feat: T-023 프로젝트 환경설정 및 초기 세팅 완료 - Vite+TypeScript+React 환경구성, TailwindCSS+ShadCN UI 설정, ESLint+Prettier 설정, Zustand 스토어 구현, 기본 UI 레이아웃 완성, 환경설정 오류 수정

src/App.tsx

@@ -1,11 +1,9 @@
-import React from "react";
 import { useAppStore } from "./stores/useAppStore";
 import { Card, CardContent } from "./components/ui/card";
 import { Button } from "./components/ui/button";
 
 function App() {
-  const { isLoading, loadingMessage, currentFile, isAuthenticated } =
-    useAppStore();
+  const { isLoading, loadingMessage, currentFile } = useAppStore();
 
   return (
     <div className="min-h-screen bg-background">

src/stores/useAppStore.ts

@@ -37,7 +37,7 @@ interface AppState {
   setAuthenticated: (authenticated: boolean) => void;
 
   setCurrentFile: (
-    file: { name: string; size: number; uploadedAt: Date } | null
+    file: { name: string; size: number; uploadedAt: Date } | null,
   ) => void;
   setSheets: (sheets: SheetData[]) => void;
   setActiveSheetId: (sheetId: string | null) => void;
@@ -70,7 +70,7 @@ const initialState = {
 
 export const useAppStore = create<AppState>()(
   devtools(
-    (set, get) => ({
+    (set) => ({
       ...initialState,
 
       // 사용자 액션
@@ -118,6 +118,6 @@ export const useAppStore = create<AppState>()(
     }),
     {
       name: "app-store",
-    }
-  )
+    },
+  ),
 );