fix(WEB): FCM 모듈 오류 수정 및 중복 타입 제거

- fcm.ts: npm 패키지 import → window.Capacitor 전역 객체 사용
  - Capacitor 앱이 런타임에 주입하는 전역 객체 활용
  - 웹 빌드 시 '@capacitor/core' 모듈 오류 해결
- next.config.ts: Capacitor 패키지 webpack fallback 추가
- types.ts: VendorManagement 중복 선언 제거 (59줄 감소)

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',
 };