feat(武器): 添加河豚刺针武器及其相关资源

新增河豚刺针武器，包含以下内容：
- 添加河豚武器图标和音效资源
- 实现Needle子弹类及其反弹逻辑
- 创建Hetun武器类实现散射攻击
- 添加子弹特效和碰撞检测
- 更新公鸡角色默认武器配置

components/Weapons/Hetun.tscn

@@ -0,0 +1,34 @@
+[gd_scene load_steps=4 format=3 uid="uid://c65tbxm3tclw0"]
+
+[ext_resource type="PackedScene" uid="uid://ckq2cq6m23hq3" path="res://components/Abstracts/WeaponCardBase.tscn" id="1_021hd"]
+[ext_resource type="Script" uid="uid://tfptal3sgfmy" path="res://scripts/Contents/Weapons/Hetun.gd" id="2_t2ywh"]
+[ext_resource type="Texture2D" uid="uid://c1xrf8255jafi" path="res://resources/weapons/hetun.png" id="2_y0xe1"]
+
+[node name="Hetun" instance=ExtResource("1_021hd")]
+script = ExtResource("2_t2ywh")
+avatarTexture = ExtResource("2_y0xe1")
+displayName = "河豚"
+quality = 0
+store = {
+"atk": 15,
+"count": 10,
+"penerate": 0.2
+}
+storeType = {
+"atk": 1,
+"count": 1,
+"penerate": 2
+}
+descriptionTemplate = "散射5~$count针[b]河豚刺针[/b]，每根针造成$atk点伤害，撞上敌人后有$penerate概率反弹。"
+cooldown = 2000.0
+debugRebuild = true
+
+[node name="avatar" parent="container/info" index="0"]
+texture = ExtResource("2_y0xe1")
+
+[node name="name" parent="container/info" index="2"]
+displayName = "河豚"
+quality = 0
+
+[node name="description" parent="container" index="2"]
+text = "[center]散射5~[color=cyan]10[/color]针[b]河豚刺针[/b]，每根针造成[color=cyan]15[/color]点伤害，撞上敌人后有[color=cyan]20.0%[/color]概率反弹。[/center]"