feat(角色): 为KukeMC添加重型紫水晶攻击技能

- 新增HeavyCrystal.gd脚本实现重型紫水晶子弹逻辑
- 在KukeMC角色中添加type=3的攻击类型
- 调整子弹场景配置，增加粒子特效和碰撞检测
- 移除旧的生成子角色和随机水晶攻击逻辑

components/Bullets/BossAttack/KukeMC/HeavyCrystal.tscn

@@ -1,9 +1,10 @@
-[gd_scene load_steps=10 format=3 uid="uid://dxd6ikymj0fge"]
+[gd_scene load_steps=14 format=3 uid="uid://dxd6ikymj0fge"]
 
 [ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_mf7ha"]
 [ext_resource type="Script" path="res://scripts/Statemachine/ShaderStage.gd" id="2_75div"]
 [ext_resource type="Texture2D" uid="uid://c7hyatbuieaj" path="res://resources/bullets/purple-crystal/frames/0.svg" id="2_ghoc2"]
 [ext_resource type="Shader" path="res://shaders/Ring.gdshader" id="2_utujj"]
+[ext_resource type="Script" path="res://scripts/Contents/Bullets/BossAttack/KukeMC/HeavyCrystal.gd" id="2_ygemv"]
 
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_1i43q"]
 shader = ExtResource("2_utujj")
@@ -101,19 +102,53 @@ _data = {
 "spawn": SubResource("Animation_qobcv")
 }
 
+[sub_resource type="Curve" id="Curve_g11yl"]
+_data = [Vector2(0, 1), 0.0, 0.0, 0, 0, Vector2(1, 0), 0.0, 0.0, 0, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_inkfe"]
+curve = SubResource("Curve_g11yl")
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_hgwnm"]
+particle_flag_disable_z = true
+direction = Vector3(-1, 0, 0)
+spread = 0.0
+initial_velocity_min = 300.0
+initial_velocity_max = 300.0
+gravity = Vector3(0, 0, 0)
+alpha_curve = SubResource("CurveTexture_inkfe")
+
 [node name="HeavyCrystal" instance=ExtResource("1_mf7ha")]
+script = ExtResource("2_ygemv")
+displayName = "重型紫水晶"
+speed = 0.0
+damage = 20.0
+lifeTime = 2000.0
 
 [node name="track" type="Node2D" parent="." index="0"]
+unique_name_in_owner = true
 material = SubResource("ShaderMaterial_1i43q")
 script = ExtResource("2_75div")
 size = Vector2(150, 150)
 color = Color(0.451438, 0.278306, 1.44392e-07, 1)
 
 [node name="texture" parent="." index="1"]
-position = Vector2(73, 0)
+position = Vector2(95, 0)
+scale = Vector2(1.5, 1.5)
 sprite_frames = SubResource("SpriteFrames_e150r")
 
 [node name="animator" parent="texture" index="0"]
 libraries = {
 "": SubResource("AnimationLibrary_mdce7")
 }
+
+[node name="trail" type="GPUParticles2D" parent="texture" index="1"]
+unique_name_in_owner = true
+z_index = -1
+amount = 10
+process_material = SubResource("ParticleProcessMaterial_hgwnm")
+texture = ExtResource("2_ghoc2")
+local_coords = true
+
+[node name="hitbox" parent="." index="2"]
+position = Vector2(60, 0)