feat #461: add operational status dashboard

src/main/java/com/cloudhandson/vpdbackoffice/service/OperationStatusService.java

@@ -0,0 +1,20 @@
+package com.cloudhandson.vpdbackoffice.service;
+
+import com.cloudhandson.vpdbackoffice.domain.operation.OperationStatusRow;
+import com.cloudhandson.vpdbackoffice.mapper.OperationStatusMapper;
+import java.util.List;
+import org.springframework.stereotype.Service;
+
+@Service
+public class OperationStatusService {
+
+  private final OperationStatusMapper mapper;
+
+  public OperationStatusService(OperationStatusMapper mapper) {
+    this.mapper = mapper;
+  }
+
+  public List<OperationStatusRow> findRows() {
+    return mapper.findRows();
+  }
+}