feat(player): 改进玩家动画系统，支持四方向动画

- 添加新的动画文件支持上下左右四个方向的站立和行走动画
- 重构PlayerDirection枚举，支持左上、左下、右上、右下四个象限
- 优化动画切换逻辑，增加动画候选机制和兜底策略
- 改进方向判断算法，基于移动增量精确计算朝向
- 移除BonusWuqi相关资源和节点引用
- 更新场景文件，添加新动画剪辑引用

assets/bundle1/anim/player/2/walk/walk3_2.anim

@@ -0,0 +1,198 @@
+[
+  {
+    "__type__": "cc.AnimationClip",
+    "_name": "walk3_2",
+    "_objFlags": 0,
+    "__editorExtras__": {
+      "embeddedPlayerGroups": []
+    },
+    "_native": "",
+    "sample": 25,
+    "speed": 1,
+    "wrapMode": 2,
+    "enableTrsBlending": false,
+    "_duration": 1.04,
+    "_hash": 500763545,
+    "_tracks": [
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+    "_exoticAnimation": null,
+    "_events": [],
+    "_embeddedPlayers": [],
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+      },
+      "spriteFrame"
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+  },
+  {
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+    "component": "cc.Sprite"
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+  {
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