feat(武器): 添加鸡毛弓武器及相关箭矢功能

实现鸡毛弓武器系统，包括武器脚本、箭矢脚本和场景配置
修改实体伤害处理逻辑，分离普通伤害和子弹伤害方法
更新公鸡角色配置，添加鸡毛弓作为默认武器

components/Bullets/Arrow.tscn

@@ -1,13 +1,18 @@
-[gd_scene load_steps=4 format=3 uid="uid://wy8wqwhwr4fb"]
+[gd_scene load_steps=5 format=3 uid="uid://wy8wqwhwr4fb"]
 
 [ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_0wuio"]
 [ext_resource type="Texture2D" uid="uid://dadbn306owsy3" path="res://resources/bullets/arrow/arrow.png" id="2_b2ohg"]
+[ext_resource type="Script" uid="uid://u5x40y0cvqq2" path="res://scripts/Contents/Bullets/Arrow.gd" id="2_qddg0"]
 
 [sub_resource type="CircleShape2D" id="CircleShape2D_b2ohg"]
 
 [node name="Arrow" instance=ExtResource("1_0wuio")]
+script = ExtResource("2_qddg0")
 displayName = "鸡毛箭"
+speed = 20.0
+damage = 50.0
 penerate = 1.0
+lifeDistance = 1200.0
 
 [node name="static" type="Sprite2D" parent="texture" index="1"]
 scale = Vector2(0.06775362, 0.06775362)

components/Bullets/Bow.tscn

@@ -1,11 +1,15 @@
-[gd_scene load_steps=3 format=3 uid="uid://c2ga3ktbxdfc5"]
+[gd_scene load_steps=4 format=3 uid="uid://c2ga3ktbxdfc5"]
 
 [ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_t0pyo"]
 [ext_resource type="Texture2D" uid="uid://7us1po711e3o" path="res://resources/weapons/鸡毛弓.png" id="2_two1a"]
+[ext_resource type="Script" uid="uid://dnnxxqpbpwohf" path="res://scripts/Contents/Bullets/Bow.gd" id="2_wtwgr"]
 
 [node name="Bow" instance=ExtResource("1_t0pyo")]
+script = ExtResource("2_wtwgr")
+metadata/_edit_vertical_guides_ = [88.0]
 
 [node name="static" type="Sprite2D" parent="texture" index="1"]
+position = Vector2(150, 0)
 scale = Vector2(0.055427626, 0.055427626)
 texture = ExtResource("2_two1a")