feat(武器系统): 重构LGBT武器和子弹逻辑

- 修改BulletBase.generate返回子弹实例数组而非数量
- 新增LGBTBoom特效场景
- 降低LGBT武器能量消耗从150降至10
- 移除Rooster角色的攻击方法，改为使用武器系统
- 重构LGBT子弹追踪逻辑，增加追踪时间和效率参数
- 在LGBT武器攻击时设置子弹伤害和追踪目标

scripts/Contents/Bullets/LGBTBullet.gd

@@ -1,10 +1,10 @@
 extends BulletBase
 class_name LGBTBullet
 
-var myTracer: EntityBase = null
+var tracer: EntityBase = null
+var maxTraceTime: float = 0
+var tracePower: float
 
-func spawn():
-	findTracer()
 func register():
 	speed = 1
 	damage = 5
@@ -12,10 +12,6 @@ func ai():
 	texture.rotation_degrees += speed
 	speed *= 1.05
 	speed = clamp(speed, 0, 20)
-	if is_instance_valid(myTracer):
-		PresetAIs.trace(self, myTracer.position, clamp(speed / 150, 0, 1))
-	else:
-		findTracer()
+	if is_instance_valid(tracer) and timeLived() < maxTraceTime:
+		PresetAIs.trace(self, tracer.position, clamp(speed / 50 * tracePower, 0, 1))
 	PresetAIs.forward(self, rotation)
-func findTracer():
-	myTracer = EntityTool.findClosetEntity(position, get_tree(), false, true)