refactor(武器系统): 重构Gobo武器行为并移除治疗导弹

删除HealingMissle相关文件，修改Gobo武器行为
Gobo现在会在受到伤害时生成苹果而非发射治疗导弹
更新武器描述和属性以匹配新行为
调整Rooster角色的武器配置

components/Bullets/HealingMissle.tscn

@@ -1,27 +0,0 @@
-[gd_scene load_steps=5 format=3 uid="uid://ds6yxgj6r8f4v"]
-
-[ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_1wl5l"]
-[ext_resource type="Texture2D" uid="uid://dpvk6pja35rdb" path="res://resources/items/apple-white.png" id="2_0jb7f"]
-[ext_resource type="Script" uid="uid://d2ubbdwexom6t" path="res://scripts/Contents/Bullets/HealingMissle.gd" id="2_nxr84"]
-
-[sub_resource type="SpriteFrames" id="SpriteFrames_nxr84"]
-animations = [{
-"frames": [{
-"duration": 1.0,
-"texture": ExtResource("2_0jb7f")
-}],
-"loop": true,
-"name": &"default",
-"speed": 5.0
-}]
-
-[node name="HealingMissle" instance=ExtResource("1_1wl5l")]
-script = ExtResource("2_nxr84")
-speed = 1.0
-lifeTime = 5000.0
-allowFriendlyDamage = true
-
-[node name="texture" parent="." index="0"]
-modulate = Color(0.0068707466, 1, 0, 1)
-scale = Vector2(0.44360867, 0.44360867)
-sprite_frames = SubResource("SpriteFrames_nxr84")