fix: 서비스 클래스 NotificationPublisher/NotificationEvent import 누락 수정 (컴파일 에러 해결)

backend/src/main/java/com/srsystem/service/DispatchHistoryService.java

@@ -1,11 +1,14 @@
 package com.srsystem.service;
 
 import com.srsystem.dto.CreateDispatchRequest;
+import com.srsystem.dto.NotificationEvent;
 import com.srsystem.entity.DispatchHistory;
 import com.srsystem.entity.Employee;
 import com.srsystem.entity.Project;
+import com.srsystem.entity.enums.DispatchStatus;
 import com.srsystem.exception.BusinessException;
 import com.srsystem.exception.ErrorCode;
+import com.srsystem.listener.NotificationPublisher;
 import com.srsystem.repository.DispatchHistoryRepository;
 import com.srsystem.repository.EmployeeRepository;
 import com.srsystem.repository.ProjectRepository;
@@ -82,11 +85,11 @@ public class DispatchHistoryService {
         DispatchHistory saved = dispatchHistoryRepository.save(history);
 
         // Update employee dispatch status to DISPATCHED
-        employee.setDispatchStatus(com.srsystem.entity.enums.DispatchStatus.DISPATCHED);
+        employee.setDispatchStatus(DispatchStatus.DISPATCHED);
         employeeRepository.save(employee);
 
         // Send notification
-        notificationPublisher.publish(new com.srsystem.dto.NotificationEvent(
+        notificationPublisher.publish(new NotificationEvent(
                 "DISPATCH_ASSIGNED",
                 "신규 파견 발령: " + project.getProjectName(),
                 String.format("'%s' 프로젝트에 %s 역할로 파견 등록되었습니다.", project.getProjectName(), request.roleTitle()),
@@ -108,7 +111,7 @@ public class DispatchHistoryService {
         List<DispatchHistory> active = dispatchHistoryRepository.findByEmployee_EmpIdAndEndDateIsNull(history.getEmployee().getEmpId());
         if (active.isEmpty()) {
             Employee emp = history.getEmployee();
-            emp.setDispatchStatus(com.srsystem.entity.enums.DispatchStatus.WAITING);
+            emp.setDispatchStatus(DispatchStatus.WAITING);
             employeeRepository.save(emp);
         }