diff --git a/next.config.ts b/next.config.ts
index a83f31b9..0774cffd 100644
--- a/next.config.ts
+++ b/next.config.ts
@@ -21,6 +21,18 @@ const nextConfig: NextConfig = {
     // TODO: Fix ESLint errors after migration is complete
     ignoreDuringBuilds: true,
   },
+  // Capacitor 패키지는 모바일 앱 전용 - 웹 빌드에서 제외
+  webpack: (config, { isServer }) => {
+    if (!isServer) {
+      config.resolve.fallback = {
+        ...config.resolve.fallback,
+        '@capacitor/core': false,
+        '@capacitor/push-notifications': false,
+        '@capacitor/app': false,
+      };
+    }
+    return config;
+  },
 };
 
 export default withNextIntl(nextConfig);
diff --git a/src/components/accounting/VendorManagement/types.ts b/src/components/accounting/VendorManagement/types.ts
index 6b7eda13..de532db1 100644
--- a/src/components/accounting/VendorManagement/types.ts
+++ b/src/components/accounting/VendorManagement/types.ts
@@ -274,63 +274,4 @@ export const VENDOR_CATEGORY_COLORS: Record<VendorCategory, string> = {
   sales: 'bg-green-100 text-green-800',
   purchase: 'bg-orange-100 text-orange-800',
   both: 'bg-blue-100 text-blue-800',
-};
-
-// ===== API 데이터 타입 =====
-export interface ClientApiData {
-  id: number;
-  tenant_id?: number;
-  client_code?: string;
-  name?: string;
-  client_type?: 'SALES' | 'PURCHASE' | 'BOTH';
-  contact_person?: string;
-  phone?: string;
-  mobile?: string;
-  fax?: string;
-  email?: string;
-  address?: string;
-  manager_name?: string;
-  manager_tel?: string;
-  system_manager?: string;
-  purchase_payment_day?: string;
-  sales_payment_day?: string;
-  business_no?: string;
-  business_type?: string;
-  business_item?: string;
-  account_id?: string;
-  memo?: string;
-  is_active?: boolean;
-  bad_debt?: boolean;
-  is_overdue?: boolean;
-  has_bad_debt?: boolean;
-  bad_debt_total?: number;
-  outstanding_amount?: number;
-  created_at: string;
-  updated_at: string;
-}
-
-export interface ApiResponse<T> {
-  success: boolean;
-  message?: string;
-  data?: T;
-}
-
-export interface PaginatedResponse<T> {
-  data: T[];
-  total: number;
-  page?: number;
-  size?: number;
-}
-
-// ===== API 타입 매핑 상수 =====
-export const CLIENT_TYPE_TO_CATEGORY: Record<string, VendorCategory> = {
-  SALES: 'sales',
-  PURCHASE: 'purchase',
-  BOTH: 'both',
-};
-
-export const CATEGORY_TO_CLIENT_TYPE: Record<VendorCategory, string> = {
-  sales: 'SALES',
-  purchase: 'PURCHASE',
-  both: 'BOTH',
 };
\ No newline at end of file
diff --git a/src/lib/capacitor/fcm.ts b/src/lib/capacitor/fcm.ts
index 65ad6ef2..4d12ba06 100644
--- a/src/lib/capacitor/fcm.ts
+++ b/src/lib/capacitor/fcm.ts
@@ -9,36 +9,30 @@
  * - url: 클릭 시 이동 URL
  * - sound_key: 사운드 파일 키 (sounds/{sound_key}.wav)
  *
- * NOTE: Capacitor 모듈은 동적 import로 로드됨 (웹 빌드 에러 방지)
+ * NOTE: window.Capacitor 전역 객체 사용 (Capacitor 앱이 런타임에 주입)
  */
 
-// 동적 로드된 모듈 캐시 (any 타입 - 웹 빌드 시 모듈 없음)
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-let Capacitor: any = null;
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-let PushNotifications: any = null;
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-let App: any = null;
+// ===== TypeScript 타입 정의 (window.Capacitor) =====
 
-/**
- * Capacitor 모듈 동적 로드
- */
-async function loadCapacitorModules(): Promise<boolean> {
-  if (Capacitor && PushNotifications && App) return true;
+interface CapacitorGlobal {
+  getPlatform: () => 'ios' | 'android' | 'web';
+  isPluginAvailable: (name: string) => boolean;
+  Plugins: {
+    PushNotifications?: {
+      removeAllListeners: () => Promise<void>;
+      addListener: (event: string, callback: (data: unknown) => void) => void;
+      requestPermissions: () => Promise<{ receive: string }>;
+      register: () => Promise<void>;
+    };
+    App?: {
+      addListener: (event: string, callback: (data: { isActive: boolean }) => void) => void;
+    };
+  };
+}
 
-  try {
-    const [coreModule, pushModule, appModule] = await Promise.all([
-      import('@capacitor/core'),
-      import('@capacitor/push-notifications'),
-      import('@capacitor/app'),
-    ]);
-    Capacitor = coreModule.Capacitor;
-    PushNotifications = pushModule.PushNotifications;
-    App = appModule.App;
-    return true;
-  } catch {
-    console.log('[FCM] Capacitor modules not available (web environment)');
-    return false;
+declare global {
+  interface Window {
+    Capacitor?: CapacitorGlobal;
   }
 }
 
@@ -78,11 +72,10 @@ let isInitialized = false;
 
 /**
  * Capacitor 네이티브 환경인지 확인
- * 동기 함수 - Capacitor가 로드되지 않은 경우 false 반환
  */
 export function isCapacitorNative(): boolean {
-  if (!Capacitor) return false;
-  const platform = Capacitor.getPlatform();
+  if (typeof window === 'undefined') return false;
+  const platform = window.Capacitor?.getPlatform?.();
   return platform === 'ios' || platform === 'android';
 }
 
@@ -90,8 +83,8 @@ export function isCapacitorNative(): boolean {
  * 현재 플랫폼 반환
  */
 export function getDevicePlatform(): 'ios' | 'android' | 'web' {
-  if (!Capacitor) return 'web';
-  const platform = Capacitor.getPlatform();
+  if (typeof window === 'undefined') return 'web';
+  const platform = window.Capacitor?.getPlatform?.();
   if (platform === 'ios' || platform === 'android') return platform;
   return 'web';
 }
@@ -100,6 +93,7 @@ export function getDevicePlatform(): 'ios' | 'android' | 'web' {
  * 디바이스 이름 반환 (User-Agent 기반)
  */
 function getDeviceName(): string | null {
+  if (typeof navigator === 'undefined') return null;
   return navigator.userAgent?.substring(0, 100) || null;
 }
 
@@ -121,20 +115,28 @@ function getAppVersion(): string | null {
 export async function initializeFCM(
   onForegroundNotification?: ForegroundNotificationHandler
 ): Promise<boolean> {
-  // Capacitor 모듈 동적 로드
-  const modulesLoaded = await loadCapacitorModules();
-  if (!modulesLoaded || !Capacitor || !PushNotifications || !App) {
-    console.log('[FCM] Not running in native app');
+  // 브라우저 환경 체크
+  if (typeof window === 'undefined') {
+    console.log('[FCM] Not running in browser');
+    return false;
+  }
+
+  // Capacitor 전역 객체 체크
+  if (!window.Capacitor) {
+    console.log('[FCM] Capacitor not available (web environment)');
     return false;
   }
 
   // 네이티브 환경 체크
-  if (!isCapacitorNative()) {
-    console.log('[FCM] Not running in native app');
+  const platform = window.Capacitor.getPlatform();
+  if (platform !== 'ios' && platform !== 'android') {
+    console.log('[FCM] Not running in native app (platform:', platform, ')');
     return false;
   }
 
-  if (!Capacitor.isPluginAvailable('PushNotifications')) {
+  // PushNotifications 플러그인 체크
+  const PushNotifications = window.Capacitor.Plugins?.PushNotifications;
+  if (!PushNotifications) {
     console.log('[FCM] PushNotifications plugin not available');
     return false;
   }
@@ -146,7 +148,8 @@ export async function initializeFCM(
 
   try {
     // 앱 상태 리스너 (포그라운드/백그라운드)
-    if (Capacitor.isPluginAvailable('App')) {
+    const App = window.Capacitor.Plugins?.App;
+    if (App) {
       App.addListener('appStateChange', ({ isActive }) => {
         isAppForeground = isActive;
         console.log('[FCM] App state:', isActive ? 'foreground' : 'background');
@@ -157,24 +160,25 @@ export async function initializeFCM(
     await PushNotifications.removeAllListeners();
 
     // 리스너 등록 (register() 호출 전에 등록해야 함)
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    PushNotifications.addListener('registration', async (token: any) => {
-      console.log('[FCM] Token received:', token.value?.substring(0, 20) + '...');
-      await handleTokenRegistration(token.value);
+    PushNotifications.addListener('registration', async (tokenData: unknown) => {
+      const token = (tokenData as { value: string })?.value;
+      console.log('[FCM] 🔥 registration event fired');
+      console.log('[FCM] Token received:', token?.substring(0, 20) + '...');
+      await handleTokenRegistration(token);
     });
 
-    PushNotifications.addListener('registrationError', (err) => {
+    PushNotifications.addListener('registrationError', (err: unknown) => {
       console.error('[FCM] Registration error:', err);
     });
 
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    PushNotifications.addListener('pushNotificationReceived', (notification: any) => {
+    PushNotifications.addListener('pushNotificationReceived', (notification: unknown) => {
       console.log('[FCM] Push received (foreground):', notification);
 
+      const notif = notification as { title?: string; body?: string; data?: PushNotificationData };
       const fcmNotification: FCMNotification = {
-        title: notification.title,
-        body: notification.body,
-        data: notification.data as PushNotificationData,
+        title: notif.title,
+        body: notif.body,
+        data: notif.data,
       };
 
       // 포그라운드 알림 콜백 호출
@@ -183,13 +187,13 @@ export async function initializeFCM(
       }
 
       // 사운드 재생
-      handleForegroundSound(notification.data?.sound_key);
+      handleForegroundSound(notif.data?.sound_key);
     });
 
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    PushNotifications.addListener('pushNotificationActionPerformed', (action: any) => {
+    PushNotifications.addListener('pushNotificationActionPerformed', (action: unknown) => {
       console.log('[FCM] Push action performed:', action);
-      const url = action.notification?.data?.url;
+      const actionData = action as { notification?: { data?: { url?: string } } };
+      const url = actionData.notification?.data?.url;
       if (url && typeof url === 'string') {
         // URL 이동 (router.push 대신 window.location.href 사용 - 확실한 이동)
         window.location.href = url;