feat(战斗系统): 添加新武器"树"及其配套子弹和特效

实现新的近战武器"树"，包含以下内容：
- 添加武器Tree.gd脚本及场景资源
- 新增Parrier子弹类型，支持子弹碰撞检测和反弹效果
- 添加武器攻击音效和子弹命中特效
- 修改BulletBase.gd以支持子弹间碰撞逻辑
- 更新角色预设装备新武器

scripts/Contents/Bullets/Parrier.gd

@@ -0,0 +1,10 @@
+extends BulletBase
+class_name ParrierBullet
+
+func hitBullet(bullet: BulletBase):
+	if BulletTool.canDamage(bullet, launcher):
+		EffectController.create(ComponentManager.getEffect("Parry"), position).shot()
+		bullet.tryDestroy()
+		tryDestroy()
+func ai():
+	PresetBulletAI.forward(self , rotation)

scripts/Contents/Bullets/Parrier.gd.uid

@@ -0,0 +1 @@
+uid://bi7nde2rs0w4m

scripts/Contents/Weapons/Tree.gd

@@ -0,0 +1,13 @@
+@tool
+extends Weapon
+
+func attack(entity: EntityBase):
+	for bullet in BulletBase.generate(
+		ComponentManager.getBullet("Parrier"),
+		entity,
+		entity.findWeaponAnchor("normal"),
+		entity.findWeaponAnchor("normal").angle_to_point(get_global_mouse_position()),
+	):
+		if bullet is ParrierBullet:
+			pass
+	return true

scripts/Contents/Weapons/Tree.gd.uid

@@ -0,0 +1 @@
+uid://bqdyhwcd4jwmj

scripts/Statemachine/BulletBase.gd

@@ -51,11 +51,6 @@ func _ready():
 	spawnInWhere = position
 	spawn()
 	dotLoop()
-	if autoSpawnAnimation:
-		animator.play("spawn")
-		await animator.animation_finished
-		if freeAfterSpawn:
-			tryDestroy()
 	if autoLoopAnimation:
 		animator.play("loop")
 	if autoPlayTexture:
@@ -66,7 +61,18 @@ func _ready():
 				if autoDestroyOnHitMap:
 					tryDestroy(true)
 	)
+	area_entered.connect(
+		func(body):
+			var bullet = BulletTool.fromArea(body)
+			if is_instance_valid(bullet):
+				hitBullet(bullet)
+	)
 	ai()
+	if autoSpawnAnimation:
+		animator.play("spawn")
+		await animator.animation_finished
+		if freeAfterSpawn:
+			tryDestroy()
 func _process(_delta: float) -> void:
 	if destroying: return
 	if lifeTime > 0:
@@ -218,6 +224,8 @@ func split(newBullet: BulletBase, _index: int, _total: int, _lastBullet: float):
 	return newBullet
 func refract(newBullet: BulletBase, _entity: EntityBase, _index: int, _total: int, _lastBullet: float):
 	return newBullet
+func hitBullet(_bullet: BulletBase):
+	pass
 
 static func generate(
 		bullet: PackedScene,