feat(游戏结束): 添加子弹显示名称并改进死亡信息显示

- 为所有子弹类型添加displayName属性用于显示
- 修改GameOver面板显示死亡原因，包含子弹名称和发射者
- 更新死亡原因文本格式为富文本样式
- 移除GameOver面板中多余的LabelSettings资源

components/Bullets/BossAttack/Bear/ArrowSeven.tscn

@@ -122,6 +122,7 @@ alpha_curve = SubResource("CurveTexture_wjo54")
 position = Vector2(-34, -24)
 script = ExtResource("2_uqsop")
 allColor = SubResource("GradientTexture1D_e0qv5")
+displayName = "七彩矢"
 autoLoopAnimation = true
 
 [node name="texture" parent="." index="0"]

components/Bullets/BossAttack/Bear/ForeverRainbow.tscn

@@ -133,6 +133,7 @@ height = 86.0
 [node name="ForeverRainbow" instance=ExtResource("1_sltl7")]
 script = ExtResource("2_wwmq8")
 allColor = SubResource("GradientTexture1D_gcnu1")
+displayName = "永恒彩虹"
 lifeTime = 11000.0
 indisDamage = true
 autoSpawnAnimation = true

components/Bullets/BossAttack/Bear/SunDance.tscn

@@ -120,6 +120,7 @@ modulate = Color(1, 1, 1, 0)
 scale = Vector2(1e-05, 1e-05)
 script = ExtResource("2_0kdtj")
 allColor = SubResource("GradientTexture1D_ikq3n")
+displayName = "太阳舞"
 autoSpawnAnimation = true
 freeAfterSpawn = true