feat(region): add host count when list wires

pkg/apis/compute/wire.go

@@ -44,7 +44,9 @@ type WireDetails struct {
 	// IP子网数量
 	// example: 1
 	Networks int `json:"networks"`
-	// VPC名称
+	// Host数量
+	// example: 1
+	HostCount int `json:"host_count"`
 }
 
 type WireResourceInfoBase struct {

pkg/compute/models/wires.go

@@ -1283,6 +1283,7 @@ func (manager *SWireManager) FetchCustomizeColumns(
 		}
 		wire := objs[i].(*SWire)
 		rows[i].Networks, _ = wire.NetworkCount()
+		rows[i].HostCount, _ = wire.HostCount()
 	}
 
 	return rows