@ -218,6 +233,41 @@ tracks/8/keys = {
 "method": &"generateShadow"
 }]
 }
+tracks/9/type = "value"
+tracks/9/imported = false
+tracks/9/enabled = true
+tracks/9/path = NodePath("%texture/..:usingDamageMultiplier")
+tracks/9/interp = 1
+tracks/9/loop_wrap = true
+tracks/9/keys = {
+"times": PackedFloat32Array(0, 0.6, 1.2),
+"transitions": PackedFloat32Array(1, 1, 1),
+"update": 1,
+"values": [0, 1, 2]
+}
+tracks/10/type = "audio"
+tracks/10/imported = false
+tracks/10/enabled = true
+tracks/10/path = NodePath("%textureSword/audio")
+tracks/10/interp = 1
+tracks/10/loop_wrap = true
+tracks/10/keys = {
+"clips": [{
+"end_offset": 0.0,
+"start_offset": 0.0,
+"stream": ExtResource("3_6sp0s")
+}, {
+"end_offset": 0.0,
+"start_offset": 0.0,
+"stream": ExtResource("4_1sgli")
+}, {
+"end_offset": 0.0,
+"start_offset": 0.0,
+"stream": ExtResource("5_b5nxd")
+}],
+"times": PackedFloat32Array(0, 0.6, 1.2)
+}
+tracks/10/use_blend = true
 
 [sub_resource type="AnimationLibrary" id="AnimationLibrary_w1utg"]
 _data = {
@@ -308,6 +358,8 @@ scale = Vector2(0.9999999, 0.9999999)
 amount = 200
 process_material = SubResource("ParticleProcessMaterial_xrrxo")
 
+[node name="audio" type="AudioStreamPlayer2D" parent="texture/anchor/textureSword" index="1"]
+
 [node name="hitbox" parent="." index="1"]
 position = Vector2(245.25, 0)
 shape = SubResource("RectangleShape2D_w1utg")