fix: 修正 FetchCountryLeaderboard 函数中的偏移量处理逻辑，确保分页计算从1开始以提高准确性

service/scoresaber/user_info.go

@@ -140,10 +140,10 @@ type LeaderboardData struct {
 
 func FetchCountryLeaderboard(country string, offset int, ssID string) (LeaderboardData, error) {
 	// 根据偏移量计算页数
-	if offset < 0 {
-		offset = 0
+	if offset < 1 {
+		offset = 1
 	}
-	page := offset / 50
+	page := (offset-1)/50 + 1
 	url := fmt.Sprintf("https://scoresaber.com/api/players?countries=%s&page=%d", country, page)
 
 	// 创建请求