add :: ChangePendingToNowService 추가

src/main/java/com/mindway/server/v2/domain/event/service/ChangePendingToNowService.java

@@ -0,0 +1,5 @@
+package com.mindway.server.v2.domain.event.service;
+
+public interface ChangePendingToNowService {
+    void execute();
+}

src/main/java/com/mindway/server/v2/domain/event/service/impl/ChangePendingToNowServiceImpl.java

@@ -0,0 +1,36 @@
+package com.mindway.server.v2.domain.event.service.impl;
+
+import com.mindway.server.v2.domain.event.entity.Event;
+import com.mindway.server.v2.domain.event.entity.Status;
+import com.mindway.server.v2.domain.event.repository.EventRepository;
+import com.mindway.server.v2.domain.event.service.ChangePendingToNowService;
+import com.mindway.server.v2.global.annotation.ServiceWithTransaction;
+import lombok.RequiredArgsConstructor;
+
+import java.time.LocalDate;
+import java.util.List;
+import java.util.Objects;
+
+
+@ServiceWithTransaction
+@RequiredArgsConstructor
+public class ChangePendingToNowServiceImpl implements ChangePendingToNowService {
+
+    private final EventRepository eventRepository;
+
+    public void execute() {
+        List<Event> pendingEvents = eventRepository.findByStatus(Status.PENDING);
+
+        for (Event event: pendingEvents) {
+            if (Objects.equals(event.getStarted_at(), LocalDate.now())) {
+                saveChangeNow(event);
+            }
+        }
+    }
+
+    private void saveChangeNow(Event event) {
+        event.changeStatus(Status.NOW);
+
+        eventRepository.save(event);
+    }
+}