fix: 修正 FetchCountryLeaderboard 函数中的分页计算逻辑，确保正确计算页面编号

service/scoresaber/user_info.go

@@ -143,7 +143,7 @@ func FetchCountryLeaderboard(country string, offset int, ssID string) (Leaderboa
 	if offset < 0 {
 		offset = 0
 	}
-	page := offset/50 + 1
+	page := offset / 50
 	url := fmt.Sprintf("https://scoresaber.com/api/players?countries=%s&page=%d", country, page)
 
 	// 创建请求