feat: [barobill] 로그인 정보 등록/수정 조건부 표시

- 바로빌 ID 등록 시 아이디 표시 + 수정 버튼
- 미등록 시 기존 등록 버튼 유지
- IntegrationStatus에 member 정보 추가

src/components/settings/BarobillIntegration/actions.ts

@@ -66,9 +66,15 @@ export async function getBankServiceUrl(
 export async function getIntegrationStatus(): Promise<ActionResult<IntegrationStatus>> {
   return executeServerAction({
     url: buildApiUrl('/api/v1/barobill/status'),
-    transform: (data: { bank_service_count?: number; account_link_count?: number }) => ({
+    transform: (data: { bank_service_count?: number; account_link_count?: number; member?: { barobill_id?: string; biz_no?: string; status?: string; server_mode?: string } }) => ({
       bankServiceCount: data.bank_service_count ?? 0,
       accountLinkCount: data.account_link_count ?? 0,
+      member: data.member ? {
+        barobillId: data.member.barobill_id ?? '',
+        bizNo: data.member.biz_no ?? '',
+        status: data.member.status ?? '',
+        serverMode: data.member.server_mode ?? '',
+      } : undefined,
     }),
     errorMessage: '연동 현황 조회에 실패했습니다.',
   });

src/components/settings/BarobillIntegration/index.tsx

@@ -3,7 +3,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import { PageLayout } from '@/components/organisms/PageLayout';
 import { PageHeader } from '@/components/organisms/PageHeader';
-import { Link2, Loader2 } from 'lucide-react';
+import { Link2, Loader2, Pencil, Check } from 'lucide-react';
 import { Button } from '@/components/ui/button';
 import { Card, CardContent } from '@/components/ui/card';
 import { Badge } from '@/components/ui/badge';
@@ -64,6 +64,8 @@ export function BarobillIntegration() {
     }
   }, []);
 
+  const hasLogin = !!status?.member?.barobillId;
+
   return (
     <PageLayout>
       <PageHeader
@@ -77,20 +79,49 @@ export function BarobillIntegration() {
         <section>
           <h2 className="text-lg font-semibold mb-3">바로빌 연동</h2>
           <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-            {/* 바로빌 로그인 정보 등록 */}
+            {/* 바로빌 로그인 정보 */}
             <Card>
               <CardContent className="p-5">
-                <h3 className="font-semibold mb-2">바로빌 회원이신가요?</h3>
-                <p className="text-sm text-muted-foreground mb-4">
-                  바로빌 로그인 발급 정보 등록
-                </p>
-                <Button
-                  variant="destructive"
-                  className="w-full"
-                  onClick={() => setLoginOpen(true)}
-                >
-                  바로빌 로그인 정보 등록
-                </Button>
+                {hasLogin ? (
+                  <>
+                    <h3 className="font-semibold mb-3">바로빌 로그인 정보</h3>
+                    <div className="space-y-2 mb-4">
+                      <div className="flex items-center gap-2 text-sm">
+                        <span className="text-muted-foreground w-16 shrink-0">아이디</span>
+                        <span className="font-medium">{status?.member?.barobillId}</span>
+                      </div>
+                      <div className="flex items-center gap-2 text-sm">
+                        <span className="text-muted-foreground w-16 shrink-0">비밀번호</span>
+                        <span className="font-medium">●●●●●●●●</span>
+                        <Badge variant="secondary" className="text-xs">
+                          <Check className="h-3 w-3 mr-1" />설정됨
+                        </Badge>
+                      </div>
+                    </div>
+                    <Button
+                      variant="outline"
+                      className="w-full"
+                      onClick={() => setLoginOpen(true)}
+                    >
+                      <Pencil className="h-4 w-4 mr-2" />
+                      로그인 정보 수정
+                    </Button>
+                  </>
+                ) : (
+                  <>
+                    <h3 className="font-semibold mb-2">바로빌 회원이신가요?</h3>
+                    <p className="text-sm text-muted-foreground mb-4">
+                      바로빌 로그인 발급 정보 등록
+                    </p>
+                    <Button
+                      variant="destructive"
+                      className="w-full"
+                      onClick={() => setLoginOpen(true)}
+                    >
+                      바로빌 로그인 정보 등록
+                    </Button>
+                  </>
+                )}
               </CardContent>
             </Card>
 

src/components/settings/BarobillIntegration/types.ts

@@ -54,4 +54,10 @@ export const ACCOUNT_TYPE_OPTIONS = [
 export interface IntegrationStatus {
   bankServiceCount: number;
   accountLinkCount: number;
+  member?: {
+    barobillId: string;
+    bizNo: string;
+    status: string;
+    serverMode: string;
+  };
 }