파일 업로드 스케쥴링 구현

암호화는 동시에 최대 4개까지, 업로드는 1개까지 가능하도록 설정했습니다.

src/lib/stores/file.ts

@@ -1,4 +1,4 @@
-import type { Writable } from "svelte/store";
+import { writable, type Writable } from "svelte/store";
 
 export type DirectoryInfo =
   | {
@@ -29,6 +29,24 @@ export interface FileInfo {
   lastModifiedAt: Date;
 }
 
+export interface FileUploadStatus {
+  name: string;
+  parentId: "root" | number;
+  status:
+    | "encryption-pending"
+    | "encrypting"
+    | "upload-pending"
+    | "uploading"
+    | "uploaded"
+    | "canceled"
+    | "error";
+  progress?: number;
+  rate?: number;
+  estimated?: number;
+}
+
 export const directoryInfoStore = new Map<"root" | number, Writable<DirectoryInfo | null>>();
 
 export const fileInfoStore = new Map<number, Writable<FileInfo | null>>();
+
+export const fileUploadStatusStore = writable<Writable<FileUploadStatus>[]>([]);