feat(desktop): PC·업데이트 팝업 Apple/Windows 브랜드 아이콘

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/components/AppDownloadModal.tsx

@@ -4,6 +4,7 @@
 import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import QRCode from 'qrcode';
 import DraggableModalFrame from './DraggableModalFrame';
+import { PlatformBrandIcon } from './icons/PlatformBrandIcons';
 import {
   loadDesktopAppBuildReadiness,
   loadDesktopAppBuildStatus,
@@ -161,17 +162,18 @@ const PlatformCard: React.FC<{
   mobile?: MobileAppReleaseInfoDto | null;
 }> = ({ platform, release, mobile }) => {
   const configs = {
-    mac: { label: 'macOS (Apple Silicon · Intel)', icon: '🍎', ext: '.dmg', isLink: false },
-    windows: { label: 'Windows (64-bit)', icon: '🪟', ext: '.exe', isLink: false },
-    android: { label: 'Android (패드 · 폰 · 별도 버전)', icon: '🤖', ext: '.apk', isLink: false },
+    mac: { label: 'macOS (Apple Silicon · Intel)', ext: '.dmg', isLink: false },
+    windows: { label: 'Windows (64-bit)', ext: '.exe', isLink: false },
+    android: { label: 'Android (패드 · 폰 · 별도 버전)', ext: '.apk', isLink: false },
   } as const;
-  const { label, icon, ext } = configs[platform];
+  const { label, ext } = configs[platform];
+  const brandIcon = <PlatformBrandIcon platform={platform} />;
 
   if (platform === 'android') {
     if (!mobile?.available || !mobile.downloadUrl) {
       return (
         <div className="app-download-pc-card app-download-pc-card--empty">
-          <div className="app-download-pc-icon" aria-hidden>{icon}</div>
+          {brandIcon}
           <div>
             <strong>{label}</strong>
             <p className="app-download-muted">설치 파일 준비 중 ({ext})</p>
@@ -181,7 +183,7 @@ const PlatformCard: React.FC<{
     }
     return (
       <div className="app-download-pc-card">
-        <div className="app-download-pc-icon" aria-hidden>{icon}</div>
+        {brandIcon}
         <div className="app-download-pc-body">
           <strong>{label}</strong>
           <p className="app-download-meta">
@@ -207,7 +209,7 @@ const PlatformCard: React.FC<{
   if (!release?.available || !release.downloadUrl) {
     return (
       <div className="app-download-pc-card app-download-pc-card--empty">
-        <div className="app-download-pc-icon" aria-hidden>{icon}</div>
+        {brandIcon}
         <div>
           <strong>{label}</strong>
           <p className="app-download-muted">설치 파일 준비 중 ({ext})</p>
@@ -218,7 +220,7 @@ const PlatformCard: React.FC<{
 
   return (
     <div className="app-download-pc-card">
-      <div className="app-download-pc-icon" aria-hidden>{icon}</div>
+      {brandIcon}
       <div className="app-download-pc-body">
         <strong>{label}</strong>
         <p className="app-download-meta">