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/walk5_2.anim

@@ -0,0 +1,198 @@
+[
+  {
+    "__type__": "cc.AnimationClip",
+    "_name": "walk",
+    "_objFlags": 0,
+    "__editorExtras__": {
+      "embeddedPlayerGroups": []
+    },
+    "_native": "",
+    "sample": 20,
+    "speed": 1,
+    "wrapMode": 2,
+    "enableTrsBlending": false,
+    "_duration": 1.25,
+    "_hash": 500763545,
+    "_tracks": [
+      {
+        "__id__": 1
+      }
+    ],
+    "_exoticAnimation": null,
+    "_events": [],
+    "_embeddedPlayers": [],
+    "_additiveSettings": {
+      "__id__": 6
+    },
+    "_auxiliaryCurveEntries": []
+  },
+  {
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+      "proxy": null
+    },
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+    }
+  },
+  {
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+    "_paths": [
+      {
+        "__id__": 3
+      },
+      "spriteFrame"
+    ]
+  },
+  {
+    "__type__": "cc.animation.ComponentPath",
+    "component": "cc.Sprite"
+  },
+  {
+    "__type__": "cc.animation.Channel",
+    "_curve": {
+      "__id__": 5
+    }
+  },
+  {
+    "__type__": "cc.ObjectCurve",
+    "_times": [
+      0,
+      0.05,
+      0.1,
+      0.15,
+      0.2,
+      0.25,
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+      0.35,
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+      0.45,
+      0.5,
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+      1.2
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+  }
+]