fix(job): 修复比赛任务中的空指针异常和时间比较逻辑

- 添加了对tournament对象的null检查以防止空指针异常
- 重构了时间比较逻辑 使用局部变量存储当前时间和开始时间
- 优化了时间截断比较方法 提高时间匹配的准确性
- 修正了注释格式 将多行注释合并为单行

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/job/business/TournamentTask.java

@@ -57,16 +57,18 @@ public class TournamentTask {
         List<PhysicalTournamentRuntimeVo> physicalTournamentRuntimeVoList = physicalTournamentRuntimeMapper.selectPhysicalTournamentRuntimeAllList("WAITING");
         for (PhysicalTournamentRuntimeVo runtime : physicalTournamentRuntimeVoList) {
             PhysicalTournamentsVo tournament = tournamentsMapper.selectPhysicalTournamentsByIdInfo(runtime.getTournamentId());
-            //校验状态是否是未开始的 防止重复进入
-
-            // 检查是否到达开始时间
+            if (tournament == null) {
+                continue;
+            }
+            //校验状态是否是未开始的 防止重复进入 // 检查是否到达开始时间
            // 获取 startTime 并转换为 LocalDateTime
             LocalDateTime startTime = tournament.getStartTime().toInstant()
                 .atZone(java.time.ZoneId.systemDefault())
                 .toLocalDateTime();
-            // 比较时间 当前比赛时间是 十一点开始  十一点十分在来跑到这个job  比赛则不能开始了
-            if (startTime.equals(LocalDateTime.now().withSecond(0).withNano(0))) {
-                //操作级别历史记录
+            LocalDateTime currentTime = LocalDateTime.now();
+            LocalDateTime currentRounded = currentTime.withSecond(0).withNano(0);
+            LocalDateTime startRounded = startTime.withSecond(0).withNano(0);
+            if (startRounded.equals(currentRounded)) {   //操作级别历史记录
                 PhysicalTournamentLevelHistory history=new PhysicalTournamentLevelHistory();
                 TournamentBlindStructuresVo tournamentBlindStructuresVo = physicalTournamentBlindStructuresMapper.selectPhysicalTournamentBlindStructureByTournamentId(tournament.getId());
                 PhysicalTournamentRuntime physicalTournamentRuntime=new PhysicalTournamentRuntime();