update: add zustand store and basic setup

src/types/cfg.ts

@@ -0,0 +1,21 @@
+import { AdvancedListItem } from "@/types/common"
+
+export interface File {
+  dir: string
+  filename: string
+  format: "cfg" | "vcfg" | "txt" | "zip"
+  createTime: number
+  updateTime: number
+  size: number
+}
+
+export interface Owner {
+  ownerSteamId64: string
+  ownerSteamName: string
+  ownerToolboxId: string
+  ownerToolboxName: string
+}
+
+export interface CfgBackup extends File, Owner {}
+
+export interface Cfg extends File, AdvancedListItem {}