feat(角色): 添加Gobo角色及相关资源

添加Gobo角色，包括武器、召唤物和治疗导弹功能
- 新增Gobo角色模型和动画资源
- 实现Gobo武器系统，可召唤Gobo单位
- 添加治疗导弹功能，Gobo受伤时会发射治疗友军
- 优化实体基础类，添加生命值初始化方法
- 修改子弹伤害判定逻辑，支持友军伤害设置

components/Characters/Rooster.tscn

@@ -1,8 +1,9 @@
-[gd_scene load_steps=14 format=3 uid="uid://dky8574uqc18r"]
+[gd_scene load_steps=15 format=3 uid="uid://dky8574uqc18r"]
 
 [ext_resource type="PackedScene" uid="uid://cvogxi7mktumf" path="res://components/Abstracts/EntityBase.tscn" id="1_e5pl8"]
 [ext_resource type="Script" uid="uid://cthtupc6dtbav" path="res://scripts/Contents/Characters/Rooster.gd" id="2_oqdqd"]
 [ext_resource type="PackedScene" uid="uid://dldnbpubu2jgm" path="res://components/Weapons/GrassWall.tscn" id="3_0omr3"]
+[ext_resource type="PackedScene" uid="uid://blwoev5sencdh" path="res://components/Weapons/Gobo.tscn" id="3_jluqw"]
 [ext_resource type="PackedScene" uid="uid://c0n3igy4hucrg" path="res://components/Weapons/PurpleCrystal.tscn" id="3_joj4g"]
 [ext_resource type="AudioStream" uid="uid://cdrevrq7n6yqa" path="res://resources/sounds/effect/Boing.mp3" id="4_66s6c"]
 [ext_resource type="AudioStream" uid="uid://benyec5bqni0b" path="res://resources/sounds/effect/Chomp.wav" id="4_k0yme"]
@@ -59,10 +60,13 @@ metadata/_edit_vertical_guides_ = [71.0]
 [node name="weaponStore" parent="." index="1"]
 process_mode = 4
 
-[node name="PurpleCrystal" parent="weaponStore" index="0" instance=ExtResource("3_joj4g")]
+[node name="Gobo" parent="weaponStore" index="0" instance=ExtResource("3_jluqw")]
+offset_bottom = 446.0
+
+[node name="PurpleCrystal" parent="weaponStore" index="1" instance=ExtResource("3_joj4g")]
 offset_bottom = 350.0
 
-[node name="GrassWall" parent="weaponStore" index="1" instance=ExtResource("3_0omr3")]
+[node name="GrassWall" parent="weaponStore" index="2" instance=ExtResource("3_0omr3")]
 
 [node name="sprint" parent="sounds" index="0"]
 stream = ExtResource("4_66s6c")