feat(skill): 添加彩色箭头技能资源及配置

- 新增红、蓝、绿三种箭头技能的prefab和动画资源
- 更新技能配置文件和英雄设置
- 调整水球技能物理参数
- 优化碰撞矩阵设置
- 修复动画时间精度问题

assets/resources/game/skill/atk/b_arrow_green.prefab.meta

@@ -0,0 +1,13 @@
+{
+  "ver": "1.1.50",
+  "importer": "prefab",
+  "imported": true,
+  "uuid": "a2517b43-21fd-458f-ab93-af99198e3f98",
+  "files": [
+    ".json"
+  ],
+  "subMetas": {},
+  "userData": {
+    "syncNodeName": "b_arrow_green"
+  }
+}