feat(角色): 增强KukeMC角色属性和攻击模式

- 增加KukeMC的最大生命值和移动速度
- 调整攻击冷却时间和射击偏移量
- 实现跟随BOSS的AI行为
- 修改紫水晶子弹的生成数量和位置
- 为武器节点添加normal锚点

components/Bullets/PurpleCrystal.tscn

@@ -19,12 +19,12 @@ animations = [{
 
 [node name="PurpleCrystal" instance=ExtResource("1_45mh7")]
 script = ExtResource("2_4lnlm")
+displayName = "紫水晶"
 lifeDistance = 700.0
 
 [node name="texture" parent="." index="0"]
-position = Vector2(22, 0)
 sprite_frames = SubResource("SpriteFrames_r86b3")
 
 [node name="hitbox" parent="." index="1"]
-position = Vector2(36, 0)
+position = Vector2(-33, 0)
 shape = SubResource("CircleShape2D_ty1as")

components/Characters/KukeMC.tscn

@@ -37,5 +37,7 @@ animation = &"walk"
 [node name="hitbox" parent="texture/hurtbox" index="0"]
 shape = SubResource("RectangleShape2D_farlp")
 
+[node name="normal" type="Node2D" parent="texture/weapons" index="0"]
+
 [node name="statebar" parent="." index="3"]
 position = Vector2(0, -140)