feat(player, i18n): add error code mappings and back to main site button

1. 新增8001-8005业务错误码的国际化翻译与映射
2. 增加返回主站按钮，根据环境变量显示
3. 重构错误码匹配逻辑，复用常量对象

src/i18n/locales/zh/entry.json

@@ -37,7 +37,8 @@
       "check": "检查项",
       "reason": "原因"
     },
-    "reenter": "重新进入"
+    "reenter": "重新进入",
+    "backToMainSite": "返回主站"
   },
   "success": {
     "title": "授权成功！",
@@ -60,6 +61,11 @@
     "tryLater": "请稍后再试",
     "http401": "令牌无效或已过期",
     "http403": "账号已被封禁",
-    "http404": "系统中未找到该账号"
+    "http404": "系统中未找到该账号",
+    "player8001": "缺少或非法的授权凭证",
+    "player8002": "Token 无效、已过期或不符合时效（如有效窗超过 5 分钟/缺少必填字段）",
+    "player8003": "玩家未注册（仅开发 Token）",
+    "player8004": "彩票服务端未配置 SSO",
+    "player8005": "账号已冻结或不可用"
   }
 }