feat: Phase 1 mobile tablet — Jenkins APK, PC tab, in-app update

Capacitor 확장으로 git push 시 Mobile Jenkins 빌드, PC 탭 Android/iPad 다운로드,
앱 내 APK 업데이트, iOS TestFlight API 및 Capacitor ios 프로젝트를 추가한다.

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

app/src/services/appUpdate.ts

@@ -0,0 +1,91 @@
+/**
+ * Android 앱 내 업데이트 — /api/mobile-app/info 버전 비교 후 APK 다운로드
+ */
+import { App } from '@capacitor/app';
+import { Capacitor } from '@capacitor/core';
+import {
+  isRemoteVersionNewer,
+  loadMobileAppReleaseInfo,
+  type MobileAppReleaseInfoDto,
+} from '../lib/shared';
+
+export interface AppUpdateCheckResult {
+  updateAvailable: boolean;
+  currentVersion: string;
+  remoteVersion?: string;
+  release?: MobileAppReleaseInfoDto | null;
+}
+
+export async function getCurrentAppVersion(): Promise<string> {
+  if (!Capacitor.isNativePlatform()) {
+    return import.meta.env.VITE_APP_VERSION ?? '0.0.0';
+  }
+  try {
+    const info = await App.getInfo();
+    return info.version ?? '0.0.0';
+  } catch {
+    return '0.0.0';
+  }
+}
+
+export async function checkForAppUpdate(): Promise<AppUpdateCheckResult> {
+  const currentVersion = await getCurrentAppVersion();
+  const release = await loadMobileAppReleaseInfo();
+  const remoteVersion = release?.version?.trim();
+  const updateAvailable = Boolean(
+    release?.available
+    && remoteVersion
+    && isRemoteVersionNewer(currentVersion, remoteVersion),
+  );
+  return { updateAvailable, currentVersion, remoteVersion, release };
+}
+
+export async function openApkDownload(release?: MobileAppReleaseInfoDto | null): Promise<boolean> {
+  const info = release ?? await loadMobileAppReleaseInfo();
+  const url = info?.downloadUrl?.trim();
+  if (!url) return false;
+
+  window.location.href = url;
+  return true;
+}
+
+export async function promptAppUpdateIfNeeded(silent = false): Promise<boolean> {
+  if (!Capacitor.isNativePlatform() || Capacitor.getPlatform() !== 'android') {
+    return false;
+  }
+
+  const check = await checkForAppUpdate();
+  if (!check.updateAvailable || !check.remoteVersion) {
+    return false;
+  }
+
+  if (silent) {
+    return false;
+  }
+
+  const ok = window.confirm(
+    `새 버전(v${check.remoteVersion})이 있습니다.\n`
+    + `현재: v${check.currentVersion}\n\n`
+    + 'APK를 다운로드하여 설치하시겠습니까?',
+  );
+  if (!ok) return false;
+
+  await openApkDownload(check.release);
+  return true;
+}
+
+/** 설정 화면 등 — 수동 업데이트 확인 */
+export async function checkAndPromptAppUpdate(): Promise<AppUpdateCheckResult> {
+  const result = await checkForAppUpdate();
+  if (!result.updateAvailable) {
+    window.alert(`최신 버전입니다 (v${result.currentVersion}).`);
+    return result;
+  }
+  const ok = window.confirm(
+    `새 버전 v${result.remoteVersion} 사용 가능.\nAPK를 다운로드하시겠습니까?`,
+  );
+  if (ok) {
+    await openApkDownload(result.release);
+  }
+  return result;
+}