feat: add experimental fdp (#681)

* feat: add experimental fdp

* ci: update swarm-actions to v1

* fix: fix eslint violations

* refactor: decaf

src/react-fs/CafeReactType.ts

@@ -0,0 +1,26 @@
+export enum FsItemType {
+  FILE = 'file',
+  DIRECTORY = 'directory',
+}
+
+export interface VirtualFile {
+  id: string | number
+  name: string
+  $type: FsItemType.FILE
+}
+
+export interface VirtualDirectory {
+  id: string | number
+  name: string
+  $type: FsItemType.DIRECTORY
+}
+
+export type FsItem = VirtualFile | VirtualDirectory
+
+export function isVirtualFile(item: FsItem): item is VirtualFile {
+  return item.$type === FsItemType.FILE
+}
+
+export function isVirtualDirectory(item: FsItem): item is VirtualDirectory {
+  return item.$type === FsItemType.DIRECTORY
+}