refactor(武器系统): 重构火山武器和火扫弹攻击机制

移除火扫弹的独立脚本和火罐效果，改为直接在子弹中实现
火山武器改为三段伤害机制并调整基础伤害值
添加子弹基础伤害乘数数组支持多段伤害
更新相关场景和资源配置以匹配新机制

components/Characters/Chick.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=15 format=3 uid="uid://b0ncrvm8u4pox"]
+[gd_scene load_steps=14 format=3 uid="uid://b0ncrvm8u4pox"]
 
 [ext_resource type="PackedScene" uid="uid://cvogxi7mktumf" path="res://components/Abstracts/EntityBase.tscn" id="1_goqmy"]
 [ext_resource type="Script" uid="uid://b2gg1fh0bflu7" path="res://scripts/Contents/Characters/Chick.gd" id="2_r6bub"]
@@ -7,7 +7,6 @@
 [ext_resource type="AudioStream" uid="uid://b10u6iir6uvqn" path="res://resources/sounds/effect/BigLaser.wav" id="4_mrsne"]
 [ext_resource type="AudioStream" uid="uid://bf34p3xnsosgj" path="res://resources/sounds/effect/Dun Dun Dunnn.wav" id="4_w0sit"]
 [ext_resource type="AudioStream" uid="uid://cee6rxv2uqynh" path="res://resources/sounds/effect/Flame.ogg" id="5_vcsbb"]
-[ext_resource type="PackedScene" uid="uid://dny25qkcvtaa2" path="res://components/Effects/FirePot.tscn" id="6_kvx3n"]
 [ext_resource type="AudioStream" uid="uid://dn6bijr513wyp" path="res://resources/sounds/effect/Drum Boing.wav" id="7_qjhwc"]
 [ext_resource type="Texture2D" uid="uid://k0hcr5u2xlk6" path="res://resources/characters/chick/fox.png" id="8_k8ox8"]
 
@@ -100,9 +99,6 @@ shape = SubResource("CircleShape2D_w0sit")
 [node name="normal" type="Node2D" parent="texture/weapons" index="0"]
 position = Vector2(134, -130)
 
-[node name="firepot" parent="texture/weapons/normal" index="0" instance=ExtResource("6_kvx3n")]
-unique_name_in_owner = true
-
 [node name="foot" type="Node2D" parent="texture/weapons" index="1"]
 position = Vector2(56, 28)