fix(competition): 修复赛事详情页面报名人数显示为0的问题

src/main/java/org/springblade/modules/martial/controller/MartialCompetitionController.java

@@ -42,6 +42,13 @@ public class MartialCompetitionController extends BladeController {
 	@Operation(summary = "详情", description = "传入ID")
 	public R<MartialCompetition> detail(@RequestParam Long id) {
 		MartialCompetition detail = competitionService.getById(id);
+		if (detail != null) {
+			Long cnt = martialAthleteService.count(Wrappers.<MartialAthlete>query().lambda()
+				.eq(MartialAthlete::getCompetitionId, detail.getId())
+				.eq(MartialAthlete::getIsDeleted, 0)
+			);
+			detail.setTotalParticipants(cnt.intValue());
+		}
 		return R.data(detail);
 	}