```

feat(gameplay): 实现护盾系统和强化增益选择机制

- 新增护盾功能，包括护盾数值显示和护盾条UI
- 重构盾卫技能，实现坚固壁垒技能效果
- 添加暴击率、吸血率等战斗属性
- 优化增益选择界面，新增传奇品质和刷新机制
- 调整材质纹理和文字着色器效果
- 修复金币显示格式问题
```

Assets/Materials/CoreBattleGround.mat

@@ -46,7 +46,7 @@ Material:
         m_Scale: {x: 3, y: 4}
         m_Offset: {x: 0, y: 0}
     - _MainTex:
-        m_Texture: {fileID: 2800000, guid: 594180e608ded448d8751c39bca40633, type: 3}
+        m_Texture: {fileID: 2800000, guid: b424ea763d6a34320bae85b1d85ef820, type: 3}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
     - _MetallicGlossMap:

Assets/Materials/UI/GoldTextMaterial.mat

@@ -30,13 +30,15 @@ Material:
     m_Ints: []
     m_Floats:
     - _ColorMask: 15
+    - _MidPoint: 0.5
     - _Stencil: 0
     - _StencilComp: 8
     - _StencilOp: 0
     - _StencilReadMask: 255
     - _StencilWriteMask: 255
     m_Colors:
-    - _BottomColor: {r: 0.88, g: 0.58, b: 0.08, a: 1}
+    - _BottomColor: {r: 1, g: 0.8272859, b: 0.62578607, a: 1}
     - _Color: {r: 1, g: 1, b: 1, a: 1}
-    - _TopColor: {r: 1, g: 0.96, b: 0.65, a: 1}
+    - _MiddleColor: {r: 1, g: 0.8353073, b: 0.35534585, a: 1}
+    - _TopColor: {r: 1, g: 0.98, b: 0.93, a: 1}
   m_BuildTextureStacks: []