add node to mapping

src/main/kotlin/ltd/hlaeja/util/Mapping.kt

@@ -1,13 +1,31 @@
 package ltd.hlaeja.util
 
 import java.time.ZonedDateTime
+import ltd.hlaeja.entity.NodeEntity
 import ltd.hlaeja.entity.TypeEntity
+import ltd.hlaeja.library.deviceRegistry.Node
 import ltd.hlaeja.library.deviceRegistry.Type
 import org.springframework.http.HttpStatus.EXPECTATION_FAILED
 import org.springframework.web.server.ResponseStatusException
 
 fun Type.Request.toTypeEntity(): TypeEntity = TypeEntity(null, ZonedDateTime.now(), name)
 
-fun TypeEntity.toTypeResponse(): Type.Response {
-    return Type.Response(id ?: throw ResponseStatusException(EXPECTATION_FAILED), name)
-}
+fun TypeEntity.toTypeResponse(): Type.Response = Type.Response(
+    id ?: throw ResponseStatusException(EXPECTATION_FAILED),
+    name,
+)
+
+fun Node.Request.toEntity(): NodeEntity = NodeEntity(
+    null,
+    ZonedDateTime.now(),
+    client,
+    device,
+    name,
+)
+
+fun NodeEntity.toNodeResponse(): Node.Response = Node.Response(
+    id ?: throw ResponseStatusException(EXPECTATION_FAILED),
+    client,
+    device,
+    name,
+)