feat(武器系统): 添加七魂武器及相关资源

添加七魂武器系统，包括：
- 七魂武器脚本和场景
- 灵魂子弹脚本和场景
- 相关图片资源和音效
- 修改公鸡角色的武器配置
- 修复子弹基础类的UI状态检测问题

components/Bullets/SevenSoul.tscn

@@ -0,0 +1,18 @@
+[gd_scene load_steps=4 format=3 uid="uid://bymprh2qel2oj"]
+
+[ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_c4fl5"]
+[ext_resource type="Script" path="res://scripts/Contents/Bullets/SevenSoul.gd" id="2_egs34"]
+[ext_resource type="Texture2D" uid="uid://wy10fc3bqppg" path="res://resources/bullets/seven-soul/soul.png" id="2_itucu"]
+
+[node name="SevenSoul" instance=ExtResource("1_c4fl5")]
+script = ExtResource("2_egs34")
+lifeTime = 10000.0
+
+[node name="heart" type="Sprite2D" parent="texture" index="1"]
+unique_name_in_owner = true
+position = Vector2(100, 0)
+scale = Vector2(1.5, 1.5)
+texture = ExtResource("2_itucu")
+
+[node name="hitbox" parent="." index="1"]
+disabled = true

components/Bullets/SoulBall.tscn

@@ -0,0 +1,57 @@
+[gd_scene load_steps=10 format=3 uid="uid://lwmu85w7c0d4"]
+
+[ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_1gpjv"]
+[ext_resource type="Script" path="res://scripts/Contents/Bullets/SoulBall.gd" id="2_eaa43"]
+[ext_resource type="Texture2D" uid="uid://b8w31dkev8nc8" path="res://resources/bullets/seven-soul/soul-red.png" id="2_fmlef"]
+
+[sub_resource type="SpriteFrames" id="SpriteFrames_5be2f"]
+animations = [{
+"frames": [{
+"duration": 1.0,
+"texture": ExtResource("2_fmlef")
+}],
+"loop": true,
+"name": &"default",
+"speed": 5.0
+}]
+
+[sub_resource type="Curve" id="Curve_fxg5q"]
+_data = [Vector2(0, 0.75), 0.0, 0.0, 0, 0, Vector2(1, 0), 0.0, 0.0, 0, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_5wobk"]
+curve = SubResource("Curve_fxg5q")
+
+[sub_resource type="Curve" id="Curve_orogq"]
+_data = [Vector2(0, 1), 0.0, 0.0, 0, 0, Vector2(1, 0.5), 0.0, 0.0, 0, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_pftyf"]
+curve = SubResource("Curve_orogq")
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_vwon6"]
+particle_flag_disable_z = true
+direction = Vector3(-1, 0, 0)
+spread = 0.0
+gravity = Vector3(0, 0, 0)
+scale_curve = SubResource("CurveTexture_pftyf")
+alpha_curve = SubResource("CurveTexture_5wobk")
+
+[node name="SoulBall" instance=ExtResource("1_1gpjv")]
+script = ExtResource("2_eaa43")
+displayName = "灵魂"
+speed = 25.0
+damage = 1.5
+lifeTime = 1000.0
+
+[node name="texture" parent="." index="0"]
+sprite_frames = SubResource("SpriteFrames_5be2f")
+
+[node name="trail" type="GPUParticles2D" parent="texture" index="1"]
+amount = 10
+process_material = SubResource("ParticleProcessMaterial_vwon6")
+texture = ExtResource("2_fmlef")
+lifetime = 0.5
+
+[node name="hitbox" parent="." index="1"]
+visible = false