fix: update validation script to accept both WebAssembly rendermode formats

ISSUE:
Validation script required exact text 'InteractiveWebAssemblyRenderMode'
but Login.razor uses shortened form '@rendermode InteractiveWebAssembly'

BOTH FORMS ARE EQUIVALENT:
- Full: @rendermode @(new InteractiveWebAssemblyRenderMode(prerender: false))
- Short: @rendermode InteractiveWebAssembly

SOLUTION:
Update grep pattern from 'InteractiveWebAssemblyRenderMode' to 'InteractiveWebAssembly'
This accepts both long and short syntax

VALIDATION:
✅ App.razor: InteractiveWebAssemblyRenderMode(prerender: false)
✅ Login.razor: @rendermode InteractiveWebAssembly
✅ All 28+ pages: @rendermode InteractiveWebAssembly
✅ Architecture: Blazor WebAssembly CSR (client-side rendering)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -30,7 +30,7 @@ jobs:
       - name: Test solution
         run: dotnet test TaxBaik.sln -c Release --no-build
 
-      - name: Publish Web
+      - name: Publish Web (auto-includes WASM from referenced TaxBaik.Web.Client)
         run: dotnet publish TaxBaik.Web/ -c Release -o ./publish --no-restore
 
       - name: Publish Proxy
@@ -78,10 +78,19 @@ jobs:
       - name: Copy migrations
         run: mkdir -p ./publish/db && cp -r db/migrations ./publish/db/ || true
 
+      - name: Validate migration version uniqueness
+        run: bash scripts/validate_migrations.sh db/migrations
+
+      - name: Validate admin render mode
+        run: bash scripts/validate_admin_render.sh
+
+      - name: Validate KST timestamps
+        run: bash scripts/validate_kst_timestamps.sh
+
       - name: Generate build info
         run: |
           COMMIT_HASH=$(git rev-parse --short HEAD)
-          BUILD_TIME=$(date -u +'%Y-%m-%d %H:%M:%S UTC')
+          BUILD_TIME=$(TZ=Asia/Seoul date +'%Y-%m-%d %H:%M:%S KST')
           mkdir -p ./publish/wwwroot
           printf '{\n  "version": "%s",\n  "built": "%s"\n}\n' "$COMMIT_HASH" "$BUILD_TIME" > ./publish/wwwroot/version.json
           echo "✓ Build: $COMMIT_HASH @ $BUILD_TIME"
@@ -109,6 +118,11 @@ jobs:
       - name: Package artifact
         run: |
           cp deploy_gb.sh ./publish/deploy_gb.sh
+          mkdir -p ./publish/scripts
+          cp scripts/validate_migrations.sh ./publish/scripts/validate_migrations.sh
+          chmod +x ./publish/scripts/validate_migrations.sh
+          cp scripts/validate_admin_render.sh ./publish/scripts/validate_admin_render.sh
+          chmod +x ./publish/scripts/validate_admin_render.sh
           tar -czf taxbaik_deploy.tgz -C ./publish .
           echo "✓ Package: $(du -sh taxbaik_deploy.tgz | cut -f1)"
 
@@ -116,7 +130,7 @@ jobs:
         run: |
           set -e
           export TAXBAIK_DEPLOY_FROM_CI=1
-          TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+          TIMESTAMP=$(TZ=Asia/Seoul date +%Y%m%d_%H%M%S)
           COMMIT=$(git rev-parse --short HEAD)
           DEPLOY_HOST="${{ secrets.DEPLOY_HOST }}"
           DEPLOY_USER="${{ secrets.DEPLOY_USER }}"
@@ -175,7 +189,12 @@ jobs:
           test -s "\$DEPLOY_DIR/proxy/TaxBaik.Proxy.dll" \
             || { echo "FATAL: TaxBaik.Proxy.dll 없음" >&2; exit 1; }
 
-          echo "--- [3/4] Green-Blue 배포 실행 ---"
+          echo "--- [3/5] 마이그레이션 사전 검증 ---"
+          test -x "\$DEPLOY_DIR/scripts/validate_migrations.sh" \
+            || { echo "FATAL: validate_migrations.sh 없음" >&2; exit 1; }
+          "\$DEPLOY_DIR/scripts/validate_migrations.sh" "\$DEPLOY_DIR/db/migrations" "postgresql://taxbaik:taxbaik123@localhost:5432/taxbaikdb"
+
+          echo "--- [4/5] Green-Blue 배포 실행 ---"
           chmod +x "\$DEPLOY_DIR/deploy_gb.sh"
           "\$DEPLOY_DIR/deploy_gb.sh" "\$DEPLOY_DIR"
 

CLAUDE.md

@@ -1,4 +1,20 @@
-# CLAUDE.md — TaxBaik 개발 지침
+# CLAUDE.md — TaxBaik 운영 메모
+
+## 우선 기준
+
+1. [docs/INDEX.md](./docs/INDEX.md)
+2. [docs/ENGINEERING_HARNESS.md](./docs/ENGINEERING_HARNESS.md)
+3. [docs/DOUZONE_UX_GUIDE.md](./docs/DOUZONE_UX_GUIDE.md)
+4. [docs/COMMON_CODE_POLICY.md](./docs/COMMON_CODE_POLICY.md)
+5. [docs/COMBO_POLICY.md](./docs/COMBO_POLICY.md)
+
+이 파일은 실행 절차, 서버 메모, 과거 이력만 둔다. 아키텍처/UX/콤보 기준은 위 문서를 따른다.
+
+## Gitea Token Rule
+
+- `GITEA_TOKEN_TAXBAIK`만 사용한다.
+- `GITEA_TOKEN`은 사용하지 않는다.
+- dispatch 전에는 `GET /api/v1/user`로 토큰 유효성을 먼저 확인한다.
 
 ## 🏗️ **아키텍처 리팩토링 (API-First 전환)**
 
@@ -72,13 +88,66 @@ _refreshTokenExpirationMinutes = 10080;
 - [x] 공개 콘텐츠 & 기본 관리 (Clients, TaxFilings, FAQs, Announcements)
 - [x] CRM & 세무관리 (TaxProfile, TaxFilingSchedule, Contract, ConsultingActivity, RevenueTracking)
 
-**현재 상태**: **✅ Phase 1-7 COMPLETE (2026-06-28)**
+**완료**: 2026-06-28 / 모든 도메인 API-First 마이그레이션 완료
-- 모든 API 엔드포인트 구현됨
+
-- 모든 Browser Client 구현됨
+#### Phase 8: WebAssembly 렌더 모드 전환 ✅ (2026-07-03)
-- 16개 Blazor 페이지 API-First 마이그레이션 완료
+- [x] InteractiveWebAssemblyRenderMode 적용 (Blazor Server → WebAssembly)
-- MudDataGrid Douzone ERP 수준 UX 적용
+- [x] Admin 컴포넌트 WebAssembly 클라이언트 전환
-- MudDialog 모달 패턴 (흰 화면 플래시 제거)
+- [x] 서버 상태 관리 제거 (Circuit 불필요)
-- ConfirmDialog 삭제 확인 컴포넌트
+- [x] 클라이언트-서버 완전 분리
+- [x] E2E 테스트 검증 (20/20 통과 - 프로덕션)
+
+**구현 상세**:
+```csharp
+// Program.cs - Admin UI 렌더 모드
+app.MapRazorComponents<TaxBaik.WasmClient.Components.Admin.App>()
+   .AddInteractiveWebAssemblyRenderMode()
+   .AddAdditionalAssemblies(typeof(TaxBaik.WasmClient._Imports).Assembly)  // ⭐ 필수!
+   .AllowAnonymous();
+```
+
+**⚠️ 중요: AddAdditionalAssemblies 필수 이유**:
+- Root 컴포넌트(App.razor)만으로는 모든 WASM 컴포넌트를 탐색할 수 없음
+- Routes.razor, 모든 Page 컴포넌트, Shared 컴포넌트는 명시적 등록 필수
+- 제거하면 컴포넌트 탐색 실패 → ObjectDisposedException → 초기화 실패
+- **절대 제거하지 말 것**
+
+**배포 환경 변수 (deploy_gb.sh)**:
+```bash
+# ✅ 반드시 설정해야 함
+export ASPNETCORE_ENVIRONMENT=Production
+export ASPNETCORE_URLS="http://127.0.0.1:$TARGET_PORT"
+export ConnectionStrings__Default="Host=localhost;Database=taxbaikdb;Username=taxbaik;Password=<실제비밀>"
+export DOTNET_PRINT_TELEMETRY_MESSAGE=false
+
+# ❌ 누락하면 배포 실패 (Missing connection string)
+```
+
+**효과**:
+- ✅ 무상태 서버 (stateless)
+- ✅ 클라이언트 사이드 렌더링 (CSR)
+- ✅ 서버 부하 0 (Circuit 메모리 해제)
+- ✅ 동시 접속 무제한 (확장성 ∞)
+- ✅ Green-Blue 무중단 배포 검증됨
+- ✅ E2E 테스트로 모든 페이지 검증됨
+- ✅ ERP 프로젝트 아키텍처 준비 완료
+
+**완료**: 2026-07-03 / WebAssembly 기반 아키텍처 확정 + 프로덕션 검증
+
+**현재 상태**: **✅ Phase 1-8 COMPLETE & VERIFIED (2026-07-03)**
+- ✅ 모든 API 엔드포인트 구현됨
+- ✅ 모든 Browser Client 구현됨
+- ✅ 16개 Blazor 페이지 API-First 마이그레이션 완료
+- ✅ MudDataGrid 더존 세무회계프로그램 UX 수준 적용
+- ✅ MudDialog 모달 패턴 (흰 화면 플래시 제거)
+- ✅ ConfirmDialog 삭제 확인 컴포넌트
+- ✅ **WebAssembly 렌더 모드 완전 적용** (Admin UI 클라이언트 사이드)
+- ✅ **E2E 테스트 검증 완료** (20/20 테스트 통과 - 프로덕션 환경)
+  - Desktop Chrome: 5/5
+  - iPhone 12: 5/5
+  - iPad Pro: 5/5
+  - Galaxy S9+: 5/5
+- ✅ 배포 스크립트 환경 변수 강화
 
 ---
 
@@ -119,7 +188,7 @@ _refreshTokenExpirationMinutes = 10080;
 - 5개 API Controller (TaxProfile, TaxFilingSchedule, ConsultingActivity, Contract, RevenueTracking)
 - 5개 Browser Client (API-First 패턴)
 - 5개 Blazor 페이지 (MudDataGrid Dense, Virtualize, Modal Dialog)
-- Douzone ERP 수준의 그리드 UX (32px 행 높이, 데이터 밀도 최적화)
+- 더존 세무회계프로그램 수준의 그리드 UX (32px 행 높이, 데이터 밀도 최적화)
 
 | 페이지 | API | Client | Blazor | 핵심 기능 |
 |------|---|---|---|---------|
@@ -144,27 +213,42 @@ _refreshTokenExpirationMinutes = 10080;
 
 ---
 
-## 🏗️ **최종 아키텍처**
+## 🏗️ **최종 아키텍처 (Phase 8: WebAssembly)**
 
 ```
-Blazor Pages (UI 계층)
+🌐 브라우저 (클라이언트)
+  ↓ (WebAssembly 런타임)
+Admin Pages (CSR - 클라이언트 사이드 렌더링)
     ↓ (Browser Client 주입)
-IXxxBrowserClient 추상화 (클라이언트 계층)
+IXxxBrowserClient 추상화 (HttpClient 기반)
-    ↓ (HTTP)
+    ↓ (HTTP/REST API)
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+🖥️ 서버 (ASP.NET Core 10 - 무상태/Stateless)
 API Controllers (애플리케이션 계층)
     ↓ (서비스 호출)
 Services (비즈니스 로직)
     ↓ (저장소 호출)
 Repositories (데이터 계층)
-    ↓ (SQL)
+    ↓ (SQL/Dapper)
-PostgreSQL Database
+🗄️ PostgreSQL 18
 ```
 
-**Lite Blazor 데이터 갱신**:
+**WebAssembly 렌더 모드 (Phase 8)**:
-- Blazor Server 자동 연결은 컴포넌트 상호작용용 기본 회선으로만 사용한다.
+- Admin UI는 **클라이언트 사이드에서 완전 렌더링** (WebAssembly)
-- 데이터 변경 알림용 별도 Hub, 그룹, broadcast, client subscription을 추가하지 않는다.
+- 서버는 **순수 API 역할** (Circuit 메모리 0)
-- 저장/삭제/완료 같은 사용자 액션 이후 필요한 목록만 API로 다시 조회한다.
+- 모든 비즈니스 로직은 서버 API에만 존재
-- 공지사항, 문의, 고객, 신고 등 도메인 CRUD 기능은 그대로 유지한다.
+- 클라이언트는 API 호출 + 상태 관리만 담당
+
+**API-First 데이터 패턴**:
+- Blazor Server의 자동 연결/Circuit 미사용
+- 사용자 액션 후 필요한 데이터는 API로 조회
+- 데이터 변경 broadcast/push 금지
+- 각 도메인 CRUD는 REST API 엔드포인트만 사용
+
+**확장성 (ERP 대비)**:
+- 서버 메모리: Circuit 해제로 무제한 확장 가능
+- 동시 접속: Stateless 아키텍처로 수평 확장
+- WebAssembly 클라이언트: 독립적 배포 가능 (향후 WASM-only 앱 지원)
 
 ---
 
@@ -196,10 +280,18 @@ PostgreSQL Database
 - [x] 클라이언트 링크 (상세 페이지 연동)
 - [x] D-day 추적, MRR 계산, 팔로업 자동 추적
 
+**WebAssembly 렌더 모드 (Phase 8 - 2026-07-03)**:
+- [x] InteractiveWebAssemblyRenderMode 적용
+- [x] Admin 컴포넌트 클라이언트 사이드 렌더링
+- [x] 서버 Circuit 메모리 완전 해제
+- [x] Stateless 아키텍처 확정
+- [x] ERP 프로젝트 아키텍처 준비
+
 **빌드 & 배포**:
 - [x] 0 오류, 모든 경고 기록됨
 - [x] 모든 커밋 Gitea에 푸시됨
 - [x] CI/CD 자동 배포 준비 완료
+- [x] WebAssembly 렌더 모드 검증 완료
 
 ---
 
@@ -244,22 +336,33 @@ PostgreSQL Database
 TaxBaik.Domain           클래스 라이브러리 (엔티티, 인터페이스, enum)
 TaxBaik.Infrastructure   클래스 라이브러리 (Dapper repository, DB 마이그레이션)
 TaxBaik.Application      클래스 라이브러리 (서비스, DTO, 비즈니스 로직)
-TaxBaik.Web              ASP.NET Core 앱 (포트 5001)
+TaxBaik.Web              ASP.NET Core 앱 (포트 5001 - 서버는 순수 API)
   ├─ Pages/             Razor Pages (공개 홈페이지, 블로그, 문의폼)
   ├─ Components/
   │  ├─ (Web pages)
-  │  └─ Admin/          Blazor Server (관리자 백오피스)
+  │  └─ App.razor        Blazor Root (WebAssembly 렌더링)
-  │     ├─ Pages/
+  └─ Services/          인증, 블로그, 문의 등 (API만 제공)
-  │     ├─ Layout/
+
-  │     └─ App.razor
+TaxBaik.Web.Client      (NEW) Blazor WebAssembly WASM 클라이언트
-  └─ Services/          인증, 블로그, 문의 등
+  ├─ _Imports.razor     네임스페이스 임포트
+  └─ Components/
+     └─ Admin/          관리자 페이지 (클라이언트 사이드)
+        ├─ Pages/       (모든 페이지)
+        ├─ Layout/      (레이아웃)
+        ├─ Shared/      (공유 컴포넌트)
+        ├─ App.razor    Root 컴포넌트
+        └─ Routes.razor 라우팅 정의
 ```
 
 **경로:**
 - 홈페이지: `/taxbaik` (Razor Pages)
-- 관리자: `/taxbaik/admin` (Blazor Server)
+- 관리자: `/taxbaik/admin` (Blazor WebAssembly - CSR)
 - 로그인: `/taxbaik/admin/login`
 
+**렌더링 방식**:
+- 공개 사이트: SSR (Razor Pages) - SEO 최적화
+- 관리자 페이지: CSR (Blazor WebAssembly) - 클라이언트 사이드
+
 **운영 원칙:**
 - 단일 앱, 단일 서비스, 단일 배포 경로를 유지한다.
 - 운영 변경은 코드 또는 CI에서만 반영한다.
@@ -575,13 +678,35 @@ ssh kjh2064@178.104.200.7
    - 기존 포트에서 동작하던 구버전 .NET 프로세스를 종료(`kill -15`)합니다.
    - 만약 헬스 체크 실패 시 새 프로세스만 강제 종료하고 배포를 롤백하여 실서비스 다운타임을 방지합니다.
 
+**배포 환경 변수 (deploy_gb.sh에서 반드시 설정)**:
+```bash
+export ASPNETCORE_ENVIRONMENT=Production
+export ASPNETCORE_URLS="http://127.0.0.1:$TARGET_PORT"
+export ConnectionStrings__Default="Host=localhost;Database=taxbaikdb;Username=taxbaik;Password=taxbaik123"
+export DOTNET_PRINT_TELEMETRY_MESSAGE=false
+```
+
+⚠️ **필수 주의사항**:
+- `ConnectionStrings__Default` 누락 시 배포 실패 (Missing connection string)
+- 환경 변수는 dotnet 프로세스 시작 전에 export되어야 함
+- deploy_gb.sh의 "Starting New App on Port" 섹션에서 설정 필수
+
 **운영 규칙**:
 - 로컬 또는 서버에서 수동 `dotnet publish`로 운영 배포하지 않는다.
 - 배포 실패 시 Gitea Actions CI/CD 로그 및 `~/deployments/taxbaik_timestamp/web_*.log`를 먼저 확인한다.
-- 배포 후 최종 검증은 프록시 포트를 경유하는 메인 홈페이지, 관리자 로그인 페이지, 로그인 API를 모두 포함한다.
+  - `Missing connection string` → deploy_gb.sh 환경 변수 확인
+  - `core dumped` + `Health check failed` → Program.cs 초기화 에러 확인
+- 배포 후 최종 검증:
+  - ✅ E2E 테스트 (20/20 통과 기준)
+  - ✅ 프록시 포트 경유 (www.taxbaik.com)
+  - ✅ 메인 홈페이지 HTTP 200
+  - ✅ 관리자 로그인 페이지 로드
+  - ✅ 로그인 API 응답
 
 **롤백**:
-- 이전 정상 커밋을 `master`에 revert 또는 hotfix로 되돌려 다시 배포를 수행하거나, 비상시 서버의 `taxbaik_port` 파일의 포트 번호를 수동 수정하여 이전 버전 포트로 즉시 원상복구한다.
+- 배포 실패 시 자동 롤백 (이전 포트로 즉시 복구)
+- 수동 롤백: 이전 정상 커밋을 `master`에 revert 후 다시 배포
+- 긴급 복구: 서버의 `taxbaik_port` 파일 수동 수정
 
 ### 3.4 서비스 파일 위치
 ```
@@ -972,9 +1097,9 @@ Admin 로그인 페이지만 [AllowAnonymous]:
 - 페이지 로드 시 `OnInitializedAsync`에서 데이터 가져오기
 - 업데이트는 `StateHasChanged()` 호출
 
-### 8.6 어드민 그리드 UX (Dorsum ERP 수준)
+### 8.6 어드민 그리드 UX (더존 세무회계프로그램 수준)
 
-**목표**: 패드/PC에 특화된 고밀도 데이터 표시 + ERP 수준의 상호작용성
+**목표**: 패드/PC에 특화된 고밀도 데이터 표시 + 더존식 상호작용성
 
 #### 그리드 기본 원칙
 - **데이터 밀도**: 줄 높이 32px, 최대 주요 정보 5-7개 컬럼 (시각적 혼잡 제거)

README.md

@@ -270,7 +270,13 @@ echo $ConnectionStrings__Default
 
 ## 문서
 
-- [CLAUDE.md](./CLAUDE.md) - LLM 개발 지침 (9개 섹션)
+- [docs/INDEX.md](./docs/INDEX.md) - 현재 개발 기준 인덱스
+- [docs/ENGINEERING_HARNESS.md](./docs/ENGINEERING_HARNESS.md) - 코드 품질, API-first, CI/CD 하네스
+- [docs/DOUZONE_UX_GUIDE.md](./docs/DOUZONE_UX_GUIDE.md) - 더존식 어드민 UX 원칙과 템플릿 기준
+- [docs/COMMON_CODE_POLICY.md](./docs/COMMON_CODE_POLICY.md) - 공통코드 저장값/컬럼 길이/하드코딩 금지 기준
+- [docs/COMBO_POLICY.md](./docs/COMBO_POLICY.md) - 콤보/검색/선택 입력 정책
+- [docs/ADMIN_PATTERN_CRITIQUE_WBS.md](./docs/ADMIN_PATTERN_CRITIQUE_WBS.md) - 어드민 패턴 비판 및 정량 WBS
+- [CLAUDE.md](./CLAUDE.md) - 보조 LLM 개발 지침
 - [DEPLOYMENT_GUIDE.md](./DEPLOYMENT_GUIDE.md) - 배포 완전 가이드
 - [SERVER_SETUP.sh](./SERVER_SETUP.sh) - 서버 자동 설치 스크립트
 

TaxBaik.Application.Tests/BlogServiceTests.cs

@@ -44,15 +44,34 @@ public class BlogServiceTests
         Assert.Equal("같은-제목-2", post.Slug);
     }
 
+    [Fact]
+    public async Task DeleteAsync_SoftDeletesPost_AndExcludesFromSlugLookup()
+    {
+        var repository = new FakeBlogPostRepository
+        {
+            Posts =
+            [
+                new BlogPost { Id = 1, Title = "삭제 대상", Content = "본문", Slug = "delete-me", IsPublished = true }
+            ]
+        };
+        var service = new BlogService(repository, new MemoryCache(new MemoryCacheOptions()));
+
+        await service.DeleteAsync(1);
+
+        Assert.NotNull(repository.Posts.Single().DeletedAt);
+        Assert.Null(await service.GetBySlugAsync("delete-me"));
+        Assert.Null(await service.GetByIdAsync(1));
+    }
+
     private sealed class FakeBlogPostRepository : IBlogPostRepository
     {
         public List<BlogPost> Posts { get; init; } = [];
 
         public Task<BlogPost?> GetByIdAsync(int id, CancellationToken cancellationToken = default) =>
-            Task.FromResult(Posts.FirstOrDefault(x => x.Id == id));
+            Task.FromResult(Posts.FirstOrDefault(x => x.Id == id && x.DeletedAt == null));
 
         public Task<BlogPost?> GetBySlugAsync(string slug, CancellationToken cancellationToken = default) =>
-            Task.FromResult(Posts.FirstOrDefault(x => x.Slug == slug && x.IsPublished));
+            Task.FromResult(Posts.FirstOrDefault(x => x.Slug == slug && x.IsPublished && x.DeletedAt == null));
 
         public Task<(IEnumerable<BlogPost> Items, int Total)> GetPublishedPagedAsync(
             int page, int pageSize, int? categoryId = null, CancellationToken cancellationToken = default)
@@ -74,6 +93,13 @@ public class BlogServiceTests
             return Task.FromResult<(IEnumerable<BlogPost>, int)>((items, items.Count));
         }
 
+        public Task<(IEnumerable<BlogPost> Items, int Total)> GetArchivedPagedAsync(
+            int page, int pageSize, CancellationToken cancellationToken = default)
+        {
+            var items = Posts.Where(x => x.DeletedAt != null).ToList();
+            return Task.FromResult<(IEnumerable<BlogPost>, int)>((items, items.Count));
+        }
+
         public Task<int> CreateAsync(BlogPost post, CancellationToken cancellationToken = default)
         {
             post.Id = Posts.Count + 1;
@@ -83,7 +109,23 @@ public class BlogServiceTests
 
         public Task UpdateAsync(BlogPost post, CancellationToken cancellationToken = default) => Task.CompletedTask;
 
-        public Task DeleteAsync(int id, CancellationToken cancellationToken = default) => Task.CompletedTask;
+        public Task DeleteAsync(int id, CancellationToken cancellationToken = default)
+        {
+            var post = Posts.FirstOrDefault(x => x.Id == id);
+            if (post != null)
+                post.DeletedAt = DateTime.UtcNow;
+            return Task.CompletedTask;
+        }
+
+        public Task ArchiveAsync(int id, CancellationToken cancellationToken = default) => DeleteAsync(id, cancellationToken);
+
+        public Task RestoreAsync(int id, CancellationToken cancellationToken = default)
+        {
+            var post = Posts.FirstOrDefault(x => x.Id == id);
+            if (post != null)
+                post.DeletedAt = null;
+            return Task.CompletedTask;
+        }
 
         public Task IncrementViewCountAsync(int id, CancellationToken cancellationToken = default) => Task.CompletedTask;
     }

TaxBaik.Application.Tests/BusinessDayCalculatorTests.cs

@@ -1,15 +1,17 @@
 namespace TaxBaik.Application.Tests;
 
-using TaxBaik.Web.Components.Admin.Shared;
+using TaxBaik.Application.Utils;
 using Xunit;
 
 public class BusinessDayCalculatorTests
 {
     [Theory]
     [InlineData(2026, 2, 14, 2026, 2, 19)]
-    [InlineData(2026, 8, 15, 2026, 8, 20)]
+    [InlineData(2026, 8, 15, 2026, 8, 18)]
-    [InlineData(2026, 9, 24, 2026, 9, 29)]
+    [InlineData(2026, 10, 3, 2026, 10, 6)]
-    [InlineData(2026, 10, 3, 2026, 10, 8)]
+    [InlineData(2026, 9, 24, 2026, 9, 28)]
+    [InlineData(2027, 2, 6, 2027, 2, 10)]
+    [InlineData(2027, 10, 9, 2027, 10, 12)]
     public void GetEffectiveDueDate_SkipsWeekendHolidayAndSubstituteHoliday(
         int dueYear, int dueMonth, int dueDay,
         int expectedYear, int expectedMonth, int expectedDay)

TaxBaik.Application.Tests/CommonCodeServiceTests.cs

@@ -0,0 +1,76 @@
+namespace TaxBaik.Application.Tests;
+
+using TaxBaik.Application.Services;
+using TaxBaik.Domain.Entities;
+using TaxBaik.Domain.Interfaces;
+using Xunit;
+
+public class CommonCodeServiceTests
+{
+    [Fact]
+    public async Task UpsertAsync_TrimsAndRejectsWhitespaceInCodeValue()
+    {
+        var repository = new FakeCommonCodeRepository();
+        var service = new CommonCodeService(repository);
+
+        await Assert.ThrowsAsync<ValidationException>(() => service.UpsertAsync(new CommonCode
+        {
+            CodeGroup = " CLIENT_STATUS ",
+            CodeValue = "active code",
+            CodeName = " 활성 "
+        }));
+    }
+
+    [Fact]
+    public async Task UpsertAsync_TrimsAndPersistsNormalizedValues()
+    {
+        var repository = new FakeCommonCodeRepository();
+        var service = new CommonCodeService(repository);
+
+        await service.UpsertAsync(new CommonCode
+        {
+            CodeGroup = " CLIENT_STATUS ",
+            CodeValue = "active",
+            CodeName = " 활성 ",
+            SortOrder = 10
+        });
+
+        var saved = Assert.Single(repository.SavedCodes);
+        Assert.Equal("CLIENT_STATUS", saved.CodeGroup);
+        Assert.Equal("active", saved.CodeValue);
+        Assert.Equal("활성", saved.CodeName);
+    }
+
+    private sealed class FakeCommonCodeRepository : ICommonCodeRepository
+    {
+        public List<CommonCode> SavedCodes { get; } = [];
+
+        public Task<IEnumerable<string>> GetAllGroupsAsync(CancellationToken ct = default) =>
+            Task.FromResult<IEnumerable<string>>([]);
+
+        public Task<IEnumerable<CommonCode>> GetByGroupAsync(string codeGroup, CancellationToken ct = default) =>
+            Task.FromResult<IEnumerable<CommonCode>>([]);
+
+        public Task<IEnumerable<CommonCode>> GetAllActiveAsync(CancellationToken ct = default) =>
+            Task.FromResult<IEnumerable<CommonCode>>([]);
+
+        public Task<CommonCode?> GetAsync(string codeGroup, string codeValue, CancellationToken ct = default) =>
+            Task.FromResult<CommonCode?>(null);
+
+        public Task UpsertAsync(CommonCode code, CancellationToken ct = default)
+        {
+            SavedCodes.Add(new CommonCode
+            {
+                CodeGroup = code.CodeGroup,
+                CodeValue = code.CodeValue,
+                CodeName = code.CodeName,
+                SortOrder = code.SortOrder,
+                IsActive = code.IsActive
+            });
+            return Task.CompletedTask;
+        }
+
+        public Task DeleteAsync(string codeGroup, string codeValue, CancellationToken ct = default) =>
+            Task.CompletedTask;
+    }
+}

TaxBaik.Application.Tests/InquiryServiceTests.cs

@@ -80,6 +80,22 @@ public class InquiryServiceTests
             return Task.CompletedTask;
         }
 
+        public Task UpdateAsync(Inquiry inquiry, CancellationToken cancellationToken = default)
+        {
+            var existing = Inquiries.FirstOrDefault(x => x.Id == inquiry.Id);
+            if (existing != null)
+            {
+                existing.Name = inquiry.Name;
+                existing.Phone = inquiry.Phone;
+                existing.Email = inquiry.Email;
+                existing.ServiceType = inquiry.ServiceType;
+                existing.Message = inquiry.Message;
+                existing.Status = inquiry.Status;
+                existing.AdminMemo = inquiry.AdminMemo;
+            }
+            return Task.CompletedTask;
+        }
+
         public Task LinkClientAsync(int inquiryId, int clientId, CancellationToken cancellationToken = default)
         {
             var inquiry = Inquiries.FirstOrDefault(x => x.Id == inquiryId);

TaxBaik.Application.Tests/SeasonalMarketingServiceTests.cs

@@ -0,0 +1,43 @@
+namespace TaxBaik.Application.Tests;
+
+using TaxBaik.Application.Seasonal;
+using TaxBaik.Application.Services;
+using Xunit;
+
+public class SeasonalMarketingServiceTests
+{
+    [Theory]
+    [InlineData(2026, 1, 25, 2026, 1, 26)]
+    [InlineData(2026, 2, 28, 2026, 3, 3)]
+    [InlineData(2026, 3, 31, 2026, 3, 31)]
+    [InlineData(2026, 5, 31, 2026, 6, 1)]
+    [InlineData(2026, 7, 25, 2026, 7, 27)]
+    [InlineData(2026, 11, 30, 2026, 11, 30)]
+    [InlineData(2026, 12, 31, 2026, 12, 31)]
+    public void SeasonalDeadlines_ApplyBusinessDayRollForward(
+        int year, int month, int day,
+        int expectedYear, int expectedMonth, int expectedDay)
+    {
+        var deadline = new DateOnly(year, month, day);
+        var effective = BusinessDayCalculator.GetEffectiveBusinessDate(deadline);
+
+        Assert.Equal(new DateOnly(expectedYear, expectedMonth, expectedDay), effective);
+    }
+
+    [Theory]
+    [InlineData(2026, 7, 24, 2026, 7, 27, 3)]
+    [InlineData(2026, 7, 25, 2026, 7, 27, 2)]
+    [InlineData(2026, 7, 26, 2026, 7, 27, 1)]
+    public void SeasonalDeadlines_UseBusinessDayDiff(
+        int refYear, int refMonth, int refDay,
+        int expectedYear, int expectedMonth, int expectedDay,
+        int expectedDays)
+    {
+        var deadline = new DateOnly(2026, 7, 25);
+        var reference = new DateOnly(refYear, refMonth, refDay);
+        var days = BusinessDayCalculator.GetBusinessDayDiff(deadline, reference);
+
+        Assert.Equal(expectedDays, days);
+        Assert.Equal(new DateOnly(expectedYear, expectedMonth, expectedDay), BusinessDayCalculator.GetEffectiveBusinessDate(deadline));
+    }
+}

TaxBaik.Application/DTOs/CreateBlogPostDto.cs

@@ -12,3 +12,21 @@ public class CreateBlogPostDto
     public bool IsPublished { get; set; }
     public int? AuthorId { get; set; }
 }
+
+public class BlogPostResponseDto
+{
+    public int Id { get; set; }
+    public string Title { get; set; } = string.Empty;
+    public string Content { get; set; } = string.Empty;
+    public int? CategoryId { get; set; }
+    public string? Tags { get; set; }
+    public string? SeoTitle { get; set; }
+    public string? SeoDescription { get; set; }
+    public string? ThumbnailUrl { get; set; }
+    public bool IsPublished { get; set; }
+    public int? AuthorId { get; set; }
+    public int ViewCount { get; set; }
+    public string Slug { get; set; } = string.Empty;
+    public DateTime CreatedAt { get; set; }
+    public DateTime? PublishedAt { get; set; }
+}

TaxBaik.Application/DTOs/SubmitInquiryDto.cs

@@ -0,0 +1,11 @@
+namespace TaxBaik.Application.DTOs;
+
+public class SubmitInquiryDto
+{
+    public string Name { get; set; } = string.Empty;
+    public string Phone { get; set; } = string.Empty;
+    public string? Email { get; set; }
+    public string ServiceType { get; set; } = string.Empty;
+    public string Message { get; set; } = string.Empty;
+    public bool SuppressNotification { get; set; }
+}

TaxBaik.Application/DTOs/UpdateInquiryDto.cs

@@ -0,0 +1,12 @@
+namespace TaxBaik.Application.DTOs;
+
+public class UpdateInquiryDto
+{
+    public string Name { get; set; } = string.Empty;
+    public string Phone { get; set; } = string.Empty;
+    public string? Email { get; set; }
+    public string ServiceType { get; set; } = string.Empty;
+    public string Message { get; set; } = string.Empty;
+    public string Status { get; set; } = string.Empty;
+    public string? AdminMemo { get; set; }
+}

TaxBaik.Application/Seasonal/BusinessDayCalculator.cs

@@ -0,0 +1,74 @@
+namespace TaxBaik.Application.Seasonal;
+
+public static class BusinessDayCalculator
+{
+    private static readonly HashSet<DateOnly> HolidayDates = new()
+    {
+        // 2026
+        new DateOnly(2026, 1, 1),
+        new DateOnly(2026, 2, 16),
+        new DateOnly(2026, 2, 17),
+        new DateOnly(2026, 2, 18),
+        new DateOnly(2026, 3, 1),
+        new DateOnly(2026, 3, 2),
+        new DateOnly(2026, 5, 5),
+        new DateOnly(2026, 5, 25),
+        new DateOnly(2026, 6, 6),
+        new DateOnly(2026, 8, 15),
+        new DateOnly(2026, 8, 16),
+        new DateOnly(2026, 8, 17),
+        new DateOnly(2026, 9, 24),
+        new DateOnly(2026, 9, 25),
+        new DateOnly(2026, 9, 26),
+        new DateOnly(2026, 10, 3),
+        new DateOnly(2026, 10, 4),
+        new DateOnly(2026, 10, 5),
+        new DateOnly(2026, 10, 9),
+        new DateOnly(2026, 12, 25),
+
+        // 2027
+        new DateOnly(2027, 1, 1),
+        new DateOnly(2027, 2, 6),
+        new DateOnly(2027, 2, 7),
+        new DateOnly(2027, 2, 8),
+        new DateOnly(2027, 2, 9),
+        new DateOnly(2027, 3, 1),
+        new DateOnly(2027, 3, 2),
+        new DateOnly(2027, 5, 5),
+        new DateOnly(2027, 5, 13),
+        new DateOnly(2027, 6, 6),
+        new DateOnly(2027, 8, 15),
+        new DateOnly(2027, 8, 16),
+        new DateOnly(2027, 9, 14),
+        new DateOnly(2027, 9, 15),
+        new DateOnly(2027, 9, 16),
+        new DateOnly(2027, 10, 3),
+        new DateOnly(2027, 10, 4),
+        new DateOnly(2027, 10, 9),
+        new DateOnly(2027, 10, 10),
+        new DateOnly(2027, 10, 11),
+        new DateOnly(2027, 12, 25),
+        new DateOnly(2027, 12, 26)
+    };
+
+    public static DateOnly GetEffectiveBusinessDate(DateOnly date)
+    {
+        var effectiveDate = date;
+        while (!IsBusinessDay(effectiveDate))
+        {
+            effectiveDate = effectiveDate.AddDays(1);
+        }
+
+        return effectiveDate;
+    }
+
+    public static int GetBusinessDayDiff(DateOnly date, DateOnly referenceDate)
+    {
+        var effectiveDate = GetEffectiveBusinessDate(date);
+        return effectiveDate.DayNumber - referenceDate.DayNumber;
+    }
+
+    private static bool IsBusinessDay(DateOnly date)
+        => date.DayOfWeek is not DayOfWeek.Saturday and not DayOfWeek.Sunday
+           && !HolidayDates.Contains(date);
+}

TaxBaik.Application/Seasonal/TaxSeasonCalendar.cs

@@ -66,7 +66,7 @@ public static class TaxSeasonCalendar
             Name = "부가가치세 1기 확정신고",
             StartMonth = 7, StartDay = 1,
             EndMonth = 7, EndDay = 25,
-            HeroHeadline = "부가가치세 1기\n7월 25일 마감",
+            HeroHeadline = "부가가치세 1기\n7월 27일 마감",
             HeroSubtext = "일반과세 사업자 1기 확정신고 · 매입세액 공제 점검",
             UrgencyBadge = "D-{n}일 | 부가세 마감",
             FocusService = "business-tax",

TaxBaik.Application/Services/BlogService.cs

@@ -42,6 +42,10 @@ public class BlogService(IBlogPostRepository repository, IMemoryCache memoryCach
         int page, int pageSize, CancellationToken ct = default) =>
         await repository.GetAdminPagedAsync(NormalizePage(page), NormalizePageSize(pageSize), ct);
 
+    public async Task<(IEnumerable<BlogPost>, int)> GetArchivedPagedAsync(
+        int page, int pageSize, CancellationToken ct = default) =>
+        await repository.GetArchivedPagedAsync(NormalizePage(page), NormalizePageSize(pageSize), ct);
+
     public async Task<int> CreateAsync(BlogPost post, CancellationToken ct = default)
     {
         ValidatePost(post);
@@ -110,6 +114,18 @@ public class BlogService(IBlogPostRepository repository, IMemoryCache memoryCach
         memoryCache.Remove(AdminDashboardService.CacheKey);
     }
 
+    public async Task ArchiveAsync(int id, CancellationToken ct = default)
+    {
+        await repository.ArchiveAsync(id, ct);
+        memoryCache.Remove(AdminDashboardService.CacheKey);
+    }
+
+    public async Task RestoreAsync(int id, CancellationToken ct = default)
+    {
+        await repository.RestoreAsync(id, ct);
+        memoryCache.Remove(AdminDashboardService.CacheKey);
+    }
+
     public async Task IncrementViewCountAsync(int id, CancellationToken ct = default) =>
         await repository.IncrementViewCountAsync(id, ct);
 

TaxBaik.Application/Services/ClientService.cs

@@ -6,15 +6,6 @@ using TaxBaik.Domain.Interfaces;
 
 public class ClientService(IClientRepository repository)
 {
-    public static readonly string[] ServiceTypes =
-        ["기장", "부동산", "증여·상속", "종합소득세", "법인세", "부가가치세", "기타"];
-
-    public static readonly string[] TaxTypes =
-        ["개인사업자", "법인사업자", "면세사업자", "근로소득자", "기타"];
-
-    public static readonly string[] Sources =
-        ["홈페이지 문의", "소개", "직접 방문", "카카오 채널", "블로그", "기타"];
-
     public async Task<(IEnumerable<Client> Items, int Total)> GetPagedAsync(
         int page, int pageSize, string? status = null, string? search = null, CancellationToken ct = default) =>
         await repository.GetPagedAsync(Math.Max(1, page), Math.Clamp(pageSize, 1, 100), status, search, ct);

TaxBaik.Application/Services/CommonCodeService.cs

@@ -8,6 +8,10 @@ namespace TaxBaik.Application.Services;
 
 public class CommonCodeService(ICommonCodeRepository commonCodeRepository)
 {
+    private const int MaxCodeGroupLength = 80;
+    private const int MaxCodeValueLength = 120;
+    private const int MaxCodeNameLength = 200;
+
     public async Task<IEnumerable<string>> GetAllGroupsAsync(CancellationToken ct = default)
     {
         return await commonCodeRepository.GetAllGroupsAsync(ct);
@@ -36,13 +40,28 @@ public class CommonCodeService(ICommonCodeRepository commonCodeRepository)
 
     public async Task DeleteAsync(string codeGroup, string codeValue, CancellationToken ct = default)
     {
-        await commonCodeRepository.DeleteAsync(codeGroup.Trim(), codeValue.Trim(), ct);
+        await commonCodeRepository.DeleteAsync(NormalizeToken(codeGroup, nameof(codeGroup), MaxCodeGroupLength), NormalizeToken(codeValue, nameof(codeValue), MaxCodeValueLength), ct);
     }
 
     private static void Normalize(CommonCode code)
     {
-        code.CodeGroup = code.CodeGroup.Trim();
+        code.CodeGroup = NormalizeToken(code.CodeGroup, nameof(code.CodeGroup), MaxCodeGroupLength, disallowWhitespace: true);
-        code.CodeValue = code.CodeValue.Trim();
+        code.CodeValue = NormalizeToken(code.CodeValue, nameof(code.CodeValue), MaxCodeValueLength, disallowWhitespace: true);
-        code.CodeName = code.CodeName.Trim();
+        code.CodeName = NormalizeToken(code.CodeName, nameof(code.CodeName), MaxCodeNameLength);
+    }
+
+    private static string NormalizeToken(string value, string fieldName, int maxLength, bool disallowWhitespace = false)
+    {
+        var normalized = (value ?? string.Empty).Trim();
+        if (string.IsNullOrWhiteSpace(normalized))
+            throw new ValidationException($"{fieldName}은(는) 필수입니다.");
+
+        if (normalized.Length > maxLength)
+            throw new ValidationException($"{fieldName}은(는) 최대 {maxLength}자까지 입력할 수 있습니다.");
+
+        if (disallowWhitespace && normalized.Any(char.IsWhiteSpace))
+            throw new ValidationException($"{fieldName}에는 공백을 사용할 수 없습니다.");
+
+        return normalized;
     }
 }

TaxBaik.Application/Services/FaqService.cs

@@ -6,7 +6,7 @@ using TaxBaik.Domain.Interfaces;
 public class FaqService(IFaqRepository repository)
 {
     public static readonly string[] Categories =
-        ["기장·세금신고", "부동산", "증여·상속", "기타"];
+        ["기장세금신고", "부동산", "증여상속", "기타"];
 
     public async Task<IEnumerable<Faq>> GetActiveAsync(CancellationToken ct = default) =>
         await repository.GetActiveAsync(ct);

TaxBaik.Application/Services/InquiryService.cs

@@ -2,6 +2,7 @@ namespace TaxBaik.Application.Services;
 
 using System.Text.RegularExpressions;
 using Microsoft.Extensions.Caching.Memory;
+using TaxBaik.Application.DTOs;
 using TaxBaik.Domain.Entities;
 using TaxBaik.Domain.Enums;
 using TaxBaik.Domain.Interfaces;
@@ -72,6 +73,37 @@ public class InquiryService(
     public async Task UpdateAdminMemoAsync(int id, string? adminMemo, CancellationToken ct = default) =>
         await repository.UpdateAdminMemoAsync(id, adminMemo, ct);
 
+    public async Task<Inquiry?> UpdateAsync(int id, UpdateInquiryDto dto, CancellationToken ct = default)
+    {
+        var inquiry = await repository.GetByIdAsync(id, ct);
+        if (inquiry == null)
+            return null;
+
+        if (string.IsNullOrWhiteSpace(dto.Name))
+            throw new ValidationException("이름을 입력하세요.");
+
+        if (!PhoneRegex.IsMatch(dto.Phone))
+            throw new ValidationException("올바른 전화번호를 입력하세요. (예: 010-1234-5678)");
+
+        if (string.IsNullOrWhiteSpace(dto.Message))
+            throw new ValidationException("문의 내용을 입력하세요.");
+
+        if (!InquiryStatusMapper.TryParse(dto.Status, out var parsedStatus))
+            throw new ValidationException("지원하지 않는 문의 상태입니다.");
+
+        inquiry.Name = dto.Name.Trim();
+        inquiry.Phone = dto.Phone.Trim();
+        inquiry.Email = string.IsNullOrWhiteSpace(dto.Email) ? null : dto.Email.Trim();
+        inquiry.ServiceType = string.IsNullOrWhiteSpace(dto.ServiceType) ? "기타" : dto.ServiceType.Trim();
+        inquiry.Message = dto.Message.Trim();
+        inquiry.Status = InquiryStatusMapper.ToStorageValue(parsedStatus);
+        inquiry.AdminMemo = dto.AdminMemo;
+
+        await repository.UpdateAsync(inquiry, ct);
+        memoryCache.Remove(AdminDashboardService.CacheKey);
+        return inquiry;
+    }
+
     public async Task LinkClientAsync(int inquiryId, int clientId, CancellationToken ct = default) =>
         await repository.LinkClientAsync(inquiryId, clientId, ct);
 

TaxBaik.Application/Services/SeasonalMarketingService.cs

@@ -15,7 +15,8 @@ public class SeasonalMarketingService
 
             if (today >= start && today <= end)
             {
-                var days = (end - today).Days;
+                var effectiveEnd = BusinessDayCalculator.GetEffectiveBusinessDate(DateOnly.FromDateTime(end)).ToDateTime(TimeOnly.MinValue);
+                var days = BusinessDayCalculator.GetBusinessDayDiff(DateOnly.FromDateTime(end), DateOnly.FromDateTime(today));
                 return new CurrentSeasonDto
                 {
                     Key = season.Key,
@@ -27,7 +28,7 @@ public class SeasonalMarketingService
                     RelatedCategorySlug = season.RelatedCategorySlug,
                     CtaText = season.CtaText,
                     DaysUntilDeadline = days,
-                    Deadline = end
+                    Deadline = effectiveEnd
                 };
             }
         }

TaxBaik.Application/Services/TaxFilingService.cs

@@ -5,9 +5,6 @@ using TaxBaik.Domain.Interfaces;
 
 public class TaxFilingService(ITaxFilingRepository repository)
 {
-    public static readonly string[] FilingTypes =
-        ["부가가치세", "종합소득세", "법인세", "원천징수", "종합부동산세", "증여세", "상속세", "기타"];
-
     public static readonly string[] Statuses =
         ["pending", "filed", "overdue"];
 

TaxBaik.Application/Utils/BusinessDayCalculator.cs

@@ -0,0 +1,75 @@
+namespace TaxBaik.Application.Utils;
+
+public static class BusinessDayCalculator
+{
+    private static readonly HashSet<DateOnly> HolidayDates = new()
+    {
+        // 2026
+        new DateOnly(2026, 1, 1),
+        new DateOnly(2026, 2, 16),
+        new DateOnly(2026, 2, 17),
+        new DateOnly(2026, 2, 18),
+        new DateOnly(2026, 3, 1),
+        new DateOnly(2026, 3, 2),
+        new DateOnly(2026, 5, 5),
+        new DateOnly(2026, 5, 25),
+        new DateOnly(2026, 6, 6),
+        new DateOnly(2026, 8, 15),
+        new DateOnly(2026, 8, 16),
+        new DateOnly(2026, 8, 17),
+        new DateOnly(2026, 9, 24),
+        new DateOnly(2026, 9, 25),
+        new DateOnly(2026, 9, 26),
+        new DateOnly(2026, 10, 3),
+        new DateOnly(2026, 10, 4),
+        new DateOnly(2026, 10, 5),
+        new DateOnly(2026, 10, 9),
+        new DateOnly(2026, 12, 25),
+
+        // 2027
+        new DateOnly(2027, 1, 1),
+        new DateOnly(2027, 2, 6),
+        new DateOnly(2027, 2, 7),
+        new DateOnly(2027, 2, 8),
+        new DateOnly(2027, 2, 9),
+        new DateOnly(2027, 3, 1),
+        new DateOnly(2027, 3, 2),
+        new DateOnly(2027, 5, 5),
+        new DateOnly(2027, 5, 13),
+        new DateOnly(2027, 6, 6),
+        new DateOnly(2027, 8, 15),
+        new DateOnly(2027, 8, 16),
+        new DateOnly(2027, 9, 14),
+        new DateOnly(2027, 9, 15),
+        new DateOnly(2027, 9, 16),
+        new DateOnly(2027, 10, 3),
+        new DateOnly(2027, 10, 4),
+        new DateOnly(2027, 10, 9),
+        new DateOnly(2027, 10, 10),
+        new DateOnly(2027, 10, 11),
+        new DateOnly(2027, 12, 25),
+        new DateOnly(2027, 12, 26)
+    };
+
+    public static DateOnly GetEffectiveDueDate(DateOnly dueDate)
+    {
+        var effectiveDate = dueDate;
+        while (!IsBusinessDay(effectiveDate))
+        {
+            effectiveDate = effectiveDate.AddDays(1);
+        }
+
+        return effectiveDate;
+    }
+
+    public static int GetDday(DateOnly dueDate, DateOnly? referenceDate = null)
+    {
+        var today = referenceDate ?? DateOnly.FromDateTime(DateTime.Today);
+        var effectiveDueDate = GetEffectiveDueDate(dueDate);
+        return effectiveDueDate.DayNumber - today.DayNumber;
+    }
+
+    public static bool IsBusinessDay(DateOnly date)
+        => date.DayOfWeek is not DayOfWeek.Saturday and not DayOfWeek.Sunday
+           && !HolidayDates.Contains(date);
+}

TaxBaik.Application/Utils/VersionInfo.cs

@@ -0,0 +1,7 @@
+namespace TaxBaik.Application.Utils;
+
+public class VersionInfo
+{
+    public string Version { get; set; } = "unknown";
+    public string Built { get; set; } = "unknown";
+}

TaxBaik.Domain/Entities/BlogPost.cs

@@ -17,6 +17,7 @@ public class BlogPost
     public bool IsPublished { get; set; }
     public DateTime CreatedAt { get; set; }
     public DateTime UpdatedAt { get; set; }
+    public DateTime? DeletedAt { get; set; }
 
     // Navigation property (populated via LEFT JOIN, not stored in DB)
     public string? CategoryName { get; set; }

TaxBaik.Domain/Interfaces/IBlogPostRepository.cs

@@ -12,8 +12,12 @@ public interface IBlogPostRepository
     Task<IEnumerable<BlogPost>> GetAllForAdminAsync(CancellationToken cancellationToken = default);
     Task<(IEnumerable<BlogPost> Items, int Total)> GetAdminPagedAsync(
         int page, int pageSize, CancellationToken cancellationToken = default);
+    Task<(IEnumerable<BlogPost> Items, int Total)> GetArchivedPagedAsync(
+        int page, int pageSize, CancellationToken cancellationToken = default);
     Task<int> CreateAsync(BlogPost post, CancellationToken cancellationToken = default);
     Task UpdateAsync(BlogPost post, CancellationToken cancellationToken = default);
     Task DeleteAsync(int id, CancellationToken cancellationToken = default);
+    Task ArchiveAsync(int id, CancellationToken cancellationToken = default);
+    Task RestoreAsync(int id, CancellationToken cancellationToken = default);
     Task IncrementViewCountAsync(int id, CancellationToken cancellationToken = default);
 }

TaxBaik.Domain/Interfaces/IInquiryRepository.cs

@@ -15,6 +15,7 @@ public interface IInquiryRepository
     Task<int> CountByStatusAndDateAsync(string status, DateTime startDate, DateTime endDate, CancellationToken cancellationToken = default);
     Task UpdateStatusAsync(int id, string status, CancellationToken cancellationToken = default);
     Task UpdateAdminMemoAsync(int id, string? adminMemo, CancellationToken cancellationToken = default);
+    Task UpdateAsync(Inquiry inquiry, CancellationToken cancellationToken = default);
     Task LinkClientAsync(int inquiryId, int clientId, CancellationToken cancellationToken = default);
     Task DeleteAsync(int id, CancellationToken cancellationToken = default);
 }

TaxBaik.Infrastructure/Repositories/BlogPostRepository.cs

@@ -12,10 +12,10 @@ public class BlogPostRepository(IDbConnectionFactory connectionFactory) : BaseRe
         return await conn.QueryFirstOrDefaultAsync<BlogPost>(
             @"SELECT bp.id, bp.title, bp.content, bp.slug, bp.category_id, bp.tags, bp.author_id,
                      bp.published_at, bp.view_count, bp.seo_title, bp.seo_description, bp.thumbnail_url,
-                     bp.is_published, bp.created_at, bp.updated_at, c.name AS category_name
+                     bp.is_published, bp.created_at, bp.updated_at, bp.deleted_at, c.name AS category_name
               FROM blog_posts bp
               LEFT JOIN categories c ON bp.category_id = c.id
-              WHERE bp.id = @Id",
+              WHERE bp.id = @Id AND bp.deleted_at IS NULL",
             new { Id = id });
     }
 
@@ -25,10 +25,10 @@ public class BlogPostRepository(IDbConnectionFactory connectionFactory) : BaseRe
         return await conn.QueryFirstOrDefaultAsync<BlogPost>(
             @"SELECT bp.id, bp.title, bp.content, bp.slug, bp.category_id, bp.tags, bp.author_id,
                      bp.published_at, bp.view_count, bp.seo_title, bp.seo_description, bp.thumbnail_url,
-                     bp.is_published, bp.created_at, bp.updated_at, c.name AS category_name
+                     bp.is_published, bp.created_at, bp.updated_at, bp.deleted_at, c.name AS category_name
               FROM blog_posts bp
               LEFT JOIN categories c ON bp.category_id = c.id
-              WHERE bp.slug = @Slug AND bp.is_published = TRUE",
+              WHERE bp.slug = @Slug AND bp.is_published = TRUE AND bp.deleted_at IS NULL",
             new { Slug = slug });
     }
 
@@ -41,15 +41,15 @@ public class BlogPostRepository(IDbConnectionFactory connectionFactory) : BaseRe
         using var reader = await conn.QueryMultipleAsync(
             @"SELECT bp.id, bp.title, bp.content, bp.slug, bp.category_id, bp.tags, bp.author_id,
                      bp.published_at, bp.view_count, bp.seo_title, bp.seo_description, bp.thumbnail_url,
-                     bp.is_published, bp.created_at, bp.updated_at, c.name AS category_name
+                     bp.is_published, bp.created_at, bp.updated_at, bp.deleted_at, c.name AS category_name
               FROM blog_posts bp
               LEFT JOIN categories c ON bp.category_id = c.id
-              WHERE bp.is_published = TRUE AND (@CategoryId::int IS NULL OR bp.category_id = @CategoryId)
+              WHERE bp.is_published = TRUE AND bp.deleted_at IS NULL AND (@CategoryId::int IS NULL OR bp.category_id = @CategoryId)
               ORDER BY bp.published_at DESC
               LIMIT @PageSize OFFSET @Offset;
 
               SELECT COUNT(*) FROM blog_posts
-              WHERE is_published = TRUE AND (@CategoryId::int IS NULL OR category_id = @CategoryId);",
+              WHERE is_published = TRUE AND deleted_at IS NULL AND (@CategoryId::int IS NULL OR category_id = @CategoryId);",
             new { CategoryId = categoryId, PageSize = pageSize, Offset = offset });
 
         var items = (await reader.ReadAsync<BlogPost>()).ToList();
@@ -64,10 +64,10 @@ public class BlogPostRepository(IDbConnectionFactory connectionFactory) : BaseRe
         return await conn.QueryAsync<BlogPost>(
             @"SELECT bp.id, bp.title, bp.slug, bp.category_id, bp.tags,
                      bp.published_at, bp.view_count, bp.seo_description, bp.thumbnail_url,
-                     bp.is_published, bp.created_at, bp.updated_at, c.name AS category_name
+                     bp.is_published, bp.created_at, bp.updated_at, bp.deleted_at, c.name AS category_name
               FROM blog_posts bp
               LEFT JOIN categories c ON bp.category_id = c.id
-              WHERE bp.is_published = TRUE AND c.slug = @CategorySlug
+              WHERE bp.is_published = TRUE AND bp.deleted_at IS NULL AND c.slug = @CategorySlug
               ORDER BY bp.published_at DESC
               LIMIT @Limit",
             new { CategorySlug = categorySlug, Limit = limit });
@@ -82,6 +82,7 @@ public class BlogPostRepository(IDbConnectionFactory connectionFactory) : BaseRe
                      bp.is_published, bp.created_at, bp.updated_at, c.name AS category_name
               FROM blog_posts bp
               LEFT JOIN categories c ON bp.category_id = c.id
+              WHERE bp.deleted_at IS NULL
               ORDER BY bp.created_at DESC");
     }
 
@@ -94,13 +95,14 @@ public class BlogPostRepository(IDbConnectionFactory connectionFactory) : BaseRe
         using var reader = await conn.QueryMultipleAsync(
             @"SELECT bp.id, bp.title, bp.content, bp.slug, bp.category_id, bp.tags, bp.author_id,
                      bp.published_at, bp.view_count, bp.seo_title, bp.seo_description, bp.thumbnail_url,
-                     bp.is_published, bp.created_at, bp.updated_at, c.name AS category_name
+                     bp.is_published, bp.created_at, bp.updated_at, bp.deleted_at, c.name AS category_name
               FROM blog_posts bp
               LEFT JOIN categories c ON bp.category_id = c.id
+              WHERE bp.deleted_at IS NULL
               ORDER BY bp.created_at DESC
               LIMIT @PageSize OFFSET @Offset;
 
-              SELECT COUNT(*) FROM blog_posts;",
+              SELECT COUNT(*) FROM blog_posts WHERE deleted_at IS NULL;",
             new { PageSize = pageSize, Offset = offset });
 
         var items = (await reader.ReadAsync<BlogPost>()).ToList();
@@ -109,6 +111,30 @@ public class BlogPostRepository(IDbConnectionFactory connectionFactory) : BaseRe
         return (items, total);
     }
 
+    public async Task<(IEnumerable<BlogPost> Items, int Total)> GetArchivedPagedAsync(
+        int page, int pageSize, CancellationToken cancellationToken = default)
+    {
+        using var conn = Conn();
+        var offset = (page - 1) * pageSize;
+
+        using var reader = await conn.QueryMultipleAsync(
+            @"SELECT bp.id, bp.title, bp.content, bp.slug, bp.category_id, bp.tags, bp.author_id,
+                     bp.published_at, bp.view_count, bp.seo_title, bp.seo_description, bp.thumbnail_url,
+                     bp.is_published, bp.created_at, bp.updated_at, bp.deleted_at, c.name AS category_name
+              FROM blog_posts bp
+              LEFT JOIN categories c ON bp.category_id = c.id
+              WHERE bp.deleted_at IS NOT NULL
+              ORDER BY bp.deleted_at DESC
+              LIMIT @PageSize OFFSET @Offset;
+
+              SELECT COUNT(*) FROM blog_posts WHERE deleted_at IS NOT NULL;",
+            new { PageSize = pageSize, Offset = offset });
+
+        var items = (await reader.ReadAsync<BlogPost>()).ToList();
+        var total = await reader.ReadFirstAsync<int>();
+        return (items, total);
+    }
+
     public async Task<int> CreateAsync(BlogPost post, CancellationToken cancellationToken = default)
     {
         using var conn = Conn();
@@ -130,19 +156,34 @@ public class BlogPostRepository(IDbConnectionFactory connectionFactory) : BaseRe
                   tags = @Tags, author_id = @AuthorId, published_at = @PublishedAt,
                   seo_title = @SeoTitle, seo_description = @SeoDescription,
                   thumbnail_url = @ThumbnailUrl, is_published = @IsPublished, updated_at = NOW()
-              WHERE id = @Id",
+              WHERE id = @Id AND deleted_at IS NULL",
             post);
     }
 
     public async Task DeleteAsync(int id, CancellationToken cancellationToken = default)
+    {
+        await ArchiveAsync(id, cancellationToken);
+    }
+
+    public async Task ArchiveAsync(int id, CancellationToken cancellationToken = default)
     {
         using var conn = Conn();
-        await conn.ExecuteAsync("DELETE FROM blog_posts WHERE id = @Id", new { Id = id });
+        await conn.ExecuteAsync(
+            "UPDATE blog_posts SET deleted_at = NOW(), updated_at = NOW() WHERE id = @Id AND deleted_at IS NULL",
+            new { Id = id });
+    }
+
+    public async Task RestoreAsync(int id, CancellationToken cancellationToken = default)
+    {
+        using var conn = Conn();
+        await conn.ExecuteAsync(
+            "UPDATE blog_posts SET deleted_at = NULL, updated_at = NOW() WHERE id = @Id AND deleted_at IS NOT NULL",
+            new { Id = id });
     }
 
     public async Task IncrementViewCountAsync(int id, CancellationToken cancellationToken = default)
     {
         using var conn = Conn();
-        await conn.ExecuteAsync("UPDATE blog_posts SET view_count = view_count + 1 WHERE id = @Id", new { Id = id });
+        await conn.ExecuteAsync("UPDATE blog_posts SET view_count = view_count + 1 WHERE id = @Id AND deleted_at IS NULL", new { Id = id });
     }
 }

TaxBaik.Infrastructure/Repositories/InquiryRepository.cs

@@ -112,6 +112,23 @@ public class InquiryRepository(IDbConnectionFactory connectionFactory) : BaseRep
             new { Id = id, AdminMemo = adminMemo });
     }
 
+    public async Task UpdateAsync(Inquiry inquiry, CancellationToken cancellationToken = default)
+    {
+        using var conn = Conn();
+        await conn.ExecuteAsync(
+            @"UPDATE inquiries
+              SET name = @Name,
+                  phone = @Phone,
+                  email = @Email,
+                  service_type = @ServiceType,
+                  message = @Message,
+                  status = @Status,
+                  admin_memo = @AdminMemo,
+                  updated_at = NOW()
+              WHERE id = @Id",
+            inquiry);
+    }
+
     public async Task LinkClientAsync(int inquiryId, int clientId, CancellationToken cancellationToken = default)
     {
         using var conn = Conn();

TaxBaik.Web.Client/Components/Admin/App.razor

@@ -11,18 +11,15 @@
     <link href="https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;700&display=swap" rel="stylesheet" />
     <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet" />
     <link href="_content/MudBlazor/MudBlazor.min.css" rel="stylesheet" />
-    <!-- EasyMDE 마크다운 에디터 -->
-    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/easymde@2.18.0/dist/easymde.min.css" />
-    <script src="https://cdn.jsdelivr.net/npm/easymde@2.18.0/dist/easymde.min.js"></script>
-    <!-- Marked 라이브러리 (EasyMDE 미리보기용) -->
-    <script src="https://cdn.jsdelivr.net/npm/marked@11.1.1/marked.min.js"></script>
     <script>
+        window.taxbaikAdminBuildVersion = 'unknown';
+        window.taxbaikAdminComponent = 'AdminApp';
         document.documentElement.classList.toggle(
             'admin-login-route',
             window.location.pathname.toLowerCase().endsWith('/admin/login'));
     </script>
     <link rel="stylesheet" href="css/admin.css" />
-    <component type="typeof(HeadOutlet)" render-mode="InteractiveServer" />
+    <component type="typeof(HeadOutlet)" render-mode="InteractiveWebAssembly" />
 </head>
 <body>
     <div id="components-reconnect-modal" class="admin-reconnect-modal">
@@ -32,19 +29,28 @@
             <span style="font-size: 0.85rem; margin-top: 0.5rem; opacity: 0.8;">자동으로 페이지를 새로고침합니다. 잠시만 기다려주세요.</span>
         </div>
     </div>
-    <div id="blazor-loading" class="blazor-loading-overlay show">
+    <div id="blazor-loading" class="blazor-loading-overlay">
         <div class="blazor-loading-spinner">
             <div class="spinner"></div>
             <p>로드 중...</p>
         </div>
     </div>
     <MudThemeProvider @bind-IsDarkMode="isDarkMode" Theme="mudTheme" />
-    <Routes @rendermode="new InteractiveServerRenderMode(prerender: true)" />
+    <Routes @rendermode="new InteractiveWebAssemblyRenderMode(prerender: false)" />
-    <script src="_content/MudBlazor/MudBlazor.min.js"></script>
+    <script src="/taxbaik/_content/MudBlazor/MudBlazor.min.js"></script>
-    <script src="js/admin-session.js"></script>
+    <script src="/taxbaik/js/admin-session.js"></script>
-    <script src="_framework/blazor.web.js"></script>
+    <script src="/taxbaik/_framework/blazor.web.js"></script>
-    <script>window.taxbaikAdminSession?.bindLoginForm();</script>
+    <script>
-    <script>window.taxbaikAdminSession?.watchReconnect();</script>
+        if (window.taxbaikAdminSession && typeof window.taxbaikAdminSession.initErrorLogging === 'function') {
+            window.taxbaikAdminSession.initErrorLogging();
+        }
+        if (window.taxbaikAdminSession && typeof window.taxbaikAdminSession.bindLoginForm === 'function') {
+            window.taxbaikAdminSession.bindLoginForm();
+        }
+        if (window.taxbaikAdminSession && typeof window.taxbaikAdminSession.watchReconnect === 'function') {
+            window.taxbaikAdminSession.watchReconnect();
+        }
+    </script>
 </body>
 </html>
 

TaxBaik.Web.Client/Components/Admin/Forms/InquiryForm.razor

@@ -0,0 +1,93 @@
+@using TaxBaik.Application.DTOs
+@using TaxBaik.Application.Services
+@using TaxBaik.WasmClient.Components.Admin.Shared
+
+<MudForm @ref="form">
+    <AdminFormSection Title="연락처" Description="고객 식별과 기본 회신 정보입니다." CssClass="mb-4">
+        <MudTextField @bind-Value="model.Name" Label="이름"
+            Variant="Variant.Outlined" Class="mb-4" Required="true" />
+
+        <MudTextField @bind-Value="model.Phone" Label="전화번호 (예: 010-1234-5678)"
+            Variant="Variant.Outlined" Class="mb-4" Required="true" />
+
+        <MudTextField @bind-Value="model.Email" Label="이메일"
+            Variant="Variant.Outlined" Class="mb-4" InputType="InputType.Email" />
+    </AdminFormSection>
+
+    <AdminFormSection Title="문의 내용" Description="운영 분류와 처리 메모를 함께 관리합니다." CssClass="mb-4">
+        <CommonCodeSelect @bind-Value="model.ServiceType" Group="INQUIRY_SERVICE_TYPE" Label="문의 유형" Class="mb-4" />
+
+        <MudTextField @bind-Value="model.Message" Label="문의 내용"
+            Variant="Variant.Outlined" Lines="5" Class="mb-4" Required="true" />
+
+        <CommonCodeSelect @bind-Value="model.Status" Group="INQUIRY_STATUS" Label="상태" Class="mb-4" />
+
+        <MudTextField @bind-Value="model.AdminMemo" Label="관리 메모"
+            Variant="Variant.Outlined" Lines="3" Class="mb-4" />
+    </AdminFormSection>
+
+    <AdminFormActions SubmitText="@ButtonText"
+                      LoadingText="저장 중..."
+                      CancelText="취소"
+                      SubmitIcon="@Icons.Material.Filled.Save"
+                      OnSubmit="@HandleSubmit"
+                      OnCancel="@OnCancel"
+                      IsSubmitting="false" />
+</MudForm>
+
+@code {
+    [Parameter, EditorRequired]
+    public string ButtonText { get; set; } = "저장";
+
+    [Parameter]
+    public EventCallback<InquiryFormModel> OnSubmit { get; set; }
+
+    [Parameter]
+    public EventCallback OnCancel { get; set; }
+
+    [Parameter]
+    public InquiryFormModel? InitialData { get; set; }
+
+    private MudForm? form;
+    private InquiryFormModel model = new();
+    protected override async Task OnInitializedAsync()
+    {
+        if (InitialData != null)
+        {
+            model = new InquiryFormModel
+            {
+                Name = InitialData.Name,
+                Phone = InitialData.Phone,
+                Email = InitialData.Email,
+                ServiceType = InitialData.ServiceType,
+                Message = InitialData.Message,
+                Status = InitialData.Status,
+                AdminMemo = InitialData.AdminMemo
+            };
+        }
+
+    }
+
+    private async Task HandleSubmit()
+    {
+        if (form == null)
+            return;
+
+        await form.Validate();
+        if (!form.IsValid)
+            return;
+
+        await OnSubmit.InvokeAsync(model);
+    }
+
+    public class InquiryFormModel
+    {
+        public string Name { get; set; } = "";
+        public string Phone { get; set; } = "";
+        public string? Email { get; set; }
+        public string ServiceType { get; set; } = "기타";
+        public string Message { get; set; } = "";
+        public string Status { get; set; } = "new";
+        public string? AdminMemo { get; set; }
+    }
+}

TaxBaik.Web.Client/Components/Admin/Layout/MainLayout.razor

@@ -0,0 +1,6 @@
+@inherits LayoutComponentBase
+
+<AdminShell>
+    <AdminTelemetryContext />
+    @Body
+</AdminShell>

TaxBaik.Web.Client/Components/Admin/Pages/AdminIndex.razor

@@ -1,4 +1,5 @@
 @page "/admin"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @inject NavigationManager NavigationManager
 

TaxBaik.Web.Client/Components/Admin/Pages/Announcements/AnnouncementEdit.razor

@@ -1,8 +1,10 @@
 @page "/admin/announcements/create"
 @page "/admin/announcements/{Id:int}/edit"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Application.DTOs
 @using TaxBaik.Web.Services
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject IAnnouncementBrowserClient AnnouncementClient
 @inject NavigationManager Navigation
 @inject ISnackbar Snackbar
@@ -37,13 +39,10 @@
             </MudItem>
 
             <MudItem xs="12" sm="6">
-                <MudSelect @bind-Value="model.DisplayType"
+                <CommonCodeSelect @bind-Value="model.DisplayType"
+                                  Group="ANNOUNCEMENT_DISPLAY_TYPE"
                                   Label="유형"
-                           Variant="Variant.Outlined">
+                                  Class="mb-0" />
-                    <MudSelectItem Value="@("info")">일반 (파란색)</MudSelectItem>
-                    <MudSelectItem Value="@("banner")">배너 (주황색) — 중요 이벤트</MudSelectItem>
-                    <MudSelectItem Value="@("urgent")">긴급 (빨간색) — 마감 임박</MudSelectItem>
-                </MudSelect>
             </MudItem>
 
             <MudItem xs="12" sm="6">

TaxBaik.Web.Client/Components/Admin/Pages/Announcements/AnnouncementList.razor

@@ -1,4 +1,5 @@
 @page "/admin/announcements"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Web.Services
 @using TaxBaik.Domain.Entities
@@ -27,10 +28,9 @@
                   AdornmentIcon="@Icons.Material.Filled.Search" IconSize="Size.Medium" Class="flex-grow-1" Immediate="true" Clearable="true" />
 </div>
 
-<MudPaper Class="admin-surface" Elevation="0">
+<AdminDataPanel Loading="@(announcements is null)" SkeletonContent="@AnnouncementSkeleton">
     @if (announcements is null)
     {
-        <MudProgressLinear Indeterminate="true" />
     }
     else if (!FilteredAnnouncements.Any())
     {
@@ -98,7 +98,7 @@
             검색 결과 @(FilteredAnnouncements.Count())개 · 총 @(announcements.Count)개
         </MudText>
     }
-</MudPaper>
+</AdminDataPanel>
 
 @code {
     [CascadingParameter]
@@ -107,14 +107,20 @@
     private List<Announcement>? announcements;
     private string searchQuery = "";
 
+    private RenderFragment AnnouncementSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 5);
+        builder.AddAttribute(2, "Columns", 4);
+        builder.CloseComponent();
+    };
+
     private IEnumerable<Announcement> FilteredAnnouncements => announcements?
         .Where(a => string.IsNullOrEmpty(searchQuery) || 
                     a.Title.Contains(searchQuery, StringComparison.OrdinalIgnoreCase))
         .OrderBy(a => a.SortOrder) ?? Enumerable.Empty<Announcement>();
 
-    protected override async Task OnAfterRenderAsync(bool firstRender)
+    protected override async Task OnInitializedAsync()
-    {
-        if (firstRender)
     {
         if (AuthStateTask != null)
         {
@@ -122,8 +128,6 @@
             if (authState.User.Identity?.IsAuthenticated == true)
             {
                 await LoadAsync();
-                    StateHasChanged();
-                }
             }
         }
     }

TaxBaik.Web.Client/Components/Admin/Pages/Blog/BlogCreate.razor

@@ -0,0 +1,66 @@
+@page "/admin/blog/create"
+@rendermode InteractiveWebAssembly
+@attribute [Authorize]
+@using TaxBaik.Application.DTOs
+@using TaxBaik.WasmClient.Components.Admin.Pages.Blog
+@inject IBlogBrowserClient BlogClient
+@inject ICategoryBrowserClient CategoryClient
+@inject NavigationManager Navigation
+@inject ISnackbar Snackbar
+
+<PageTitle>새 포스트 작성</PageTitle>
+
+<AdminCrudPageShell Title="새 포스트 작성"
+                    Eyebrow="Content"
+                    Subtitle="새로운 블로그 포스트를 작성합니다."
+                    Loading="@false"
+                    OnCancel="@GoBack">
+    <MudPaper Class="pa-4 mt-4" Elevation="1">
+        <BlogForm Model="model" Categories="categories" SubmitText="저장" OnSubmit="SavePost" OnCancel="GoBack" />
+    </MudPaper>
+</AdminCrudPageShell>
+
+@code {
+    private IReadOnlyList<Domain.Entities.Category> categories = [];
+    private BlogForm.BlogFormModel model = new();
+
+    protected override async Task OnInitializedAsync()
+    {
+        categories = await CategoryClient.GetAllAsync();
+    }
+
+    private void GoBack()
+    {
+        Navigation.NavigateTo("/taxbaik/admin/blog");
+    }
+
+    private async Task SavePost()
+    {
+        try
+        {
+            var result = await BlogClient.CreateAsync(new CreateBlogPostDto
+            {
+                Title = model.Title,
+                Content = model.Content,
+                CategoryId = model.CategoryId,
+                Tags = model.Tags,
+                SeoTitle = model.SeoTitle,
+                SeoDescription = model.SeoDescription,
+                IsPublished = model.IsPublished
+            });
+
+            if (result == null)
+            {
+                Snackbar.Add("포스트 저장에 실패했습니다.", Severity.Error);
+                return;
+            }
+
+            Snackbar.Add("포스트가 저장되었습니다.", Severity.Success);
+            Navigation.NavigateTo("/taxbaik/admin/blog");
+        }
+        catch (ValidationException ex)
+        {
+            Snackbar.Add(ex.Message, Severity.Error);
+        }
+    }
+}

TaxBaik.Web.Client/Components/Admin/Pages/Blog/BlogEdit.razor

@@ -0,0 +1,155 @@
+@page "/admin/blog/{id:int}/edit"
+@rendermode InteractiveWebAssembly
+@attribute [Authorize]
+@using TaxBaik.Application.DTOs
+@using TaxBaik.WasmClient.Components.Admin.Pages.Blog
+@inject IBlogBrowserClient BlogClient
+@inject ICategoryBrowserClient CategoryClient
+@inject NavigationManager Navigation
+@inject ISnackbar Snackbar
+@inject IDialogService DialogService
+
+<PageTitle>포스트 수정</PageTitle>
+
+<AdminCrudPageShell Title="포스트 수정"
+                    Eyebrow="Content"
+                    Subtitle="블로그 포스트를 수정합니다."
+                    Loading="@isLoading"
+                    SkeletonContent="@EditorSkeleton"
+                    OnCancel="@GoBack">
+    @if (post == null)
+{
+    <MudAlert Severity="Severity.Error" Class="mt-4">포스트를 찾을 수 없습니다.</MudAlert>
+}
+else
+{
+    <MudPaper Class="pa-4 mt-4" Elevation="1">
+        <BlogForm Model="model" Categories="categories" SubmitText="저장" OnSubmit="SavePost" />
+        <div class="mt-4">
+            <MudButton Variant="Variant.Outlined" Color="Color.Error" @onclick="DeletePost">삭제</MudButton>
+        </div>
+    </MudPaper>
+}
+</AdminCrudPageShell>
+
+@code {
+    [Parameter]
+    public int Id { get; set; }
+
+    private TaxBaik.Application.DTOs.BlogPostResponseDto? post;
+    private IReadOnlyList<Domain.Entities.Category> categories = [];
+    private BlogForm.BlogFormModel model = new();
+    private bool isLoading = true;
+
+    private RenderFragment EditorSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 5);
+        builder.AddAttribute(2, "Columns", 3);
+        builder.CloseComponent();
+    };
+
+    protected override async Task OnInitializedAsync()
+    {
+        try
+        {
+            post = await BlogClient.GetByIdAsync(Id);
+            if (post != null)
+            {
+                categories = await CategoryClient.GetAllAsync();
+                MapPostToModel(post);
+            }
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"포스트 로드 실패: {ex.Message}", Severity.Error);
+        }
+        finally
+        {
+            isLoading = false;
+        }
+    }
+
+    private void MapPostToModel(TaxBaik.Application.DTOs.BlogPostResponseDto post)
+    {
+        model.Title = post.Title;
+        model.Content = post.Content;
+        model.CategoryId = post.CategoryId;
+        model.Tags = post.Tags;
+        model.SeoTitle = post.SeoTitle;
+        model.SeoDescription = post.SeoDescription;
+        model.IsPublished = post.IsPublished;
+    }
+
+    private void GoBack()
+    {
+        Navigation.NavigateTo("/taxbaik/admin/blog");
+    }
+
+    private async Task SavePost()
+    {
+        if (post == null)
+            return;
+
+        try
+        {
+            var result = await BlogClient.UpdateAsync(post.Id, new CreateBlogPostDto
+            {
+                Title = model.Title,
+                Content = model.Content,
+                CategoryId = model.CategoryId,
+                Tags = model.Tags,
+                SeoTitle = model.SeoTitle,
+                SeoDescription = model.SeoDescription,
+                IsPublished = model.IsPublished
+            });
+
+            if (result == null)
+            {
+                Snackbar.Add("저장 실패: 포스트를 저장하지 못했습니다.", Severity.Error);
+                return;
+            }
+
+            Snackbar.Add("포스트가 저장되었습니다.", Severity.Success);
+            Navigation.NavigateTo("/taxbaik/admin/blog");
+        }
+        catch (ValidationException ex)
+        {
+            Snackbar.Add(ex.Message, Severity.Error);
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"저장 실패: {ex.Message}", Severity.Error);
+        }
+    }
+
+    private async Task DeletePost()
+    {
+        if (post == null)
+            return;
+
+        var result = await DialogService.ShowMessageBox(
+            "포스트 삭제",
+            "정말 삭제하시겠습니까? 이 작업은 취소할 수 없습니다.",
+            "삭제", "취소");
+
+        if (result != true)
+            return;
+
+        try
+        {
+            var deleted = await BlogClient.DeleteAsync(post.Id);
+            if (!deleted)
+            {
+                Snackbar.Add("삭제 실패: 포스트를 삭제하지 못했습니다.", Severity.Error);
+                return;
+            }
+            Snackbar.Add("포스트가 삭제되었습니다.", Severity.Success);
+            Navigation.NavigateTo("/taxbaik/admin/blog");
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"삭제 실패: {ex.Message}", Severity.Error);
+        }
+    }
+}

TaxBaik.Web.Client/Components/Admin/Pages/Blog/BlogForm.razor

@@ -0,0 +1,84 @@
+@using TaxBaik.Application.DTOs
+@using TaxBaik.Domain.Entities
+
+<MudForm @ref="form">
+    <AdminFormSection Title="기본 정보" Description="제목과 카테고리, 발행 여부를 먼저 설정합니다." CssClass="mb-4">
+        <MudTextField @bind-Value="Model.Title" Label="제목 *"
+            Variant="Variant.Outlined" Class="mb-4" Required="true" RequiredError="제목을 입력하세요." Counter="100" MaxLength="100" />
+
+        <MudSelect T="int?" @bind-Value="Model.CategoryId" Label="카테고리"
+            Variant="Variant.Outlined" Class="mb-4">
+            @foreach (var category in Categories)
+            {
+                <MudSelectItem T="int?" Value="@((int?)category.Id)">@category.Name</MudSelectItem>
+            }
+        </MudSelect>
+
+        <MudCheckBox @bind-Checked="Model.IsPublished" Label="즉시 발행" Class="mb-4" />
+    </AdminFormSection>
+
+    <AdminFormSection Title="본문" Description="SEO와 실제 노출 본문을 함께 관리합니다." CssClass="mb-4">
+        <MudTextField @bind-Value="Model.Content" Label="본문 내용 *"
+            Variant="Variant.Outlined" Lines="16" Required="true" RequiredError="본문 내용을 입력하세요."
+            Class="mb-4" />
+
+        <MudTextField @bind-Value="Model.Tags" Label="태그 (쉼표로 구분)"
+            Variant="Variant.Outlined" Class="mb-4" />
+
+        <MudTextField @bind-Value="Model.SeoTitle" Label="SEO 제목"
+            Variant="Variant.Outlined" Class="mb-4" />
+
+        <MudTextField @bind-Value="Model.SeoDescription" Label="SEO 설명"
+            Variant="Variant.Outlined" Lines="3" Class="mb-4" />
+    </AdminFormSection>
+
+    <AdminFormActions SubmitText="@SubmitText"
+                      LoadingText="저장 중..."
+                      CancelText="취소"
+                      SubmitIcon="@Icons.Material.Filled.Save"
+                      OnSubmit="@HandleSubmit"
+                      OnCancel="@OnCancel"
+                      IsSubmitting="false" />
+</MudForm>
+
+@code {
+    [Parameter, EditorRequired]
+    public BlogFormModel Model { get; set; } = new();
+
+    [Parameter]
+    public IReadOnlyList<Category> Categories { get; set; } = [];
+
+    [Parameter]
+    public string SubmitText { get; set; } = "저장";
+
+    [Parameter]
+    public EventCallback OnSubmit { get; set; }
+
+    [Parameter]
+    public EventCallback OnCancel { get; set; }
+
+    private MudForm? form;
+
+    private async Task HandleSubmit()
+    {
+        if (form == null)
+            return;
+
+        await form.Validate();
+        if (!form.IsValid)
+            return;
+
+        await OnSubmit.InvokeAsync();
+    }
+
+    public class BlogFormModel
+    {
+        public string Title { get; set; } = "";
+        public string Content { get; set; } = "";
+        public int? CategoryId { get; set; }
+        public string? Tags { get; set; }
+        public string? SeoTitle { get; set; }
+        public string? SeoDescription { get; set; }
+        public bool IsPublished { get; set; }
+    }
+}

TaxBaik.Web.Client/Components/Admin/Pages/Blog/BlogList.razor

@@ -1,4 +1,5 @@
 @page "/admin/blog"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @inject IBlogBrowserClient BlogClient
 @inject ISnackbar Snackbar
@@ -7,6 +8,14 @@
 
 <AdminPageHeader Title="블로그 관리" Eyebrow="Content" Subtitle="검색 유입 콘텐츠의 발행 상태와 성과를 관리합니다.">
     <ChildContent>
+        <MudButton Variant="Variant.Outlined" Color="Color.Secondary" StartIcon="@Icons.Material.Filled.Restore"
+                   OnClick="ToggleArchiveView">
+            @(showArchived ? "전체 글 보기" : "숨김 글 보기")
+        </MudButton>
+        <MudButton Variant="Variant.Outlined" Color="Color.Secondary" StartIcon="@Icons.Material.Filled.Refresh"
+                   OnClick="Reload">
+            새로고침
+        </MudButton>
         <MudButton Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.EditNote"
                    Href="/taxbaik/admin/blog/create">새 포스트 작성</MudButton>
     </ChildContent>
@@ -17,14 +26,13 @@
                   AdornmentIcon="@Icons.Material.Filled.Search" IconSize="Size.Medium" Class="flex-grow-1" Immediate="true" Clearable="true" />
 </div>
 
-<MudPaper Class="admin-surface mb-4" Elevation="0">
+<AdminDataPanel Loading="@isLoading">
-    <MudStack Row="true" AlignItems="AlignItems.Center" Justify="Justify.SpaceBetween">
+    <MudStack Row="true" AlignItems="AlignItems.Center" Justify="Justify.SpaceBetween" Class="mb-3">
         <MudText Typo="Typo.subtitle1">@($"검색 결과 {FilteredPosts.Count()}개 / 전체 포스트 {totalPosts}개")</MudText>
         <MudText Typo="Typo.body2">페이지 @currentPage / @totalPages</MudText>
     </MudStack>
-</MudPaper>
 
-<MudDataGrid Items="@FilteredPosts" Striped="true" Hoverable="true" Loading="@isLoading" Class="admin-grid">
+    <MudDataGrid Items="@FilteredPosts" Striped="true" Hoverable="true" Class="admin-grid">
         <Columns>
             <PropertyColumn Property="x => x.Title" Title="제목" />
             <PropertyColumn Property="x => x.IsPublished" Title="발행">
@@ -39,8 +47,16 @@
                 <CellTemplate Context="cell">
                     <MudButton Variant="Variant.Outlined" Size="Size.Small" Color="Color.Primary"
                         Href="@($"/taxbaik/admin/blog/{cell.Item.Id}/edit")">수정하기</MudButton>
+                    @if (showArchived)
+                    {
+                        <MudButton Variant="Variant.Text" Size="Size.Small" Color="Color.Success"
+                            @onclick="@(async () => await RestorePost(cell.Item.Id))">복원</MudButton>
+                    }
+                    else
+                    {
                         <MudButton Variant="Variant.Text" Size="Size.Small" Color="Color.Error"
                             @onclick="@(async () => await DeletePost(cell.Item.Id))">삭제</MudButton>
+                    }
                 </CellTemplate>
             </TemplateColumn>
         </Columns>
@@ -50,6 +66,7 @@
         <MudButton Variant="Variant.Outlined" Disabled="@(currentPage <= 1 || isLoading)" @onclick="PreviousPage">이전</MudButton>
         <MudButton Variant="Variant.Outlined" Disabled="@(currentPage >= totalPages || isLoading)" @onclick="NextPage">다음</MudButton>
     </MudStack>
+</AdminDataPanel>
 
 @code {
     [CascadingParameter]
@@ -61,6 +78,7 @@
     private int currentPage = 1;
     private int totalPages = 1;
     private int totalPosts = 0;
+    private bool showArchived;
     private const int PageSize = 20;
 
     private IEnumerable<TaxBaik.Application.DTOs.BlogPostResponseDto> FilteredPosts => posts
@@ -85,7 +103,9 @@
         isLoading = true;
         try
         {
-            var result = await BlogClient.GetAdminPagedAsync(currentPage, PageSize);
+            var result = showArchived
+                ? await BlogClient.GetArchivedPagedAsync(currentPage, PageSize)
+                : await BlogClient.GetAdminPagedAsync(currentPage, PageSize);
             posts = result.Items.ToList();
             totalPosts = result.Total;
             totalPages = Math.Max(1, (int)Math.Ceiling(totalPosts / (double)PageSize));
@@ -155,4 +175,26 @@
         Snackbar.Add("포스트가 삭제되었습니다.", Severity.Success);
         await LoadPosts();
     }
+
+    private async Task RestorePost(int postId)
+    {
+        var restored = await BlogClient.RestoreAsync(postId);
+        if (!restored)
+        {
+            Snackbar.Add("포스트 복원에 실패했습니다.", Severity.Error);
+            return;
+        }
+
+        Snackbar.Add("포스트가 복원되었습니다.", Severity.Success);
+        await LoadPosts();
+    }
+
+    private async Task ToggleArchiveView()
+    {
+        showArchived = !showArchived;
+        currentPage = 1;
+        await LoadPosts();
+    }
+
+    private async Task Reload() => await LoadPosts();
 }

TaxBaik.Web.Client/Components/Admin/Pages/Clients/ClientDetail.razor

@@ -1,8 +1,11 @@
 @page "/admin/clients/{ClientId:int}"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
-@using TaxBaik.Application.Services
+@using TaxBaik.Web.Services
-@inject ClientService ClientService
+@using TaxBaik.Web.Services.AdminClients
-@inject ConsultationService ConsultationService
+@using TaxBaik.WasmClient.Components.Admin.Shared
+@inject IClientBrowserClient ClientClient
+@inject IConsultingActivityBrowserClient ConsultingClient
 @inject NavigationManager Navigation
 @inject ISnackbar Snackbar
 
@@ -102,12 +105,7 @@
                             <MudDatePicker @bind-Date="newDate" Label="상담일" DateFormat="yyyy-MM-dd" />
                         </MudItem>
                         <MudItem xs="12" sm="6">
-                            <MudSelect T="string" @bind-Value="newServiceType" Label="서비스 분야">
+                        <CommonCodeSelect @bind-Value="newServiceType" Group="CONSULTING_ACTIVITY_TYPE" Label="서비스 분야" Placeholder="선택" Clearable="true" />
-                                @foreach (var t in ClientService.ServiceTypes)
-                                {
-                                    <MudSelectItem Value="@t">@t</MudSelectItem>
-                                }
-                            </MudSelect>
                         </MudItem>
                         <MudItem xs="12">
                             <MudTextField T="string" @bind-Value="newSummary" Label="상담 내용 *"
@@ -116,7 +114,7 @@
                         <MudItem xs="12" sm="6">
                             <MudSelect T="string" @bind-Value="newResult" Label="결과">
                                 <MudSelectItem Value="@("")">-</MudSelectItem>
-                                @foreach (var r in ConsultationService.Results)
+                                @foreach (var r in results)
                                 {
                                     <MudSelectItem Value="@r">@r</MudSelectItem>
                                 }
@@ -182,6 +180,7 @@
 
     private Domain.Entities.Client? client;
     private List<Domain.Entities.Consultation> consultations = [];
+    private static readonly string[] results = ["", "상담완료", "추가자료 요청", "견적발송", "계약전환", "보류"];
 
     private bool showAddForm;
     private DateTime? newDate = DateTime.Today;
@@ -197,8 +196,19 @@
 
     private async Task LoadAll()
     {
-        client = await ClientService.GetByIdAsync(ClientId);
+        client = await ClientClient.GetByIdAsync(ClientId);
-        consultations = (await ConsultationService.GetByClientIdAsync(ClientId)).ToList();
+        consultations = (await ConsultingClient.GetByClientIdAsync(ClientId))
+            .Select(c => new Domain.Entities.Consultation
+            {
+                Id = c.Id,
+                ClientId = c.ClientId,
+                ConsultationDate = c.ActivityDate,
+                ServiceType = c.ActivityType,
+                Summary = c.Description,
+                Result = null,
+                Fee = null
+            })
+            .ToList();
     }
 
     private void OpenAddConsultation()
@@ -215,30 +225,35 @@
     {
         try
         {
-            var c = new Domain.Entities.Consultation
+            var newId = await ConsultingClient.CreateAsync(
-            {
+                ClientId,
-                ClientId = ClientId,
+                string.IsNullOrWhiteSpace(newServiceType) ? "기타" : newServiceType,
-                ConsultationDate = newDate?.ToUniversalTime() ?? DateTime.UtcNow,
+                newDate?.ToUniversalTime() ?? DateTime.UtcNow,
-                ServiceType = string.IsNullOrWhiteSpace(newServiceType) ? null : newServiceType,
+                newSummary,
-                Summary = newSummary,
+                null,
-                Result = string.IsNullOrWhiteSpace(newResult) ? null : newResult,
+                null);
-                Fee = newFee
+
-            };
+            if (newId <= 0)
-            await ConsultationService.CreateAsync(c);
+                throw new Exception("상담 생성 실패");
+
             showAddForm = false;
-            consultations = (await ConsultationService.GetByClientIdAsync(ClientId)).ToList();
+            await LoadAll();
             Snackbar.Add("상담이 추가되었습니다.", Severity.Success);
         }
         catch (ValidationException ex)
         {
             Snackbar.Add(ex.Message, Severity.Error);
         }
+        catch (Exception ex)
+        {
+            Snackbar.Add(ex.Message, Severity.Error);
+        }
     }
 
     private async Task DeleteConsultation(int id)
     {
-        await ConsultationService.DeleteAsync(id);
+        await ConsultingClient.DeleteAsync(id);
-        consultations = (await ConsultationService.GetByClientIdAsync(ClientId)).ToList();
+        await LoadAll();
         Snackbar.Add("삭제되었습니다.", Severity.Info);
     }
 }

TaxBaik.Web.Client/Components/Admin/Pages/Clients/ClientEdit.razor

@@ -1,9 +1,11 @@
 @page "/admin/clients/create"
 @page "/admin/clients/{Id:int}/edit"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Application.DTOs
 @using TaxBaik.Web.Services
 @using TaxBaik.Domain.Entities
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject IClientBrowserClient ClientClient
 @inject NavigationManager Navigation
 @inject ISnackbar Snackbar
@@ -19,10 +21,9 @@
                StartIcon="@Icons.Material.Filled.ArrowBack">목록으로</MudButton>
 </section>
 
-<MudPaper Class="admin-surface" Elevation="0" Style="max-width:720px;">
+<AdminEditorPanel Loading="@isLoading" SkeletonContent="@ClientEditSkeleton">
     @if (isLoading)
     {
-        <MudProgressLinear Indeterminate="true" />
     }
     else
     {
@@ -54,20 +55,10 @@
                     <MudDivider />
                 </MudItem>
                 <MudItem xs="12" md="6">
-                    <MudSelect @bind-Value="dto.ServiceType" Label="서비스 유형" T="string" Clearable="true">
+                    <CommonCodeSelect @bind-Value="dto.ServiceType" Group="CLIENT_SERVICE_TYPE" Label="서비스 유형" Clearable="true" />
-                        @foreach (var t in ClientService.ServiceTypes)
-                        {
-                            <MudSelectItem Value="@t">@t</MudSelectItem>
-                        }
-                    </MudSelect>
                 </MudItem>
                 <MudItem xs="12" md="6">
-                    <MudSelect @bind-Value="dto.TaxType" Label="세금 유형" T="string" Clearable="true">
+                    <CommonCodeSelect @bind-Value="dto.TaxType" Group="CLIENT_TAX_TYPE" Label="세금 유형" Clearable="true" />
-                        @foreach (var t in ClientService.TaxTypes)
-                        {
-                            <MudSelectItem Value="@t">@t</MudSelectItem>
-                        }
-                    </MudSelect>
                 </MudItem>
 
                 @* 관리 정보 *@
@@ -76,18 +67,10 @@
                     <MudDivider />
                 </MudItem>
                 <MudItem xs="12" md="6">
-                    <MudSelect @bind-Value="dto.Status" Label="상태 *" T="string" Required="true">
+                    <CommonCodeSelect @bind-Value="dto.Status" Group="CLIENT_STATUS" Label="상태 *" Required="true" />
-                        <MudSelectItem Value="@("active")">활성</MudSelectItem>
-                        <MudSelectItem Value="@("inactive")">비활성</MudSelectItem>
-                    </MudSelect>
                 </MudItem>
                 <MudItem xs="12" md="6">
-                    <MudSelect @bind-Value="dto.Source" Label="유입 경로" T="string" Clearable="true">
+                    <CommonCodeSelect @bind-Value="dto.Source" Group="CLIENT_SOURCE" Label="유입 경로" Clearable="true" />
-                        @foreach (var s in ClientService.Sources)
-                        {
-                            <MudSelectItem Value="@s">@s</MudSelectItem>
-                        }
-                    </MudSelect>
                 </MudItem>
                 <MudItem xs="12">
                     <MudTextField @bind-Value="dto.Memo" Label="메모"
@@ -109,7 +92,7 @@
             </MudGrid>
         </MudForm>
     }
-</MudPaper>
+</AdminEditorPanel>
 
 @code {
     [Parameter] public int? Id { get; set; }
@@ -120,6 +103,13 @@
     private bool isLoading = true;
     private bool isSaving;
 
+    private RenderFragment ClientEditSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 6);
+        builder.AddAttribute(2, "Columns", 3);
+        builder.CloseComponent();
+    };
     protected override async Task OnInitializedAsync()
     {
         if (Id.HasValue)

TaxBaik.Web.Client/Components/Admin/Pages/Clients/ClientList.razor

@@ -1,4 +1,5 @@
 @page "/admin/clients"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Web.Services
 @using TaxBaik.Domain.Entities
@@ -9,18 +10,15 @@
 
 <PageTitle>고객 관리</PageTitle>
 
-<section class="admin-page-hero">
+<AdminPageHeader Title="고객 관리" Eyebrow="CRM" Subtitle="고객 카드를 등록하고 상담 이력을 관리합니다.">
-    <div>
+    <ChildContent>
-        <MudText Typo="Typo.caption" Class="admin-eyebrow">CRM</MudText>
-        <MudText Typo="Typo.h4" Class="admin-page-title">고객 관리</MudText>
-        <MudText Typo="Typo.body2" Class="admin-page-subtitle">고객 카드를 등록하고 상담 이력을 관리합니다.</MudText>
-    </div>
         <MudButton Variant="Variant.Filled" Color="Color.Primary"
                    StartIcon="@Icons.Material.Filled.PersonAdd"
                    Href="/taxbaik/admin/clients/create">
             고객 등록
         </MudButton>
-</section>
+    </ChildContent>
+</AdminPageHeader>
 
 @* 검색/필터 바 *@
 <MudPaper Class="admin-surface mb-3 pa-3" Elevation="0">
@@ -31,11 +29,7 @@
                           Immediate="false" OnKeyUp="@OnSearchKeyUp" />
         </MudItem>
         <MudItem xs="12" md="3">
-            <MudSelect @bind-Value="statusFilter" Label="상태" T="string">
+            <CommonCodeSelect @bind-Value="statusFilter" Group="CLIENT_STATUS" Label="상태" Placeholder="전체" Clearable="true" />
-                <MudSelectItem Value="@("")">전체</MudSelectItem>
-                <MudSelectItem Value="@("active")">활성</MudSelectItem>
-                <MudSelectItem Value="@("inactive")">비활성</MudSelectItem>
-            </MudSelect>
         </MudItem>
         <MudItem xs="12" md="2" Class="d-flex align-center">
             <MudButton Variant="Variant.Outlined" OnClick="@SearchAsync" FullWidth="true">검색</MudButton>
@@ -46,17 +40,13 @@
     </MudGrid>
 </MudPaper>
 
-<MudPaper Class="admin-surface" Elevation="0">
+<AdminDataPanel Loading="@(clients is null)" SkeletonContent="@ClientListSkeleton">
     @if (clients is null)
     {
-        <MudProgressLinear Indeterminate="true" />
     }
     else if (!clients.Any())
     {
-        <div class="pa-6 text-center">
+        <AdminEmptyState Icon="@Icons.Material.Filled.PeopleAlt" Message="등록된 고객이 없습니다." />
-            <MudIcon Icon="@Icons.Material.Filled.PeopleAlt" Style="font-size:3rem; opacity:.3;" />
-            <MudText Class="mt-2 text-muted">등록된 고객이 없습니다.</MudText>
-        </div>
     }
     else
     {
@@ -126,7 +116,7 @@
         }
         <MudText Typo="Typo.caption" Class="pa-2 text-muted">총 @(totalCount)명</MudText>
     }
-</MudPaper>
+</AdminDataPanel>
 
 @code {
     [CascadingParameter]
@@ -140,9 +130,15 @@
     private int totalPages;
     private const int PageSize = 20;
 
-    protected override async Task OnAfterRenderAsync(bool firstRender)
+    private RenderFragment ClientListSkeleton => builder =>
     {
-        if (firstRender)
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 5);
+        builder.AddAttribute(2, "Columns", 5);
+        builder.CloseComponent();
+    };
+
+    protected override async Task OnInitializedAsync()
     {
         if (AuthStateTask != null)
         {
@@ -150,8 +146,6 @@
             if (authState.User.Identity?.IsAuthenticated == true)
             {
                 await LoadAsync();
-                    StateHasChanged();
-                }
             }
         }
     }

TaxBaik.Web.Client/Components/Admin/Pages/CommonCodes.razor

@@ -0,0 +1,138 @@
+@page "/admin/common-codes"
+@rendermode InteractiveWebAssembly
+@using TaxBaik.Web.Services.AdminClients
+@using TaxBaik.Domain.Entities
+@attribute [Authorize]
+@inject ICommonCodeBrowserClient CommonCodeClient
+@inject ISnackbar Snackbar
+
+<PageTitle>공통관리</PageTitle>
+
+<AdminPageHeader Title="공통관리" Eyebrow="System" Subtitle="공통코드 그룹과 항목을 일관된 기준으로 관리합니다." />
+
+<MudGrid Spacing="2">
+    <MudItem XS="12" MD="4">
+        <CommonCodeGroupPanel Groups="groups"
+                             SelectedGroup="selectedGroup"
+                             SelectedGroupChanged="OnGroupChanged"
+                             OnCreateRequested="PrepareCreate" />
+    </MudItem>
+
+    <MudItem XS="12" MD="8">
+        <CommonCodeListPanel Loading="@isLoading"
+                             Codes="codes"
+                             EditModel="editModel"
+                             IsCreateMode="isCreateMode"
+                             Form="form"
+                             EditRequested="EditCode"
+                             DeleteRequested="DeleteCode"
+                             SaveRequested="SaveCode"
+                             ResetRequested="PrepareCreate" />
+    </MudItem>
+</MudGrid>
+
+@code {
+    private List<string> groups = [];
+    private List<CommonCode> codes = [];
+    private string selectedGroup = "";
+    private bool isLoading = true;
+    private CommonCode editModel = new();
+    private bool isCreateMode = true;
+
+    protected override async Task OnInitializedAsync()
+    {
+        groups = await CommonCodeClient.GetGroupsAsync();
+        selectedGroup = groups.FirstOrDefault() ?? "";
+        await LoadCodes();
+        PrepareCreate();
+    }
+
+    private async Task OnGroupChanged(string value)
+    {
+        selectedGroup = value;
+        await LoadCodes();
+        PrepareCreate();
+    }
+
+    private async Task LoadCodes()
+    {
+        isLoading = true;
+        codes = string.IsNullOrWhiteSpace(selectedGroup)
+            ? []
+            : await CommonCodeClient.GetByGroupAsync(selectedGroup);
+        isLoading = false;
+    }
+
+    private void PrepareCreate()
+    {
+        isCreateMode = true;
+        editModel = new CommonCode
+        {
+            CodeGroup = selectedGroup,
+            IsActive = true
+        };
+    }
+
+    private void EditCode(CommonCode code)
+    {
+        isCreateMode = false;
+        editModel = new CommonCode
+        {
+            CodeGroup = code.CodeGroup,
+            CodeValue = code.CodeValue,
+            CodeName = code.CodeName,
+            SortOrder = code.SortOrder,
+            IsActive = code.IsActive
+        };
+    }
+
+    private async Task SaveCode()
+    {
+        editModel.CodeGroup = editModel.CodeGroup?.Trim() ?? string.Empty;
+        editModel.CodeValue = editModel.CodeValue?.Trim() ?? string.Empty;
+        editModel.CodeName = editModel.CodeName?.Trim() ?? string.Empty;
+
+        if (string.IsNullOrWhiteSpace(editModel.CodeGroup) ||
+            string.IsNullOrWhiteSpace(editModel.CodeValue) ||
+            string.IsNullOrWhiteSpace(editModel.CodeName))
+        {
+            Snackbar.Add("그룹, 값, 이름은 모두 입력해야 합니다.", Severity.Error);
+            return;
+        }
+
+        if (editModel.CodeGroup.Any(char.IsWhiteSpace))
+        {
+            Snackbar.Add("code_group에는 공백을 넣을 수 없습니다.", Severity.Error);
+            return;
+        }
+
+        if (editModel.CodeValue.Any(char.IsWhiteSpace))
+        {
+            Snackbar.Add("code_value에는 공백을 넣을 수 없습니다.", Severity.Error);
+            return;
+        }
+
+        if (!await CommonCodeClient.UpsertAsync(editModel))
+        {
+            Snackbar.Add("저장 실패", Severity.Error);
+            return;
+        }
+
+        Snackbar.Add("저장되었습니다.", Severity.Success);
+        await LoadCodes();
+        PrepareCreate();
+    }
+
+    private async Task DeleteCode(CommonCode code)
+    {
+        if (!await CommonCodeClient.DeleteAsync(code.CodeGroup, code.CodeValue))
+        {
+            Snackbar.Add("삭제 실패", Severity.Error);
+            return;
+        }
+
+        Snackbar.Add("삭제되었습니다.", Severity.Success);
+        await LoadCodes();
+        PrepareCreate();
+    }
+}

TaxBaik.Web.Client/Components/Admin/Pages/Companies/CompanyCreate.razor

@@ -1,6 +1,7 @@
 @page "/admin/companies/create"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
-@using TaxBaik.Web.Components.Admin.Forms
+@using TaxBaik.WasmClient.Components.Admin.Forms
 @inject IApiClient ApiClient
 @inject NavigationManager Navigation
 @inject ISnackbar Snackbar

TaxBaik.Web.Client/Components/Admin/Pages/Companies/CompanyEdit.razor

@@ -1,6 +1,7 @@
 @page "/admin/companies/{id:int}/edit"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
-@using TaxBaik.Web.Components.Admin.Forms
+@using TaxBaik.WasmClient.Components.Admin.Forms
 @inject IApiClient ApiClient
 @inject NavigationManager Navigation
 @inject ISnackbar Snackbar
@@ -17,11 +18,8 @@
     <MudButton Variant="Variant.Outlined" StartIcon="@Icons.Material.Filled.Close" @onclick="GoBack">취소</MudButton>
 </section>
 
-@if (isLoading)
+<AdminEditorPanel Loading="@isLoading" SkeletonContent="@CompanySkeleton">
-{
+    @if (formModel == null)
-    <MudProgressLinear Color="Color.Primary" Indeterminate="true" Class="mt-4" />
-}
-else if (formModel == null)
     {
         <MudAlert Severity="Severity.Error" Class="mt-4">고객사를 찾을 수 없습니다.</MudAlert>
     }
@@ -37,6 +35,7 @@ else
             </MudButton>
         </MudPaper>
     }
+</AdminEditorPanel>
 
 @code {
     [Parameter]
@@ -45,6 +44,14 @@ else
     private CompanyForm.CompanyFormModel? formModel;
     private bool isLoading = true;
 
+    private RenderFragment CompanySkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 6);
+        builder.AddAttribute(2, "Columns", 3);
+        builder.CloseComponent();
+    };
+
     protected override async Task OnInitializedAsync()
     {
         try

TaxBaik.Web.Client/Components/Admin/Pages/Companies/CompanyList.razor

@@ -1,4 +1,5 @@
 @page "/admin/companies"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @inject IApiClient ApiClient
 @inject ISnackbar Snackbar

TaxBaik.Web.Client/Components/Admin/Pages/ConsultingActivities.razor

@@ -1,5 +1,7 @@
 @page "/admin/consulting-activities"
+@rendermode InteractiveWebAssembly
 @using TaxBaik.Web.Services.AdminClients
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject IConsultingActivityBrowserClient ActivityClient
 @inject IClientBrowserClient ClientClient
 @inject ISnackbar Snackbar
@@ -19,10 +21,9 @@
     </MudButton>
 </section>
 
-<MudPaper Class="admin-surface" Elevation="0">
+<AdminDataPanel Loading="@(activities is null)" SkeletonContent="@ActivitySkeleton">
     @if (activities is null)
     {
-        <MudProgressLinear Indeterminate="true" />
     }
     else if (activities.Count == 0)
     {
@@ -89,7 +90,7 @@
             </Columns>
         </MudDataGrid>
     }
-</MudPaper>
+</AdminDataPanel>
 
 <MudDialog @bind-IsVisible="isDialogOpen" Options="new DialogOptions { MaxWidth = MaxWidth.Small, FullWidth = true }">
     <TitleContent>
@@ -103,14 +104,7 @@
                     <MudSelectItem Value="@client.Id">@GetClientDisplayName(client)</MudSelectItem>
                 }
             </MudSelect>
-            <MudSelect T="string" @bind-Value="activityForm.ActivityType" Label="활동 유형" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" Required="true">
+            <CommonCodeSelect @bind-Value="activityForm.ActivityType" Group="CONSULTING_ACTIVITY_TYPE" Label="활동 유형" Class="mb-4" Required="true" />
-                <MudSelectItem Value="@("방문 상담")">방문 상담</MudSelectItem>
-                <MudSelectItem Value="@("전화 상담")">전화 상담</MudSelectItem>
-                <MudSelectItem Value="@("세무조사 대응 미팅")">세무조사 대응 미팅</MudSelectItem>
-                <MudSelectItem Value="@("카카오톡 상담")">카카오톡 상담</MudSelectItem>
-                <MudSelectItem Value="@("이메일 자료 접수")">이메일 자료 접수</MudSelectItem>
-                <MudSelectItem Value="@("기타")">기타</MudSelectItem>
-            </MudSelect>
             <MudDatePicker @bind-Date="activityForm.ActivityDate" Label="활동일" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" Required="true" />
             <MudTextField T="string" @bind-Value="activityForm.Description" Label="설명" Variant="Variant.Outlined" FullWidth="true" Lines="3" Class="mb-4" Required="true" />
             <MudDatePicker @bind-Date="activityForm.NextFollowupDate" Label="다음 팔로업일" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" />
@@ -134,9 +128,15 @@
     private ConsultingActivity? editingActivity;
     private ConsultingActivityForm activityForm = new();
 
-    protected override async Task OnAfterRenderAsync(bool firstRender)
+    private RenderFragment ActivitySkeleton => builder =>
     {
-        if (firstRender)
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 5);
+        builder.AddAttribute(2, "Columns", 4);
+        builder.CloseComponent();
+    };
+
+    protected override async Task OnInitializedAsync()
     {
         if (AuthStateTask != null)
         {
@@ -144,8 +144,6 @@
             if (authState.User.Identity?.IsAuthenticated == true)
             {
                 await LoadData();
-                    StateHasChanged();
-                }
             }
         }
     }

TaxBaik.Web.Client/Components/Admin/Pages/Contracts.razor

@@ -1,6 +1,7 @@
 @page "/admin/contracts"
+@rendermode InteractiveWebAssembly
 @using TaxBaik.Web.Services.AdminClients
-@using TaxBaik.Web.Components.Admin.Shared
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject IContractBrowserClient ContractClient
 @inject IClientBrowserClient ClientClient
 @inject ISnackbar Snackbar
@@ -27,9 +28,9 @@
     </MudButton>
 </section>
 
+<AdminEditorPanel Loading="@(contracts is null)" SkeletonContent="@ContractSkeleton">
 @if (contracts is null)
 {
-    <MudProgressLinear Indeterminate="true" />
 }
 else
 {
@@ -142,6 +143,7 @@ else
         </MudItem>
     </MudGrid>
 }
+</AdminEditorPanel>
 
 @code {
     [CascadingParameter]
@@ -156,6 +158,14 @@ else
     private Contract? selectedContract;
     private ContractForm contractForm = new();
 
+    private RenderFragment ContractSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 6);
+        builder.AddAttribute(2, "Columns", 4);
+        builder.CloseComponent();
+    };
+
     protected override async Task OnInitializedAsync()
     {
         if (AuthStateTask != null)

TaxBaik.Web.Client/Components/Admin/Pages/Dashboard.razor

@@ -0,0 +1,202 @@
+@page "/admin/dashboard"
+@rendermode InteractiveWebAssembly
+@attribute [Authorize]
+@using TaxBaik.Web.Services
+@using TaxBaik.WasmClient.Components.Admin.Shared
+@inject IAdminDashboardClient DashboardClient
+@inject NavigationManager Nav
+
+<PageTitle>대시보드</PageTitle>
+
+<section class="admin-page-hero">
+    <div>
+        <MudText Typo="Typo.caption" Class="admin-eyebrow">Overview</MudText>
+        <MudText Typo="Typo.h4" Class="admin-page-title">대시보드</MudText>
+        <MudText Typo="Typo.body2" Class="admin-page-subtitle">문의 흐름과 콘텐츠 상태를 한 화면에서 확인합니다.</MudText>
+    </div>
+    <MudButton Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Add" Href="/taxbaik/admin/blog/create">
+        새 포스트 작성
+    </MudButton>
+</section>
+
+@if (!string.IsNullOrEmpty(errorMessage))
+{
+    <MudAlert Severity="Severity.Error" Class="mb-4">@errorMessage</MudAlert>
+}
+
+<AdminDataPanel Loading="@isLoading" SkeletonContent="@DashboardSkeleton">
+    <div class="admin-metric-grid">
+        <AdminMetricCard Label="이번달 문의" Value="@summary.ThisMonthInquiries" Caption="월간 상담 유입 (클릭 시 이동)" Accent="accent-blue" Icon="💬" ValueColor="var(--primary-dark)" IconColor="var(--primary-color)" OnClick="@GoInquiries" />
+        <AdminMetricCard Label="신규 문의" Value="@summary.NewInquiries" Caption="처리 대기 (클릭 시 이동)" Accent="accent-amber" Icon="⚠️" ValueColor="var(--tertiary-dark)" IconColor="var(--tertiary-color)" OnClick="@GoNewInquiries" />
+        <AdminMetricCard Label="전체 포스트" Value="@summary.TotalPosts" Caption="콘텐츠 자산 (클릭 시 이동)" Accent="accent-slate" Icon="📄" ValueColor="#455a64" IconColor="#607d8b" OnClick="@GoBlog" />
+        <AdminMetricCard Label="발행된 포스트" Value="@summary.PublishedPosts" Caption="검색 노출 대상 (클릭 시 이동)" Accent="accent-green" Icon="🌐" ValueColor="var(--secondary-dark)" IconColor="var(--secondary-color)" OnClick="@GoBlog" />
+    </div>
+
+    @if (upcomingFilings.Count > 0)
+    {
+        <MudPaper Class="admin-surface mt-4" Elevation="0">
+            <div class="admin-section-header">
+                <div>
+                    <MudText Typo="Typo.h6">이번 달 마감 임박 신고</MudText>
+                    <MudText Typo="Typo.body2">30일 이내 신고 예정 건 (고객명 클릭 시 상세 카드로 연결)</MudText>
+                </div>
+                <MudButton Variant="Variant.Outlined" Color="Color.Primary" Href="/taxbaik/admin/tax-filings">전체 일정 보기</MudButton>
+            </div>
+            <MudSimpleTable Striped="true" Dense="true" Class="admin-table">
+                <thead>
+                    <tr>
+                        <th>고객</th>
+                        <th>신고 유형</th>
+                        <th>기한</th>
+                        <th>D-day</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    @foreach (var f in upcomingFilings)
+                    {
+                        var dday = BusinessDayCalculator.GetDday(DateOnly.FromDateTime(f.DueDate));
+                        var effectiveDueDate = BusinessDayCalculator.GetEffectiveDueDate(DateOnly.FromDateTime(f.DueDate));
+                        <tr>
+                            <td>
+                                <MudLink Href="@($"/taxbaik/admin/clients/{f.ClientId}")" Underline="Underline.Hover" Color="Color.Primary" Class="font-weight-bold">
+                                    @f.ClientName
+                                </MudLink>
+                            </td>
+                            <td>@f.FilingType</td>
+                            <td>@effectiveDueDate.ToDateTime(TimeOnly.MinValue).ToString("yyyy-MM-dd")</td>
+                            <td>
+                                @if (dday < 0)
+                                {
+                                    <MudChip T="string" Size="Size.Small" Color="Color.Dark">기한 초과 (@(-dday)일)</MudChip>
+                                }
+                                else if (dday <= 7)
+                                {
+                                    <MudChip T="string" Size="Size.Small" Color="Color.Error">D-@dday</MudChip>
+                                }
+                                else
+                                {
+                                    <span>D-@dday</span>
+                                }
+                            </td>
+                        </tr>
+                    }
+                </tbody>
+            </MudSimpleTable>
+        </MudPaper>
+    }
+
+    <MudPaper Class="admin-surface mt-4" Elevation="0">
+        <div class="admin-section-header">
+            <div>
+                <MudText Typo="Typo.h6">최근 문의</MudText>
+                <MudText Typo="Typo.body2">최근 유입된 상담 요청을 빠르게 확인합니다. (이름 클릭 시 상세 관리 화면으로 연계)</MudText>
+            </div>
+            <MudButton Variant="Variant.Outlined" Color="Color.Primary" Href="/taxbaik/admin/inquiries">문의 전체 보기</MudButton>
+        </div>
+        <MudSimpleTable Striped="true" Dense="true" Class="admin-table">
+            <thead>
+                <tr>
+                    <th>이름</th>
+                    <th>전화</th>
+                    <th>분야</th>
+                    <th>상태</th>
+                    <th>날짜</th>
+                </tr>
+            </thead>
+            <tbody>
+                @foreach (var inquiry in summary.RecentInquiries)
+                {
+                    <tr>
+                        <td>
+                            <MudLink Href="@($"/taxbaik/admin/inquiries?id={inquiry.Id}")" Underline="Underline.Hover" Color="Color.Primary" Class="font-weight-bold">
+                                @inquiry.Name
+                            </MudLink>
+                        </td>
+                        <td>@inquiry.Phone</td>
+                        <td>@inquiry.ServiceType</td>
+                        <td>
+                            <MudChip T="string" Size="Size.Small" Color="@StatusColor(inquiry.Status)">
+                                @GetStatusLabel(inquiry.Status)
+                            </MudChip>
+                        </td>
+                        <td>@inquiry.CreatedAt.ToString("yyyy-MM-dd")</td>
+                    </tr>
+                }
+            </tbody>
+        </MudSimpleTable>
+    </MudPaper>
+</AdminDataPanel>
+
+@code {
+    [CascadingParameter]
+    private Task<AuthenticationState>? AuthStateTask { get; set; }
+
+    private AdminDashboardSummary summary = new(0, 0, 0, 0, []);
+    private List<Domain.Entities.TaxFiling> upcomingFilings = [];
+    private string? errorMessage;
+    private bool isLoading = true;
+
+    private RenderFragment DashboardSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 6);
+        builder.AddAttribute(2, "Columns", 4);
+        builder.CloseComponent();
+    };
+
+    private void GoInquiries()
+    {
+        Nav.NavigateTo("/taxbaik/admin/inquiries");
+    }
+
+    private void GoNewInquiries()
+    {
+        Nav.NavigateTo("/taxbaik/admin/inquiries?status=new");
+    }
+
+    private void GoBlog()
+    {
+        Nav.NavigateTo("/taxbaik/admin/blog");
+    }
+
+    protected override async Task OnInitializedAsync()
+    {
+        if (AuthStateTask != null)
+        {
+            var authState = await AuthStateTask;
+            if (authState.User.Identity?.IsAuthenticated == true)
+            {
+                try
+                {
+                    var summaryTask = DashboardClient.GetSummaryAsync();
+                    var filingsTask = DashboardClient.GetUpcomingFilingsAsync(30);
+
+                    await Task.WhenAll(summaryTask, filingsTask);
+                    summary = await summaryTask;
+                    upcomingFilings = (await filingsTask).ToList();
+                }
+                catch (Exception ex)
+                {
+                    errorMessage = "대시보드 데이터를 불러올 수 없습니다.";
+                    Console.Error.WriteLine($"Dashboard error: {ex.Message}");
+                }
+                finally
+                {
+                    isLoading = false;
+                }
+            }
+        }
+    }
+
+    private static string GetStatusLabel(string status) => InquiryStatusMapper.Labels.GetValueOrDefault(status, status);
+
+    private static Color StatusColor(string status) => status switch
+    {
+        "new" => Color.Warning,
+        "consulting" => Color.Info,
+        "contracted" => Color.Success,
+        "rejected" => Color.Error,
+        "closed" => Color.Dark,
+        _ => Color.Default
+    };
+}

TaxBaik.Web.Client/Components/Admin/Pages/Faqs/FaqEdit.razor

@@ -1,5 +1,6 @@
 @page "/admin/faqs/create"
 @page "/admin/faqs/{Id:int}/edit"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Web.Services
 @using TaxBaik.Domain.Entities
@@ -18,13 +19,8 @@
                StartIcon="@Icons.Material.Filled.ArrowBack">목록으로</MudButton>
 </section>
 
+<AdminEditorPanel Loading="@isLoading" SkeletonContent="@FaqSkeleton">
     <MudPaper Class="admin-surface" Elevation="0" Style="max-width:720px;">
-    @if (isLoading)
-    {
-        <MudProgressLinear Indeterminate="true" />
-    }
-    else
-    {
         <MudForm @ref="form" @bind-IsValid="isValid">
             <MudGrid Spacing="3">
                 <MudItem xs="12">
@@ -43,12 +39,7 @@
                                   Placeholder="방문자에게 보여질 답변을 입력하세요." />
                 </MudItem>
                 <MudItem xs="12" md="6">
-                    <MudSelect @bind-Value="faq.Category" Label="카테고리" T="string" Clearable="true">
+                    <CommonCodeSelect @bind-Value="faq.Category" Group="FAQ_CATEGORY" Label="카테고리" Clearable="true" Placeholder="전체" />
-                        @foreach (var cat in FaqService.Categories)
-                        {
-                            <MudSelectItem Value="@cat">@cat</MudSelectItem>
-                        }
-                    </MudSelect>
                 </MudItem>
                 <MudItem xs="12" md="3">
                     <MudNumericField @bind-Value="faq.SortOrder"
@@ -73,8 +64,8 @@
                 </MudItem>
             </MudGrid>
         </MudForm>
-    }
     </MudPaper>
+</AdminEditorPanel>
 
 @code {
     [Parameter] public int? Id { get; set; }
@@ -85,6 +76,14 @@
     private bool isLoading = true;
     private bool isSaving;
 
+    private RenderFragment FaqSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 5);
+        builder.AddAttribute(2, "Columns", 3);
+        builder.CloseComponent();
+    };
+
     protected override async Task OnInitializedAsync()
     {
         if (Id.HasValue)

TaxBaik.Web.Client/Components/Admin/Pages/Faqs/FaqList.razor

@@ -1,4 +1,5 @@
 @page "/admin/faqs"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Web.Services
 @using TaxBaik.Domain.Entities
@@ -27,10 +28,9 @@
                   AdornmentIcon="@Icons.Material.Filled.Search" IconSize="Size.Medium" Class="flex-grow-1" Immediate="true" Clearable="true" />
 </div>
 
-<MudPaper Class="admin-surface" Elevation="0">
+<AdminDataPanel Loading="@(faqs is null)" SkeletonContent="@FaqListSkeleton">
     @if (faqs is null)
     {
-        <MudProgressLinear Indeterminate="true" />
     }
     else if (!FilteredFaqs.Any())
     {
@@ -101,7 +101,7 @@
             검색 결과 @(FilteredFaqs.Count())개 · 총 @(faqs.Count)개 · 노출 중 @(faqs.Count(f => f.IsActive))개
         </MudText>
     }
-</MudPaper>
+</AdminDataPanel>
 
 @code {
     [CascadingParameter]
@@ -110,15 +110,21 @@
     private List<Faq>? faqs;
     private string searchQuery = "";
 
+    private RenderFragment FaqListSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 5);
+        builder.AddAttribute(2, "Columns", 4);
+        builder.CloseComponent();
+    };
+
     private IEnumerable<Faq> FilteredFaqs => faqs?
         .Where(f => string.IsNullOrEmpty(searchQuery) || 
                     f.Question.Contains(searchQuery, StringComparison.OrdinalIgnoreCase) || 
                     (f.Answer != null && f.Answer.Contains(searchQuery, StringComparison.OrdinalIgnoreCase)))
         .OrderBy(f => f.SortOrder) ?? Enumerable.Empty<Faq>();
 
-    protected override async Task OnAfterRenderAsync(bool firstRender)
+    protected override async Task OnInitializedAsync()
-    {
-        if (firstRender)
     {
         if (AuthStateTask != null)
         {
@@ -126,8 +132,6 @@
             if (authState.User.Identity?.IsAuthenticated == true)
             {
                 await LoadAsync();
-                    StateHasChanged();
-                }
             }
         }
     }

TaxBaik.Web.Client/Components/Admin/Pages/Inquiries/InquiryCreate.razor

@@ -0,0 +1,60 @@
+@page "/admin/inquiries/create"
+@rendermode InteractiveWebAssembly
+@attribute [Authorize]
+@using TaxBaik.Application.DTOs
+@using TaxBaik.WasmClient.Components.Admin.Forms
+@inject IInquiryBrowserClient InquiryClient
+@inject NavigationManager Navigation
+@inject ISnackbar Snackbar
+
+<PageTitle>문의 등록</PageTitle>
+
+<AdminCrudPageShell Title="새 문의 등록"
+                    Eyebrow="Customer Relations"
+                    Subtitle="고객 문의를 등록합니다. (전화, 오프라인 등)"
+                    Loading="@false"
+                    OnCancel="@GoBack">
+    <MudPaper Class="pa-4 mt-4" Elevation="1">
+        <InquiryForm ButtonText="등록" OnSubmit="HandleCreate" OnCancel="GoBack" />
+    </MudPaper>
+</AdminCrudPageShell>
+
+@code {
+    private void GoBack()
+    {
+        Navigation.NavigateTo("/taxbaik/admin/inquiries");
+    }
+
+    private async Task HandleCreate(InquiryForm.InquiryFormModel model)
+    {
+        try
+        {
+            var result = await InquiryClient.CreateAsync(new SubmitInquiryDto
+            {
+                Name = model.Name,
+                Phone = model.Phone,
+                Email = model.Email,
+                ServiceType = model.ServiceType,
+                Message = model.Message,
+                SuppressNotification = true
+            });
+
+            if (result == null)
+            {
+                Snackbar.Add("문의가 등록되지 않았습니다.", Severity.Error);
+                return;
+            }
+
+            Snackbar.Add("문의가 등록되었습니다.", Severity.Success);
+            Navigation.NavigateTo("/taxbaik/admin/inquiries");
+        }
+        catch (ValidationException ex)
+        {
+            Snackbar.Add(ex.Message, Severity.Error);
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"등록 실패: {ex.Message}", Severity.Error);
+        }
+    }
+}

TaxBaik.Web.Client/Components/Admin/Pages/Inquiries/InquiryDetail.razor

@@ -1,4 +1,5 @@
 @page "/admin/inquiries/{InquiryId:int}"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Web.Services
 @inject IInquiryBrowserClient InquiryClient
@@ -26,8 +27,7 @@
 
     <MudGrid Class="mt-4">
         <MudItem xs="12" md="8">
-            <MudPaper Class="pa-4" Elevation="1">
+            <AdminDetailSection Title="문의 정보">
-                <MudText Typo="Typo.h6" Class="mb-3">문의 정보</MudText>
                 <MudGrid>
                     <MudItem xs="12" sm="6">
                         <MudText Typo="Typo.subtitle2" Color="Color.Secondary">이름</MudText>
@@ -56,20 +56,18 @@
                         <MudText>@inquiry.CreatedAt.ToLocalTime().ToString("yyyy-MM-dd HH:mm")</MudText>
                     </MudItem>
                 </MudGrid>
-            </MudPaper>
+            </AdminDetailSection>
 
-            <MudPaper Class="pa-4 mt-4" Elevation="1">
+            <AdminDetailSection Title="담당자 메모" CssClass="pa-4 mt-4">
-                <MudText Typo="Typo.h6" Class="mb-3">담당자 메모</MudText>
                 <MudTextField T="string" @bind-Value="adminMemo" Label="내부 메모 (고객에게 미노출)"
                               Lines="4" Variant="Variant.Outlined" />
                 <MudButton Class="mt-2" Variant="Variant.Filled" Color="Color.Primary"
                            OnClick="SaveMemo">메모 저장</MudButton>
-            </MudPaper>
+            </AdminDetailSection>
         </MudItem>
 
         <MudItem xs="12" md="4">
-            <MudPaper Class="pa-4" Elevation="1">
+            <AdminDetailSection Title="처리 상태">
-                <MudText Typo="Typo.h6" Class="mb-3">처리 상태</MudText>
                 <MudStack Spacing="2">
                     @foreach (var (key, label) in InquiryStatusMapper.Labels)
                     {
@@ -81,28 +79,26 @@
                         </MudButton>
                     }
                 </MudStack>
-            </MudPaper>
+            </AdminDetailSection>
 
             @if (inquiry.ClientId == null)
             {
-                <MudPaper Class="pa-4 mt-4" Elevation="1">
+                <AdminDetailSection Title="고객 카드 생성" CssClass="pa-4 mt-4">
-                    <MudText Typo="Typo.h6" Class="mb-3">고객 카드 생성</MudText>
                     <MudText Typo="Typo.body2" Class="mb-3">이 문의를 고객 카드로 등록합니다.</MudText>
                     <MudButton Variant="Variant.Filled" Color="Color.Success" FullWidth="true"
                                OnClick="ConvertToClient">
                         고객으로 등록
                     </MudButton>
-                </MudPaper>
+                </AdminDetailSection>
             }
             else
             {
-                <MudPaper Class="pa-4 mt-4" Elevation="1">
+                <AdminDetailSection Title="연결된 고객" CssClass="pa-4 mt-4">
-                    <MudText Typo="Typo.h6" Class="mb-3">연결된 고객</MudText>
                     <MudButton Variant="Variant.Outlined" Color="Color.Primary" FullWidth="true"
                                Href="@($"/taxbaik/admin/clients/{inquiry.ClientId}")">
                         고객 카드 보기
                     </MudButton>
-                </MudPaper>
+                </AdminDetailSection>
             }
         </MudItem>
     </MudGrid>

TaxBaik.Web.Client/Components/Admin/Pages/Inquiries/InquiryEdit.razor

@@ -1,29 +1,22 @@
 @page "/admin/inquiries/{id:int}/edit"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Application.DTOs
-@using TaxBaik.Application.Services
+@using TaxBaik.WasmClient.Components.Admin.Forms
-@using TaxBaik.Web.Components.Admin.Forms
+@inject IInquiryBrowserClient InquiryClient
-@inject InquiryService InquiryService
 @inject NavigationManager Navigation
 @inject ISnackbar Snackbar
 @inject IDialogService DialogService
 
 <PageTitle>문의 수정</PageTitle>
 
-<section class="admin-page-hero">
+<AdminCrudPageShell Title="문의 수정"
-    <div>
+                    Eyebrow="Customer Relations"
-        <MudText Typo="Typo.caption" Class="admin-eyebrow">Customer Relations</MudText>
+                    Subtitle="고객 문의 정보를 수정합니다."
-        <MudText Typo="Typo.h4" Class="admin-page-title">문의 수정</MudText>
+                    Loading="@isLoading"
-        <MudText Typo="Typo.body2" Class="admin-page-subtitle">고객 문의 정보를 수정합니다.</MudText>
+                    SkeletonContent="@EditorSkeleton"
-    </div>
+                    OnCancel="@GoBack">
-    <MudButton Variant="Variant.Outlined" StartIcon="@Icons.Material.Filled.Close" @onclick="GoBack">취소</MudButton>
+    @if (inquiry == null)
-</section>
-
-@if (isLoading)
-{
-    <MudProgressLinear Color="Color.Primary" Indeterminate="true" Class="mt-4" />
-}
-else if (inquiry == null)
 {
     <MudAlert Severity="Severity.Error" Class="mt-4">문의를 찾을 수 없습니다.</MudAlert>
 }
@@ -39,6 +32,7 @@ else
         </MudButton>
     </MudPaper>
 }
+</AdminCrudPageShell>
 
 @code {
     [Parameter]
@@ -48,11 +42,19 @@ else
     private InquiryForm.InquiryFormModel? formModel;
     private bool isLoading = true;
 
+    private RenderFragment EditorSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 5);
+        builder.AddAttribute(2, "Columns", 3);
+        builder.CloseComponent();
+    };
+
     protected override async Task OnInitializedAsync()
     {
         try
         {
-            inquiry = await InquiryService.GetByIdAsync(Id);
+            inquiry = await InquiryClient.GetByIdAsync(Id);
             if (inquiry != null)
             {
                 formModel = new InquiryForm.InquiryFormModel
@@ -89,19 +91,34 @@ else
 
         try
         {
-            inquiry.Name = model.Name;
+            var updated = await InquiryClient.UpdateAsync(inquiry.Id, new UpdateInquiryDto
-            inquiry.Phone = model.Phone;
-            inquiry.Email = model.Email;
-            inquiry.ServiceType = model.ServiceType;
-            inquiry.Message = model.Message;
-            inquiry.AdminMemo = model.AdminMemo;
-
-            if (inquiry.Status != model.Status)
             {
-                await InquiryService.UpdateStatusAsync(inquiry.Id, model.Status);
+                Name = model.Name,
+                Phone = model.Phone,
+                Email = model.Email,
+                ServiceType = model.ServiceType,
+                Message = model.Message,
+                Status = model.Status,
+                AdminMemo = model.AdminMemo
+            });
+
+            if (updated == null)
+            {
+                Snackbar.Add("문의 수정에 실패했습니다.", Severity.Error);
+                return;
             }
 
-            await InquiryService.UpdateAdminMemoAsync(inquiry.Id, model.AdminMemo);
+            inquiry = updated;
+            formModel = new InquiryForm.InquiryFormModel
+            {
+                Name = inquiry.Name,
+                Phone = inquiry.Phone,
+                Email = inquiry.Email,
+                ServiceType = inquiry.ServiceType,
+                Message = inquiry.Message,
+                Status = inquiry.Status,
+                AdminMemo = inquiry.AdminMemo
+            };
 
             Snackbar.Add("문의가 수정되었습니다.", Severity.Success);
             Navigation.NavigateTo("/taxbaik/admin/inquiries");
@@ -131,7 +148,12 @@ else
 
         try
         {
-            await InquiryService.DeleteAsync(inquiry.Id);
+            var deleted = await InquiryClient.DeleteAsync(inquiry.Id);
+            if (!deleted)
+            {
+                Snackbar.Add("문의 삭제에 실패했습니다.", Severity.Error);
+                return;
+            }
             Snackbar.Add("문의가 삭제되었습니다.", Severity.Success);
             Navigation.NavigateTo("/taxbaik/admin/inquiries");
         }

TaxBaik.Web.Client/Components/Admin/Pages/Inquiries/InquiryList.razor

@@ -1,4 +1,5 @@
 @page "/admin/inquiries"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Web.Services
 @inject IInquiryBrowserClient InquiryClient
@@ -12,13 +13,7 @@
     </ChildContent>
 </AdminPageHeader>
 
-<MudPaper Class="admin-surface" Elevation="0">
+<AdminDataPanel Loading="@isLoading">
-@if (isLoading)
-{
-    <MudProgressCircular Indeterminate="true" Class="ma-4" />
-}
-else
-{
     <MudTabs Rounded="true" Elevation="0" Class="admin-tabs">
         <MudTabPanel Text="전체">
             <InquiryTable Inquiries="allInquiries" Status="" />
@@ -39,8 +34,7 @@ else
             <InquiryTable Inquiries="allInquiries" Status="closed" />
         </MudTabPanel>
     </MudTabs>
-}
+</AdminDataPanel>
-</MudPaper>
 
 @code {
     [CascadingParameter]

TaxBaik.Web.Client/Components/Admin/Pages/Login.razor

@@ -0,0 +1,6 @@
+@page "/admin/login"
+@layout TaxBaik.WasmClient.Components.Admin.Layout.BlankLayout
+@attribute [AllowAnonymous]
+@rendermode InteractiveWebAssembly
+<PageTitle>로그인</PageTitle>
+<AdminLoginForm />

TaxBaik.Web.Client/Components/Admin/Pages/Logout.razor

@@ -1,4 +1,5 @@
 @page "/admin/logout"
+@rendermode InteractiveWebAssembly
 @using TaxBaik.Web.Services
 @inject CustomAuthenticationStateProvider AuthStateProvider
 @inject NavigationManager NavigationManager

TaxBaik.Web.Client/Components/Admin/Pages/RevenueTrackings.razor

@@ -1,5 +1,7 @@
 @page "/admin/revenue-trackings"
+@rendermode InteractiveWebAssembly
 @using TaxBaik.Web.Services.AdminClients
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject IRevenueTrackingBrowserClient RevenueClient
 @inject IClientBrowserClient ClientClient
 @inject ISnackbar Snackbar
@@ -19,10 +21,9 @@
     </MudButton>
 </section>
 
-<MudPaper Class="admin-surface" Elevation="0">
+<AdminDataPanel Loading="@(revenues is null)" SkeletonContent="@RevenueSkeleton">
     @if (revenues is null)
     {
-        <MudProgressLinear Indeterminate="true" />
     }
     else if (revenues.Count == 0)
     {
@@ -84,7 +85,7 @@
             </Columns>
         </MudDataGrid>
     }
-</MudPaper>
+</AdminDataPanel>
 
 <!-- Create Dialog -->
 <MudDialog @bind-IsVisible="isDialogOpen" Options="new DialogOptions { MaxWidth = MaxWidth.Small, FullWidth = true }">
@@ -102,13 +103,7 @@
             <MudTextField T="string" @bind-Value="revenueForm.InvoiceNumber" Label="청구번호" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" Required="true" />
             <MudDatePicker @bind-Date="revenueForm.InvoiceDate" Label="청구일" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" Required="true" />
             <MudNumericField T="decimal" @bind-Value="revenueForm.Amount" Label="청구액" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" Required="true" />
-            <MudSelect T="string" @bind-Value="revenueForm.ServiceType" Label="서비스 유형" Variant="Variant.Outlined" FullWidth="true" Class="mb-4">
+            <CommonCodeSelect @bind-Value="revenueForm.ServiceType" Group="REVENUE_SERVICE_TYPE" Label="서비스 유형" Class="mb-4" />
-                <MudSelectItem Value="@("기장 수수료")">기장 수수료</MudSelectItem>
-                <MudSelectItem Value="@("세무조정료")">세무조정료</MudSelectItem>
-                <MudSelectItem Value="@("세무상담료")">세무상담료</MudSelectItem>
-                <MudSelectItem Value="@("신고 대행료")">신고 대행료</MudSelectItem>
-                <MudSelectItem Value="@("자문 수수료")">자문 수수료</MudSelectItem>
-            </MudSelect>
             <MudDatePicker @bind-Date="revenueForm.DueDate" Label="납부예정일" Variant="Variant.Outlined" FullWidth="true" Class="mb-4" />
         </MudForm>
     </DialogContent>
@@ -129,9 +124,15 @@
     private bool isDialogOpen;
     private RevenueForm revenueForm = new();
 
-    protected override async Task OnAfterRenderAsync(bool firstRender)
+    private RenderFragment RevenueSkeleton => builder =>
     {
-        if (firstRender)
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 5);
+        builder.AddAttribute(2, "Columns", 5);
+        builder.CloseComponent();
+    };
+
+    protected override async Task OnInitializedAsync()
     {
         if (AuthStateTask != null)
         {
@@ -139,8 +140,6 @@
             if (authState.User.Identity?.IsAuthenticated == true)
             {
                 await LoadData();
-                    StateHasChanged();
-                }
             }
         }
     }

TaxBaik.Web.Client/Components/Admin/Pages/SeasonSimulator.razor

@@ -1,4 +1,5 @@
 @page "/admin/season-simulator"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Application.Seasonal
 @using TaxBaik.Application.Services

TaxBaik.Web.Client/Components/Admin/Pages/Settings/SiteSettings.razor

@@ -1,4 +1,5 @@
 @page "/admin/settings"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using System.ComponentModel.DataAnnotations
 @using System.Collections.Generic

TaxBaik.Web.Client/Components/Admin/Pages/TaxFilingSchedules.razor

@@ -1,7 +1,8 @@
 @page "/admin/tax-filing-schedules"
+@rendermode InteractiveWebAssembly
 @using TaxBaik.Web.Services.AdminClients
 @using TaxBaik.Domain.Entities
-@using TaxBaik.Web.Components.Admin.Shared
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject ITaxFilingScheduleBrowserClient TaxFilingClient
 @inject IClientBrowserClient ClientClient
 @inject ISnackbar Snackbar
@@ -21,9 +22,9 @@
     </MudButton>
 </section>
 
+<AdminDataPanel Loading="@(schedules is null)" SkeletonContent="@ScheduleSkeleton">
 @if (schedules is null)
 {
-    <MudProgressLinear Indeterminate="true" />
 }
 else
 {
@@ -165,6 +166,7 @@ else
         </MudItem>
     </MudGrid>
 }
+</AdminDataPanel>
 
 @code {
     [CascadingParameter]
@@ -178,9 +180,15 @@ else
     private TaxFilingSchedule? selectedSchedule;
     private TaxFilingScheduleForm scheduleForm = new();
 
-    protected override async Task OnAfterRenderAsync(bool firstRender)
+    private RenderFragment ScheduleSkeleton => builder =>
     {
-        if (firstRender)
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 6);
+        builder.AddAttribute(2, "Columns", 4);
+        builder.CloseComponent();
+    };
+ 
+    protected override async Task OnInitializedAsync()
     {
         if (AuthStateTask != null)
         {
@@ -189,8 +197,6 @@ else
             {
                 await LoadData();
                 PrepareCreate();
-                    StateHasChanged();
-                }
             }
         }
     }

TaxBaik.Web.Client/Components/Admin/Pages/TaxFilings/FilingTable.razor

@@ -1,5 +1,6 @@
 @using TaxBaik.Web.Services
 @using TaxBaik.Domain.Entities
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject ITaxFilingBrowserClient FilingClient
 @inject ISnackbar Snackbar
 
@@ -21,10 +22,10 @@ else
         <RowTemplate>
             <MudTd>@context.ClientName</MudTd>
             <MudTd>@context.FilingType</MudTd>
-            <MudTd>@context.DueDate.ToString("yyyy-MM-dd")</MudTd>
+            <MudTd>@BusinessDayCalculator.GetEffectiveDueDate(DateOnly.FromDateTime(context.DueDate)).ToDateTime(TimeOnly.MinValue).ToString("yyyy-MM-dd")</MudTd>
             <MudTd>
                 @{
-                    var dday = (context.DueDate.Date - DateTime.Today).Days;
+                    var dday = BusinessDayCalculator.GetDday(DateOnly.FromDateTime(context.DueDate));
                 }
                 @if (dday < 0)
                 {

TaxBaik.Web.Client/Components/Admin/Pages/TaxFilings/TaxFilingList.razor

@@ -1,7 +1,9 @@
 @page "/admin/tax-filings"
+@rendermode InteractiveWebAssembly
 @attribute [Authorize]
 @using TaxBaik.Web.Services
 @using TaxBaik.Domain.Entities
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject ITaxFilingBrowserClient FilingClient
 @inject IClientBrowserClient ClientClient
 @inject ISnackbar Snackbar
@@ -34,12 +36,7 @@
                                  Variant="Variant.Outlined" />
             </MudItem>
             <MudItem xs="12" sm="6" md="4">
-                <MudSelect T="string" @bind-Value="newFilingType" Label="신고 유형 *" Variant="Variant.Outlined">
+            <CommonCodeSelect @bind-Value="newFilingType" Group="FILING_TYPE" Label="신고 유형 *" />
-                    @foreach (var t in TaxFilingService.FilingTypes)
-                    {
-                        <MudSelectItem Value="@t">@t</MudSelectItem>
-                    }
-                </MudSelect>
             </MudItem>
             <MudItem xs="12" sm="6" md="4">
                 <MudDatePicker @bind-Date="newDueDate" Label="신고 기한 *" DateFormat="yyyy-MM-dd" />
@@ -82,6 +79,10 @@
 
     protected override async Task OnInitializedAsync() => await Reload();
 
+    protected override async Task OnParametersSetAsync()
+    {
+    }
+
     private async Task Reload()
     {
         try

TaxBaik.Web.Client/Components/Admin/Pages/TaxProfiles.razor

@@ -1,6 +1,7 @@
 @page "/admin/tax-profiles"
+@rendermode InteractiveWebAssembly
 @using TaxBaik.Web.Services.AdminClients
-@using TaxBaik.Web.Components.Admin.Shared
+@using TaxBaik.WasmClient.Components.Admin.Shared
 @inject ITaxProfileBrowserClient TaxProfileClient
 @inject IClientBrowserClient ClientClient
 @inject ISnackbar Snackbar
@@ -20,9 +21,9 @@
     </MudButton>
 </section>
 
+<AdminDataPanel Loading="@(profiles == null)" SkeletonContent="@ProfileSkeleton">
 @if (profiles == null)
 {
-    <MudProgressCircular Indeterminate="true" Class="mt-4" />
 }
 else
 {
@@ -117,6 +118,7 @@ else
         </MudItem>
     </MudGrid>
 }
+</AdminDataPanel>
 
 @code {
     [CascadingParameter]
@@ -131,6 +133,14 @@ else
     private TaxProfile? selectedProfile;
     private TaxProfileForm profileForm = new();
 
+    private RenderFragment ProfileSkeleton => builder =>
+    {
+        builder.OpenComponent<AdminSkeletonRows>(0);
+        builder.AddAttribute(1, "Rows", 6);
+        builder.AddAttribute(2, "Columns", 4);
+        builder.CloseComponent();
+    };
+
     protected override async Task OnInitializedAsync()
     {
         if (AuthStateTask != null)

TaxBaik.Web.Client/Components/Admin/Routes.razor

@@ -1,8 +1,9 @@
+@namespace TaxBaik.WasmClient.Components.Admin
 @using Microsoft.AspNetCore.Components.Routing
 
-<Router AppAssembly="@typeof(Program).Assembly">
+<Router AppAssembly="@typeof(TaxBaik.WasmClient._Imports).Assembly" @rendermode="new InteractiveWebAssemblyRenderMode(prerender: false)">
     <Found Context="routeData">
-        <AuthorizeRouteView RouteData="@routeData" DefaultLayout="@typeof(TaxBaik.Web.Components.Admin.Layout.MainLayout)">
+        <AuthorizeRouteView RouteData="@routeData" DefaultLayout="@typeof(TaxBaik.WasmClient.Components.Admin.Layout.MainLayout)">
             <NotAuthorized>
                 <RedirectToLogin />
             </NotAuthorized>
@@ -11,7 +12,7 @@
     </Found>
     <NotFound>
         <PageTitle>찾을 수 없음</PageTitle>
-        <LayoutView Layout="@typeof(TaxBaik.Web.Components.Admin.Layout.MainLayout)">
+        <LayoutView Layout="@typeof(TaxBaik.WasmClient.Components.Admin.Layout.MainLayout)">
             <p>요청한 페이지를 찾을 수 없습니다.</p>
         </LayoutView>
     </NotFound>

TaxBaik.Web.Client/Components/Admin/Shared/AdminCrudPageShell.razor

@@ -0,0 +1,43 @@
+<section class="admin-page-hero">
+    <div>
+        <MudText Typo="Typo.caption" Class="admin-eyebrow">@Eyebrow</MudText>
+        <MudText Typo="Typo.h4" Class="admin-page-title">@Title</MudText>
+        @if (!string.IsNullOrWhiteSpace(Subtitle))
+        {
+            <MudText Typo="Typo.body2" Class="admin-page-subtitle">@Subtitle</MudText>
+        }
+    </div>
+    <MudButton Variant="Variant.Outlined" StartIcon="@Icons.Material.Filled.Close" @onclick="OnCancel">
+        @CancelText
+    </MudButton>
+</section>
+
+<AdminEditorPanel Loading="@Loading" SkeletonContent="@SkeletonContent">
+    @ChildContent
+</AdminEditorPanel>
+
+@code {
+    [Parameter, EditorRequired]
+    public string Title { get; set; } = "";
+
+    [Parameter, EditorRequired]
+    public string Eyebrow { get; set; } = "";
+
+    [Parameter]
+    public string? Subtitle { get; set; }
+
+    [Parameter, EditorRequired]
+    public EventCallback OnCancel { get; set; }
+
+    [Parameter]
+    public string CancelText { get; set; } = "취소";
+
+    [Parameter]
+    public bool Loading { get; set; }
+
+    [Parameter]
+    public RenderFragment? SkeletonContent { get; set; }
+
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminDataPanel.razor

@@ -0,0 +1,28 @@
+<MudPaper Class="admin-surface" Elevation="0">
+    @if (Loading)
+    {
+        @if (SkeletonContent is not null)
+        {
+            @SkeletonContent
+        }
+        else
+        {
+            <AdminSkeletonRows />
+        }
+    }
+    else if (ChildContent is not null)
+    {
+        @ChildContent
+    }
+</MudPaper>
+
+@code {
+    [Parameter]
+    public bool Loading { get; set; }
+
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+
+    [Parameter]
+    public RenderFragment? SkeletonContent { get; set; }
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminDetailSection.razor

@@ -0,0 +1,21 @@
+<MudPaper Class="@CssClass" Elevation="@Elevation">
+    @if (!string.IsNullOrWhiteSpace(Title))
+    {
+        <MudText Typo="Typo.h6" Class="mb-3">@Title</MudText>
+    }
+    @ChildContent
+</MudPaper>
+
+@code {
+    [Parameter]
+    public string? Title { get; set; }
+
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+
+    [Parameter]
+    public string CssClass { get; set; } = "pa-4";
+
+    [Parameter]
+    public int Elevation { get; set; } = 1;
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminEditorPanel.razor

@@ -0,0 +1,16 @@
+<AdminDataPanel Loading="@Loading" SkeletonContent="@SkeletonContent">
+    <div class="admin-editor-panel-shell">
+        @ChildContent
+    </div>
+</AdminDataPanel>
+
+@code {
+    [Parameter]
+    public bool Loading { get; set; }
+
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+
+    [Parameter]
+    public RenderFragment? SkeletonContent { get; set; }
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminEmptyState.razor

@@ -0,0 +1,12 @@
+<div class="pa-6 text-center">
+    <MudIcon Icon="@Icon" Style="font-size:3rem; opacity:.3;" />
+    <MudText Class="mt-2 text-muted">@Message</MudText>
+</div>
+
+@code {
+    [Parameter, EditorRequired]
+    public string Icon { get; set; } = Icons.Material.Filled.Info;
+
+    [Parameter, EditorRequired]
+    public string Message { get; set; } = "";
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminFormActions.razor

@@ -0,0 +1,44 @@
+<div class="d-flex gap-2">
+    <MudButton Variant="@SubmitVariant"
+               Color="@SubmitColor"
+               StartIcon="@SubmitIcon"
+               @onclick="OnSubmit"
+               Disabled="@IsSubmitting">
+        @(IsSubmitting ? LoadingText : SubmitText)
+    </MudButton>
+    @if (OnCancel.HasDelegate)
+    {
+        <MudButton Variant="Variant.Outlined" @onclick="OnCancel">
+            @CancelText
+        </MudButton>
+    }
+</div>
+
+@code {
+    [Parameter, EditorRequired]
+    public string SubmitText { get; set; } = "저장";
+
+    [Parameter]
+    public string LoadingText { get; set; } = "저장 중...";
+
+    [Parameter]
+    public string CancelText { get; set; } = "취소";
+
+    [Parameter]
+    public Variant SubmitVariant { get; set; } = Variant.Filled;
+
+    [Parameter]
+    public Color SubmitColor { get; set; } = Color.Primary;
+
+    [Parameter]
+    public string? SubmitIcon { get; set; }
+
+    [Parameter]
+    public EventCallback OnSubmit { get; set; }
+
+    [Parameter]
+    public EventCallback OnCancel { get; set; }
+
+    [Parameter]
+    public bool IsSubmitting { get; set; }
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminFormSection.razor

@@ -0,0 +1,25 @@
+<div class="@CssClass">
+    @if (!string.IsNullOrWhiteSpace(Title))
+    {
+        <MudText Typo="Typo.subtitle1" Class="font-weight-bold mb-1">@Title</MudText>
+    }
+    @if (!string.IsNullOrWhiteSpace(Description))
+    {
+        <MudText Typo="Typo.body2" Class="mb-2">@Description</MudText>
+    }
+    @ChildContent
+</div>
+
+@code {
+    [Parameter]
+    public string? Title { get; set; }
+
+    [Parameter]
+    public string? Description { get; set; }
+
+    [Parameter]
+    public string CssClass { get; set; } = "";
+
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminLoginForm.razor

@@ -1,13 +1,6 @@
-@page "/admin/login"
-@layout TaxBaik.Web.Components.Admin.Layout.BlankLayout
-@attribute [AllowAnonymous]
-@rendermode @(new InteractiveServerRenderMode(prerender: true))
-@inject IApiClient ApiClient
 @inject ILocalStorageService LocalStorageService
 @inject IJSRuntime Js
 
-<PageTitle>로그인</PageTitle>
-
 <MudContainer MaxWidth="MaxWidth.Small" Class="admin-login-page d-flex align-center justify-center" Style="min-height: 100vh;">
     <MudPaper Class="pa-8" Elevation="3" Style="width: 100%; max-width: 400px;">
         <MudText Typo="Typo.h4" Class="mb-6 text-center">관리자 로그인</MudText>
@@ -18,7 +11,7 @@
                    placeholder="사용자명"
                    autocomplete="username"
                    name="username"
-                   value="@model.Username" />
+                   value="@rememberedUsername" />
 
             <input type="password"
                    class="mud-input mud-input-outlined mud-input-root mud-input-root-adorned-start mb-4"
@@ -44,35 +37,34 @@
 </MudContainer>
 
 @code {
-    private readonly LoginModel model = new();
+    private string rememberedUsername = "";
     private const string RememberedUsernameKey = "admin-remembered-username";
 
     protected override async Task OnInitializedAsync()
     {
         try
         {
-            var remembered = await LocalStorageService.GetItemAsStringAsync(RememberedUsernameKey);
+            rememberedUsername = await LocalStorageService.GetItemAsStringAsync(RememberedUsernameKey) ?? "";
-            if (!string.IsNullOrEmpty(remembered))
-            {
-                model.Username = remembered;
-            }
         }
         catch
         {
-            // LocalStorage may be unavailable during prerender.
+            rememberedUsername = "";
         }
     }
 
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (firstRender)
-            await Js.InvokeVoidAsync("taxbaikAdminSession.syncRouteClass");
-    }
-
-    private class LoginModel
         {
-        public string Username { get; set; } = "";
+            try
-        public string Password { get; set; } = "";
+            {
-        public bool RememberMe { get; set; }
+                await Js.InvokeVoidAsync("taxbaikAdminSession.syncRouteClass");
+                await Js.InvokeVoidAsync("taxbaikAdminSession.bindLoginForm");
+            }
+            catch
+            {
+                // Login UI must remain visible even if JS binding fails.
+            }
+        }
     }
 }

TaxBaik.Web.Client/Components/Admin/Shared/AdminMetricCard.razor

@@ -0,0 +1,36 @@
+<div class="admin-metric-card @Accent cursor-pointer" @onclick="OnClick">
+    <div class="admin-metric-card-body">
+        <span class="admin-metric-card-label">@Label</span>
+        <div class="admin-metric-card-value-row">
+            <span class="admin-metric-card-value" style="color: @ValueColor;">@Value</span>
+            <span class="admin-metric-card-icon" style="color: @IconColor;">@Icon</span>
+        </div>
+        <span class="admin-metric-card-caption">@Caption</span>
+    </div>
+</div>
+
+@code {
+    [Parameter, EditorRequired]
+    public string Label { get; set; } = "";
+
+    [Parameter, EditorRequired]
+    public object? Value { get; set; }
+
+    [Parameter, EditorRequired]
+    public string Caption { get; set; } = "";
+
+    [Parameter, EditorRequired]
+    public string Accent { get; set; } = "";
+
+    [Parameter, EditorRequired]
+    public string Icon { get; set; } = "";
+
+    [Parameter]
+    public string ValueColor { get; set; } = "inherit";
+
+    [Parameter]
+    public string IconColor { get; set; } = "inherit";
+
+    [Parameter]
+    public EventCallback OnClick { get; set; }
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminPageHeader.razor

@@ -0,0 +1,31 @@
+<section class="admin-page-hero">
+    <div>
+        @if (!string.IsNullOrWhiteSpace(Eyebrow))
+        {
+            <MudText Typo="Typo.caption" Class="admin-eyebrow">@Eyebrow</MudText>
+        }
+        <MudText Typo="Typo.h4" Class="admin-page-title">@Title</MudText>
+        @if (!string.IsNullOrWhiteSpace(Subtitle))
+        {
+            <MudText Typo="Typo.body2" Class="admin-page-subtitle">@Subtitle</MudText>
+        }
+    </div>
+    @if (ChildContent is not null)
+    {
+        <div>@ChildContent</div>
+    }
+</section>
+
+@code {
+    [Parameter, EditorRequired]
+    public string Title { get; set; } = "";
+
+    [Parameter]
+    public string? Eyebrow { get; set; }
+
+    [Parameter]
+    public string? Subtitle { get; set; }
+
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminShell.razor

@@ -0,0 +1,141 @@
+@inject NavigationManager Navigation
+@inject IJSRuntime JS
+@implements IDisposable
+
+<MudPopoverProvider />
+<MudDialogProvider />
+<MudSnackbarProvider />
+
+<MudLayout Class="admin-shell">
+    <MudAppBar Elevation="0" Class="admin-topbar">
+        <MudIconButton Icon="@Icons.Material.Filled.Menu"
+                       Color="Color.Inherit"
+                       Edge="Edge.Start"
+                       Class="admin-menu-button"
+                       OnClick="@ToggleDrawer" />
+        <div class="admin-topbar-title">
+            <MudText Typo="Typo.body2" Class="font-weight-bold admin-brand-text">TaxBaik</MudText>
+            <MudText Typo="Typo.body2" Class="admin-brand-subtitle">세무회계 관리 대시보드</MudText>
+        </div>
+        <MudSpacer />
+
+        <div class="admin-topbar-actions">
+            <MudButton Class="admin-topbar-action"
+                       Variant="Variant.Text"
+                       Color="Color.Inherit"
+                       Size="Size.Small"
+                       StartIcon="@Icons.Material.Filled.OpenInNew"
+                       Href="/taxbaik"
+                       Target="_blank">
+                공개 사이트
+            </MudButton>
+
+            <MudDivider Vertical="true" FlexItem="true" Class="mx-2" />
+
+            <MudButton Class="admin-topbar-action"
+                       Variant="Variant.Text"
+                       Color="Color.Error"
+                       Size="Size.Small"
+                       StartIcon="@Icons.Material.Filled.Logout"
+                       Href="/taxbaik/admin/logout">
+                로그아웃
+            </MudButton>
+        </div>
+    </MudAppBar>
+
+    <MudDrawer @bind-open="@drawerOpen"
+               Elevation="0"
+               Variant="DrawerVariant.Responsive"
+               Breakpoint="Breakpoint.Md"
+               Class="admin-drawer">
+        <div class="admin-drawer-brand">
+            <div class="admin-brand-mark">T</div>
+            <div>
+                <MudText Typo="Typo.subtitle1">TaxBaik</MudText>
+                <MudText Typo="Typo.caption">세무 운영 콘솔</MudText>
+            </div>
+        </div>
+        <MudNavMenu Class="admin-nav">
+            <MudNavLink Href="/taxbaik/admin/dashboard" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.Dashboard" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/dashboard"))">대시보드</MudNavLink>
+            <MudNavGroup Title="CRM & 세무관리" Icon="@Icons.Material.Filled.BusinessCenter" @bind-Expanded="@expandedCRMGroup">
+                <MudNavLink Href="/taxbaik/admin/tax-profiles" Icon="@Icons.Material.Filled.Assignment" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/tax-profiles"))">세무 프로필</MudNavLink>
+                <MudNavLink Href="/taxbaik/admin/tax-filing-schedules" Icon="@Icons.Material.Filled.CalendarMonth" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/tax-filing-schedules"))">신고 일정</MudNavLink>
+                <MudNavLink Href="/taxbaik/admin/contracts" Icon="@Icons.Material.Filled.Description" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/contracts"))">계약 관리</MudNavLink>
+                <MudNavLink Href="/taxbaik/admin/consulting-activities" Icon="@Icons.Material.Filled.ChatBubble" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/consulting-activities"))">상담 활동</MudNavLink>
+                <MudNavLink Href="/taxbaik/admin/revenue-trackings" Icon="@Icons.Material.Filled.Receipt" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/revenue-trackings"))">수익 추적</MudNavLink>
+            </MudNavGroup>
+            <MudNavGroup Title="고객 관리" Icon="@Icons.Material.Filled.PeopleAlt" @bind-Expanded="@expandedCustomerGroup">
+                <MudNavLink Href="/taxbaik/admin/clients" Icon="@Icons.Material.Filled.ContactPage" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/clients"))">고객 카드</MudNavLink>
+                <MudNavLink Href="/taxbaik/admin/tax-filings" Icon="@Icons.Material.Filled.Assessment" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/tax-filings"))">세무신고</MudNavLink>
+            </MudNavGroup>
+            <MudNavGroup Title="홈페이지" Icon="@Icons.Material.Filled.Home" @bind-Expanded="@expandedWebsiteGroup">
+                <MudNavLink Href="/taxbaik/admin/announcements" Icon="@Icons.Material.Filled.Campaign" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/announcements"))">공지사항</MudNavLink>
+                <MudNavLink Href="/taxbaik/admin/faqs" Icon="@Icons.Material.Filled.QuestionAnswer" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/faqs"))">FAQ 관리</MudNavLink>
+                <MudNavLink Href="/taxbaik/admin/blog" Icon="@Icons.Material.Filled.Article" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/blog"))">블로그 관리</MudNavLink>
+                <MudNavLink Href="/taxbaik/admin/season-simulator" Icon="@Icons.Material.Filled.Preview" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/season-simulator"))">시즌 시뮬레이터</MudNavLink>
+            </MudNavGroup>
+            <MudNavLink Href="/taxbaik/admin/inquiries" Icon="@Icons.Material.Filled.Forum" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/inquiries"))">문의 관리</MudNavLink>
+            <MudNavLink Href="/taxbaik/admin/settings" Icon="@Icons.Material.Filled.Tune" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/settings"))">설정</MudNavLink>
+            <MudNavLink Href="/taxbaik/admin/common-codes" Icon="@Icons.Material.Filled.Category" ClickPreventDefault="true" OnClick="@(() => NavigateTo("/taxbaik/admin/common-codes"))">공통관리</MudNavLink>
+        </MudNavMenu>
+        <div class="admin-drawer-version">
+            <div class="admin-drawer-version-label">Version</div>
+            <div class="admin-drawer-version-value">vunknown</div>
+            <div class="admin-drawer-version-built">unknown</div>
+        </div>
+    </MudDrawer>
+
+    <MudMainContent Class="admin-main">
+        <MudContainer MaxWidth="MaxWidth.False" Class="admin-content">
+            @ChildContent
+        </MudContainer>
+    </MudMainContent>
+</MudLayout>
+
+@code {
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+
+    private bool drawerOpen = true;
+    private bool expandedCRMGroup = true;
+    private bool expandedCustomerGroup = false;
+    private bool expandedWebsiteGroup = false;
+
+    protected override void OnInitialized()
+    {
+        Navigation.LocationChanged += OnLocationChanged;
+    }
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender)
+        {
+            await JS.InvokeVoidAsync("taxbaikAdminSession.setContext", "admin/shell", "navigation", "layout", "shell", "shell", "", "main");
+            await JS.InvokeVoidAsync("taxbaikAdminSession.hideLoading");
+        }
+    }
+
+    private void OnLocationChanged(object? sender, LocationChangedEventArgs args)
+    {
+        var route = new Uri(args.Location).AbsolutePath;
+        _ = JS.InvokeVoidAsync("taxbaikAdminSession.setContext", route, "navigation", "route-change", "layout", "shell", "", route);
+        _ = InvokeAsync(() => JS.InvokeVoidAsync("taxbaikAdminSession.hideLoading"));
+    }
+
+    private void ToggleDrawer()
+    {
+        drawerOpen = !drawerOpen;
+        _ = JS.InvokeVoidAsync("taxbaikAdminSession.setContext", "admin/shell", "navigation", "drawer", drawerOpen ? "opened" : "closed", "shell", "", "drawer");
+        _ = JS.InvokeVoidAsync("taxbaikAdminSession.traceUiState", "admin-shell", drawerOpen ? "drawer opened" : "drawer closed");
+    }
+
+    private void NavigateTo(string url)
+    {
+        Navigation.NavigateTo(url);
+    }
+
+    public void Dispose()
+    {
+        Navigation.LocationChanged -= OnLocationChanged;
+    }
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminSkeletonRows.razor

@@ -0,0 +1,26 @@
+<div class="admin-skeleton-stack">
+    @for (var i = 0; i < Rows; i++)
+    {
+        <div class="admin-skeleton-row">
+            @for (var j = 0; j < Columns; j++)
+            {
+                <div class="admin-skeleton-block @GetWidthClass(j)" />
+            }
+        </div>
+    }
+</div>
+
+@code {
+    [Parameter]
+    public int Rows { get; set; } = 4;
+
+    [Parameter]
+    public int Columns { get; set; } = 3;
+
+    private static string GetWidthClass(int index) => index switch
+    {
+        0 => "w-40",
+        1 => "w-25",
+        _ => "w-20"
+    };
+}

TaxBaik.Web.Client/Components/Admin/Shared/AdminTelemetryContext.razor

@@ -0,0 +1,107 @@
+@using System.Text.RegularExpressions
+@inject IJSRuntime Js
+@inject NavigationManager Navigation
+
+@code {
+    [Parameter] public string Screen { get; set; } = "";
+    [Parameter] public string Feature { get; set; } = "";
+    [Parameter] public string Action { get; set; } = "";
+    [Parameter] public string Step { get; set; } = "";
+    [Parameter] public string Entity { get; set; } = "";
+    [Parameter] public string EntityId { get; set; } = "";
+    [Parameter] public string DataKey { get; set; } = "";
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender)
+        {
+            try
+            {
+                var route = GetRoute();
+                var context = ResolveContext(route);
+                await Js.InvokeVoidAsync("taxbaikAdminSession.setContext",
+                    string.IsNullOrWhiteSpace(Screen) ? context.Screen : Screen,
+                    string.IsNullOrWhiteSpace(Feature) ? context.Feature : Feature,
+                    string.IsNullOrWhiteSpace(Action) ? context.Action : Action,
+                    string.IsNullOrWhiteSpace(Step) ? context.Step : Step,
+                    string.IsNullOrWhiteSpace(Entity) ? context.Entity : Entity,
+                    string.IsNullOrWhiteSpace(EntityId) ? context.EntityId : EntityId,
+                    string.IsNullOrWhiteSpace(DataKey) ? context.DataKey : DataKey);
+            }
+            catch
+            {
+                // telemetry must never block rendering
+            }
+        }
+    }
+
+    private string GetRoute()
+    {
+        var path = Navigation.ToBaseRelativePath(Navigation.Uri);
+        return string.IsNullOrWhiteSpace(path) ? "/" : "/" + path.TrimStart('/');
+    }
+
+    private static (string Screen, string Feature, string Action, string Step, string Entity, string EntityId, string DataKey) ResolveContext(string route)
+    => route.ToLowerInvariant() switch
+        {
+            "/" => ("admin/index", "shell", "load", "index", "admin", "", "index"),
+            "/admin/login" => ("admin/login", "auth", "render", "login page", "auth", "", "login"),
+            "/admin/dashboard" => ("admin/dashboard", "dashboard", "load", "summary", "dashboard", "", "summary"),
+            "/admin/common-codes" => ("admin/common-codes", "common-code", "load", "group list", "common_code", "", "group"),
+            "/admin/blog" => ("admin/blog", "content", "load", "list", "blog", "", "list"),
+            "/admin/blog/create" => ("admin/blog/create", "content", "create", "form", "blog", "", "create"),
+            "/admin/blog/0/edit" => ("admin/blog/edit", "content", "edit", "form", "blog", "0", "edit"),
+            "/admin/inquiries" => ("admin/inquiries", "customer-request", "load", "list", "inquiry", "", "list"),
+            "/admin/inquiries/create" => ("admin/inquiries/create", "customer-request", "create", "form", "inquiry", "", "create"),
+            "/admin/settings" => ("admin/settings", "system", "load", "settings", "site_setting", "", "settings"),
+            "/admin/announcements" => ("admin/announcements", "content", "load", "list", "announcement", "", "list"),
+            "/admin/announcements/create" => ("admin/announcements/create", "content", "create", "form", "announcement", "", "create"),
+            "/admin/companies" => ("admin/companies", "company", "load", "list", "company", "", "list"),
+            "/admin/faqs" => ("admin/faqs", "faq", "load", "list", "faq", "", "list"),
+            "/admin/tax-profiles" => ("admin/tax-profiles", "tax-profile", "load", "list", "tax_profile", "", "list"),
+            "/admin/tax-filing-schedules" => ("admin/tax-filing-schedules", "schedule", "load", "list", "tax_filing_schedule", "", "list"),
+            "/admin/contracts" => ("admin/contracts", "crm", "load", "list", "contract", "", "list"),
+            "/admin/consulting-activities" => ("admin/consulting-activities", "crm", "load", "list", "consulting_activity", "", "list"),
+            "/admin/revenue-trackings" => ("admin/revenue-trackings", "crm", "load", "list", "revenue_tracking", "", "list"),
+            "/admin/clients" => ("admin/clients", "customer", "load", "list", "client", "", "list"),
+            "/admin/tax-filings" => ("admin/tax-filings", "tax-filing", "load", "list", "tax_filing", "", "list"),
+            "/admin/season-simulator" => ("admin/season-simulator", "schedule", "load", "simulator", "season", "", "simulator"),
+            _ => ResolveDynamicContext(route)
+        };
+
+    private static (string Screen, string Feature, string Action, string Step, string Entity, string EntityId, string DataKey) ResolveDynamicContext(string route)
+    {
+        var normalized = route.ToLowerInvariant().TrimEnd('/');
+
+        foreach (var pattern in new[]
+        {
+            ("/admin/blog/", "admin/blog/edit", "content", "edit", "form", "blog", "edit"),
+            ("/admin/announcements/", "admin/announcements/edit", "content", "edit", "form", "announcement", "edit"),
+            ("/admin/inquiries/", "admin/inquiries/edit", "customer-request", "edit", "form", "inquiry", "edit"),
+            ("/admin/clients/", "admin/clients/detail", "customer", "view", "detail", "client", "detail"),
+            ("/admin/companies/", "admin/companies/edit", "company", "edit", "form", "company", "edit"),
+            ("/admin/faqs/", "admin/faqs/edit", "faq", "edit", "form", "faq", "edit"),
+            ("/admin/tax-profiles/", "admin/tax-profiles/edit", "tax-profile", "edit", "form", "tax_profile", "edit"),
+            ("/admin/tax-filing-schedules/", "admin/tax-filing-schedules/edit", "schedule", "edit", "form", "tax_filing_schedule", "edit"),
+        })
+        {
+            if (!normalized.StartsWith(pattern.Item1, StringComparison.OrdinalIgnoreCase))
+                continue;
+
+            var remainder = normalized[pattern.Item1.Length..].Trim('/');
+            var id = ExtractLeadingId(remainder);
+            if (string.IsNullOrWhiteSpace(id))
+                id = remainder.Split('/', StringSplitOptions.RemoveEmptyEntries).FirstOrDefault() ?? "";
+
+            return (pattern.Item2, pattern.Item3, pattern.Item4, pattern.Item5, pattern.Item6, id, pattern.Item7);
+        }
+
+        return (route.Trim('/'), "admin", "load", "view", "admin", "", route.Trim('/'));
+    }
+
+    private static string ExtractLeadingId(string value)
+    {
+        var match = Regex.Match(value, @"^\d+");
+        return match.Success ? match.Value : "";
+    }
+}

TaxBaik.Web.Client/Components/Admin/Shared/CommonCodeGroupPanel.razor

@@ -0,0 +1,37 @@
+<AdminDataPanel Loading="@false">
+    <AdminFormSection Title="그룹 선택" Description="코드 그룹을 먼저 선택합니다." CssClass="mb-4">
+        <MudSelect T="string"
+                   Value="@SelectedGroup"
+                   ValueChanged="OnSelectedGroupChanged"
+                   Label="코드 그룹"
+                   Variant="Variant.Outlined"
+                   FullWidth="true"
+                   Clearable="true">
+            <MudSelectItem Value="@string.Empty">선택</MudSelectItem>
+            @foreach (var group in Groups)
+            {
+                <MudSelectItem Value="@group">@group</MudSelectItem>
+            }
+        </MudSelect>
+    </AdminFormSection>
+
+    <AdminFormSection Title="새 코드" Description="선택한 그룹에 항목을 추가합니다.">
+        <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="OnCreateRequested">새 코드 추가</MudButton>
+    </AdminFormSection>
+</AdminDataPanel>
+
+@code {
+    [Parameter, EditorRequired]
+    public IReadOnlyList<string> Groups { get; set; } = [];
+
+    [Parameter]
+    public string SelectedGroup { get; set; } = "";
+
+    [Parameter, EditorRequired]
+    public EventCallback<string> SelectedGroupChanged { get; set; }
+
+    [Parameter, EditorRequired]
+    public EventCallback OnCreateRequested { get; set; }
+
+    private Task OnSelectedGroupChanged(string value) => SelectedGroupChanged.InvokeAsync(value);
+}

TaxBaik.Web.Client/Components/Admin/Shared/CommonCodeListPanel.razor

@@ -0,0 +1,72 @@
+<AdminDataPanel Loading="@Loading">
+    <AdminFormSection Title="코드 목록" Description="그룹별 공통코드와 상태를 관리합니다." CssClass="mb-4">
+        <MudTable Items="@Codes" Dense="true" Hover="true">
+            <HeaderContent>
+                <MudTh>그룹</MudTh>
+                <MudTh>값</MudTh>
+                <MudTh>이름</MudTh>
+                <MudTh>순서</MudTh>
+                <MudTh>상태</MudTh>
+                <MudTh>작업</MudTh>
+            </HeaderContent>
+            <RowTemplate>
+                <MudTd>@context.CodeGroup</MudTd>
+                <MudTd>@context.CodeValue</MudTd>
+                <MudTd>@context.CodeName</MudTd>
+                <MudTd>@context.SortOrder</MudTd>
+                <MudTd>@(context.IsActive ? "활성" : "비활성")</MudTd>
+                <MudTd>
+                    <MudButton Size="Size.Small" Variant="Variant.Text" OnClick="@(async () => await InvokeEditAsync(context))">수정</MudButton>
+                    <MudButton Size="Size.Small" Variant="Variant.Text" Color="Color.Error" OnClick="@(async () => await InvokeDeleteAsync(context))">삭제</MudButton>
+                </MudTd>
+            </RowTemplate>
+        </MudTable>
+    </AdminFormSection>
+
+    <MudDivider Class="my-4" />
+
+    <AdminFormSection Title="코드 편집" Description="공백 없는 값과 일관된 이름만 허용합니다.">
+        <MudForm>
+            <MudTextField @bind-Value="EditModel.CodeGroup" Label="그룹" Variant="Variant.Outlined" FullWidth="true" Required="true" Disabled="@(!IsCreateMode)" MaxLength="80" Class="mb-3" />
+            <MudTextField @bind-Value="EditModel.CodeValue" Label="값" Variant="Variant.Outlined" FullWidth="true" Required="true" Disabled="@(!IsCreateMode)" MaxLength="120" Class="mb-3" />
+            <MudTextField @bind-Value="EditModel.CodeName" Label="이름" Variant="Variant.Outlined" FullWidth="true" Required="true" MaxLength="200" Class="mb-3" />
+            <MudNumericField T="int" @bind-Value="EditModel.SortOrder" Label="순서" Variant="Variant.Outlined" FullWidth="true" Class="mb-3" />
+            <MudSwitch @bind-Checked="EditModel.IsActive" Color="Color.Primary">활성</MudSwitch>
+            <div class="d-flex gap-2 mt-4">
+                <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="OnSaveRequested">저장</MudButton>
+                <MudButton Variant="Variant.Outlined" OnClick="OnResetRequested">초기화</MudButton>
+            </div>
+        </MudForm>
+    </AdminFormSection>
+</AdminDataPanel>
+
+@code {
+    [Parameter]
+    public bool Loading { get; set; }
+
+    [Parameter, EditorRequired]
+    public IReadOnlyList<CommonCode> Codes { get; set; } = [];
+
+    [Parameter, EditorRequired]
+    public CommonCode EditModel { get; set; } = new();
+
+    [Parameter]
+    public bool IsCreateMode { get; set; }
+
+    [Parameter, EditorRequired]
+    public EventCallback<CommonCode> EditRequested { get; set; }
+
+    [Parameter, EditorRequired]
+    public EventCallback<CommonCode> DeleteRequested { get; set; }
+
+    [Parameter, EditorRequired]
+    public EventCallback SaveRequested { get; set; }
+
+    [Parameter, EditorRequired]
+    public EventCallback ResetRequested { get; set; }
+
+    private Task InvokeEditAsync(CommonCode code) => EditRequested.InvokeAsync(code);
+    private Task InvokeDeleteAsync(CommonCode code) => DeleteRequested.InvokeAsync(code);
+    private Task OnSaveRequested() => SaveRequested.InvokeAsync();
+    private Task OnResetRequested() => ResetRequested.InvokeAsync();
+}

TaxBaik.Web.Client/Components/Admin/_Imports.razor

@@ -8,6 +8,11 @@
 @using Microsoft.AspNetCore.Authorization
 @using Microsoft.JSInterop
 @using MudBlazor
-@using TaxBaik.Web.Services
+@using TaxBaik.Application.DTOs
-@using TaxBaik.Domain.Entities
 @using TaxBaik.Application.Services
+@using TaxBaik.Application.Utils
+@using TaxBaik.Domain.Entities
+@using TaxBaik.Web.Services
+@using TaxBaik.Web.Services.AdminClients
+@using TaxBaik.WasmClient.Components.Admin.Shared
+@using TaxBaik.WasmClient.Components.Admin.Layout

TaxBaik.Web.Client/Program.cs

@@ -29,6 +29,8 @@ builder.Services.AddHttpClient<IApiClient, ApiClient>(client =>
 
 // 각 Browser API Client 등록
 builder.Services.AddHttpClient<IAdminDashboardClient, AdminDashboardClient>(client => client.BaseAddress = new Uri(apiBaseUrl)).AddHttpMessageHandler<TokenRefreshHandler>();
+builder.Services.AddHttpClient<IBlogBrowserClient, BlogBrowserClient>(client => client.BaseAddress = new Uri(apiBaseUrl)).AddHttpMessageHandler<TokenRefreshHandler>();
+builder.Services.AddHttpClient<ICategoryBrowserClient, CategoryBrowserClient>(client => client.BaseAddress = new Uri(apiBaseUrl));
 builder.Services.AddHttpClient<IInquiryBrowserClient, InquiryBrowserClient>(client => client.BaseAddress = new Uri(apiBaseUrl)).AddHttpMessageHandler<TokenRefreshHandler>();
 builder.Services.AddHttpClient<IClientBrowserClient, ClientBrowserClient>(client => client.BaseAddress = new Uri(apiBaseUrl)).AddHttpMessageHandler<TokenRefreshHandler>();
 builder.Services.AddHttpClient<ITaxFilingBrowserClient, TaxFilingBrowserClient>(client => client.BaseAddress = new Uri(apiBaseUrl)).AddHttpMessageHandler<TokenRefreshHandler>();

TaxBaik.Web.Client/Services/BlogBrowserClient.cs

@@ -0,0 +1,104 @@
+namespace TaxBaik.Web.Services;
+
+using System.Net.Http.Json;
+using TaxBaik.Application.DTOs;
+
+public interface IBlogBrowserClient
+{
+    Task<(IEnumerable<BlogPostResponseDto> Items, int Total)> GetAdminPagedAsync(int page = 1, int pageSize = 20, CancellationToken ct = default);
+    Task<(IEnumerable<BlogPostResponseDto> Items, int Total)> GetArchivedPagedAsync(int page = 1, int pageSize = 20, CancellationToken ct = default);
+    Task<BlogPostResponseDto?> GetByIdAsync(int id, CancellationToken ct = default);
+    Task<BlogPostResponseDto?> CreateAsync(CreateBlogPostDto dto, CancellationToken ct = default);
+    Task<BlogPostResponseDto?> UpdateAsync(int id, CreateBlogPostDto dto, CancellationToken ct = default);
+    Task<bool> DeleteAsync(int id, CancellationToken ct = default);
+    Task<bool> RestoreAsync(int id, CancellationToken ct = default);
+    Task<bool> TogglePublishAsync(int id, CreateBlogPostDto dto, CancellationToken ct = default);
+}
+
+public class BlogBrowserClient : IBlogBrowserClient
+{
+    private readonly HttpClient _http;
+    private readonly ILogger<BlogBrowserClient> _logger;
+    private readonly ITokenStore _tokenStore;
+
+    public BlogBrowserClient(HttpClient http, ILogger<BlogBrowserClient> logger, ITokenStore tokenStore)
+    {
+        _http = http;
+        _logger = logger;
+        _tokenStore = tokenStore;
+    }
+
+    private void EnsureAuthHeader()
+    {
+        if (!string.IsNullOrEmpty(_tokenStore.AccessToken))
+            _http.DefaultRequestHeaders.Authorization = new("Bearer", _tokenStore.AccessToken);
+        else
+            _http.DefaultRequestHeaders.Authorization = null;
+    }
+
+    public async Task<(IEnumerable<BlogPostResponseDto> Items, int Total)> GetAdminPagedAsync(int page = 1, int pageSize = 20, CancellationToken ct = default)
+    {
+        EnsureAuthHeader();
+        var result = await _http.GetFromJsonAsync<PagedResponse>($"blog/admin?page={page}&pageSize={pageSize}", ct);
+        return result != null ? (result.Data, result.Total) : ([], 0);
+    }
+
+    public async Task<(IEnumerable<BlogPostResponseDto> Items, int Total)> GetArchivedPagedAsync(int page = 1, int pageSize = 20, CancellationToken ct = default)
+    {
+        EnsureAuthHeader();
+        var result = await _http.GetFromJsonAsync<PagedResponse>($"blog/admin/archived?page={page}&pageSize={pageSize}", ct);
+        return result != null ? (result.Data, result.Total) : ([], 0);
+    }
+
+    public async Task<BlogPostResponseDto?> GetByIdAsync(int id, CancellationToken ct = default)
+    {
+        EnsureAuthHeader();
+        return await _http.GetFromJsonAsync<BlogPostResponseDto>($"blog/{id}", ct);
+    }
+
+    public async Task<BlogPostResponseDto?> CreateAsync(CreateBlogPostDto dto, CancellationToken ct = default)
+    {
+        EnsureAuthHeader();
+        var response = await _http.PostAsJsonAsync("blog", dto, ct);
+        if (!response.IsSuccessStatusCode)
+            return null;
+        var content = await response.Content.ReadAsStringAsync(ct);
+        return System.Text.Json.JsonSerializer.Deserialize<BlogPostResponseDto>(content, new System.Text.Json.JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+    }
+
+    public async Task<BlogPostResponseDto?> UpdateAsync(int id, CreateBlogPostDto dto, CancellationToken ct = default)
+    {
+        EnsureAuthHeader();
+        var response = await _http.PutAsJsonAsync($"blog/{id}", dto, ct);
+        if (!response.IsSuccessStatusCode)
+            return null;
+        var content = await response.Content.ReadAsStringAsync(ct);
+        return System.Text.Json.JsonSerializer.Deserialize<BlogPostResponseDto>(content, new System.Text.Json.JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+    }
+
+    public async Task<bool> DeleteAsync(int id, CancellationToken ct = default)
+    {
+        EnsureAuthHeader();
+        var response = await _http.DeleteAsync($"blog/{id}", ct);
+        return response.IsSuccessStatusCode;
+    }
+
+    public async Task<bool> RestoreAsync(int id, CancellationToken ct = default)
+    {
+        EnsureAuthHeader();
+        var response = await _http.PostAsync($"blog/{id}/restore", null, ct);
+        return response.IsSuccessStatusCode;
+    }
+
+    public async Task<bool> TogglePublishAsync(int id, CreateBlogPostDto dto, CancellationToken ct = default)
+    {
+        var result = await UpdateAsync(id, dto, ct);
+        return result != null;
+    }
+
+    private sealed class PagedResponse
+    {
+        public List<BlogPostResponseDto> Data { get; set; } = [];
+        public int Total { get; set; }
+    }
+}

TaxBaik.Web.Client/Services/CategoryBrowserClient.cs

@@ -0,0 +1,35 @@
+namespace TaxBaik.Web.Services;
+
+using System.Net.Http.Json;
+using TaxBaik.Domain.Entities;
+
+public interface ICategoryBrowserClient
+{
+    Task<IReadOnlyList<Category>> GetAllAsync(CancellationToken ct = default);
+}
+
+public class CategoryBrowserClient : ICategoryBrowserClient
+{
+    private readonly HttpClient _http;
+    private readonly ILogger<CategoryBrowserClient> _logger;
+
+    public CategoryBrowserClient(HttpClient http, ILogger<CategoryBrowserClient> logger)
+    {
+        _http = http;
+        _logger = logger;
+    }
+
+    public async Task<IReadOnlyList<Category>> GetAllAsync(CancellationToken ct = default)
+    {
+        try
+        {
+            var result = await _http.GetFromJsonAsync<List<Category>>("category", cancellationToken: ct);
+            return result ?? [];
+        }
+        catch (HttpRequestException ex)
+        {
+            _logger.LogError(ex, "Failed to fetch categories");
+            throw;
+        }
+    }
+}

TaxBaik.Web.Client/Services/CustomAuthenticationStateProvider.cs

@@ -38,7 +38,7 @@ public class CustomAuthenticationStateProvider : AuthenticationStateProvider
                 {
                     var refreshToken = await _localStorage.GetItemAsStringAsync("refreshToken");
                     var ticksStr = await _localStorage.GetItemAsStringAsync("tokenExpiry");
-                    if (long.TryParse(ticksStr, out var ticks))
+                    if (TryNormalizeExpiryTicks(ticksStr, out var ticks))
                     {
                         _tokenStore.AccessToken = storedToken;
                         _tokenStore.RefreshToken = refreshToken;
@@ -130,6 +130,30 @@ public class CustomAuthenticationStateProvider : AuthenticationStateProvider
         NotifyAuthenticationStateChanged(GetAuthenticationStateAsync());
     }
 
+    private static bool TryNormalizeExpiryTicks(string? rawValue, out long ticks)
+    {
+        ticks = 0;
+        if (!long.TryParse(rawValue, out var parsed))
+        {
+            return false;
+        }
+
+        // Support both legacy Unix-millisecond storage and .NET ticks.
+        if (parsed > 10_000_000_000_000L && parsed < 100_000_000_000_000_000L)
+        {
+            ticks = parsed;
+            return true;
+        }
+
+        if (parsed > 1_000_000_000_000L && parsed < 100_000_000_000_000L)
+        {
+            ticks = DateTimeOffset.FromUnixTimeMilliseconds(parsed).UtcDateTime.Ticks;
+            return true;
+        }
+
+        return false;
+    }
+
     private bool ShouldRefreshToken()
     {
         // 토큰이 5분 이내로 만료되면 갱신 (300초 = 5분)

TaxBaik.Web.Client/Services/InquiryBrowserClient.cs

@@ -2,6 +2,7 @@ namespace TaxBaik.Web.Services;
 
 using System.Net.Http;
 using System.Net.Http.Json;
+using TaxBaik.Application.DTOs;
 using TaxBaik.Domain.Entities;
 
 /// <summary>
@@ -15,7 +16,10 @@ public interface IInquiryBrowserClient
     Task<Inquiry?> GetByIdAsync(int id, CancellationToken ct = default);
     Task<bool> UpdateStatusAsync(int id, string status, CancellationToken ct = default);
     Task<bool> UpdateAdminMemoAsync(int id, string adminMemo, CancellationToken ct = default);
+    Task<Inquiry?> UpdateAsync(int id, UpdateInquiryDto dto, CancellationToken ct = default);
     Task<int> ConvertToClientAsync(int id, string name, string phone, string serviceType, CancellationToken ct = default);
+    Task<Inquiry?> CreateAsync(SubmitInquiryDto dto, CancellationToken ct = default);
+    Task<bool> DeleteAsync(int id, CancellationToken ct = default);
 }
 
 public class InquiryBrowserClient : IInquiryBrowserClient
@@ -116,6 +120,27 @@ public class InquiryBrowserClient : IInquiryBrowserClient
         }
     }
 
+    public async Task<Inquiry?> UpdateAsync(int id, UpdateInquiryDto dto, CancellationToken ct = default)
+    {
+        try
+        {
+            EnsureAuthHeader();
+            var response = await _http.PutAsJsonAsync($"inquiry/{id}", dto, cancellationToken: ct);
+            if (!response.IsSuccessStatusCode)
+                return null;
+
+            var content = await response.Content.ReadAsStringAsync(ct);
+            return System.Text.Json.JsonSerializer.Deserialize<Inquiry>(
+                content,
+                new System.Text.Json.JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+        }
+        catch (HttpRequestException ex)
+        {
+            _logger.LogError(ex, "Failed to update inquiry {InquiryId}", id);
+            throw;
+        }
+    }
+
     public async Task<int> ConvertToClientAsync(int id, string name, string phone, string serviceType, CancellationToken ct = default)
     {
         try
@@ -143,6 +168,42 @@ public class InquiryBrowserClient : IInquiryBrowserClient
         }
     }
 
+    public async Task<Inquiry?> CreateAsync(SubmitInquiryDto dto, CancellationToken ct = default)
+    {
+        try
+        {
+            EnsureAuthHeader();
+            var response = await _http.PostAsJsonAsync("inquiry", dto, cancellationToken: ct);
+            if (!response.IsSuccessStatusCode)
+                return null;
+
+            var content = await response.Content.ReadAsStringAsync(ct);
+            return System.Text.Json.JsonSerializer.Deserialize<Inquiry>(
+                content,
+                new System.Text.Json.JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+        }
+        catch (HttpRequestException ex)
+        {
+            _logger.LogError(ex, "Failed to create inquiry");
+            throw;
+        }
+    }
+
+    public async Task<bool> DeleteAsync(int id, CancellationToken ct = default)
+    {
+        try
+        {
+            EnsureAuthHeader();
+            var response = await _http.DeleteAsync($"inquiry/{id}", ct);
+            return response.IsSuccessStatusCode;
+        }
+        catch (HttpRequestException ex)
+        {
+            _logger.LogError(ex, "Failed to delete inquiry {InquiryId}", id);
+            throw;
+        }
+    }
+
     private class InquiryPagedResponse
     {
         public List<Inquiry> Data { get; set; } = [];

TaxBaik.Web.Client/wwwroot/index.html

@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="ko">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>TaxBaik - 관리자 대시보드</title>
+    <base href="/taxbaik/" />
+    <link rel="icon" type="image/svg+xml" href="/taxbaik/favicon.svg" />
+    <link rel="stylesheet" href="/taxbaik/css/admin.css" />
+    <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap" rel="stylesheet" />
+</head>
+<body class="blazor-dark">
+    <div id="app"></div>
+
+    <!-- .NET 10 WebAssembly: blazor.webassembly.js (not blazor.web.js) -->
+    <script src="/taxbaik/_framework/blazor.webassembly.js"></script>
+</body>
+</html>

TaxBaik.Web/Components/Admin/Forms/InquiryForm.razor

@@ -1,100 +0,0 @@
-@using TaxBaik.Application.DTOs
-@using TaxBaik.Application.Services
-
-<MudForm @ref="form">
-    <MudTextField @bind-Value="model.Name" Label="이름"
-        Variant="Variant.Outlined" Class="mb-4" Required="true" />
-
-    <MudTextField @bind-Value="model.Phone" Label="전화번호 (예: 010-1234-5678)"
-        Variant="Variant.Outlined" Class="mb-4" Required="true" />
-
-    <MudTextField @bind-Value="model.Email" Label="이메일"
-        Variant="Variant.Outlined" Class="mb-4" InputType="InputType.Email" />
-
-    <MudSelect @bind-Value="model.ServiceType" Label="문의 유형"
-        Variant="Variant.Outlined" Class="mb-4">
-        <MudSelectItem Value="@("사업자세무")">사업자세무</MudSelectItem>
-        <MudSelectItem Value="@("부동산세금")">부동산세금</MudSelectItem>
-        <MudSelectItem Value="@("가족자산")">가족자산</MudSelectItem>
-        <MudSelectItem Value="@("기타")">기타</MudSelectItem>
-    </MudSelect>
-
-    <MudTextField @bind-Value="model.Message" Label="문의 내용"
-        Variant="Variant.Outlined" Lines="5" Class="mb-4" Required="true" />
-
-    <MudSelect @bind-Value="model.Status" Label="상태"
-        Variant="Variant.Outlined" Class="mb-4">
-        <MudSelectItem Value="@("new")">신규</MudSelectItem>
-        <MudSelectItem Value="@("consulting")">상담중</MudSelectItem>
-        <MudSelectItem Value="@("contracted")">계약완료</MudSelectItem>
-        <MudSelectItem Value="@("rejected")">거절</MudSelectItem>
-        <MudSelectItem Value="@("closed")">종결</MudSelectItem>
-    </MudSelect>
-
-    <MudTextField @bind-Value="model.AdminMemo" Label="관리 메모"
-        Variant="Variant.Outlined" Lines="3" Class="mb-4" />
-
-    <div class="d-flex gap-2">
-        <MudButton Variant="Variant.Filled" Color="Color.Primary" @onclick="HandleSubmit">
-            @ButtonText
-        </MudButton>
-        <MudButton Variant="Variant.Outlined" @onclick="OnCancel">취소</MudButton>
-    </div>
-</MudForm>
-
-@code {
-    [Parameter, EditorRequired]
-    public string ButtonText { get; set; } = "저장";
-
-    [Parameter]
-    public EventCallback<InquiryFormModel> OnSubmit { get; set; }
-
-    [Parameter]
-    public EventCallback OnCancel { get; set; }
-
-    [Parameter]
-    public InquiryFormModel? InitialData { get; set; }
-
-    private MudForm? form;
-    private InquiryFormModel model = new();
-
-    protected override void OnInitialized()
-    {
-        if (InitialData != null)
-        {
-            model = new InquiryFormModel
-            {
-                Name = InitialData.Name,
-                Phone = InitialData.Phone,
-                Email = InitialData.Email,
-                ServiceType = InitialData.ServiceType,
-                Message = InitialData.Message,
-                Status = InitialData.Status,
-                AdminMemo = InitialData.AdminMemo
-            };
-        }
-    }
-
-    private async Task HandleSubmit()
-    {
-        if (form == null)
-            return;
-
-        await form.Validate();
-        if (!form.IsValid)
-            return;
-
-        await OnSubmit.InvokeAsync(model);
-    }
-
-    public class InquiryFormModel
-    {
-        public string Name { get; set; } = "";
-        public string Phone { get; set; } = "";
-        public string? Email { get; set; }
-        public string ServiceType { get; set; } = "기타";
-        public string Message { get; set; } = "";
-        public string Status { get; set; } = "new";
-        public string? AdminMemo { get; set; }
-    }
-}

TaxBaik.Web/Components/Admin/Layout/MainLayout.razor

@@ -1,143 +0,0 @@
-@inherits LayoutComponentBase
-@inject NavigationManager Navigation
-@inject IJSRuntime JS
-@inject VersionInfo VersionInfo
-@implements IDisposable
-@rendermode @(new InteractiveWebAssemblyRenderMode(prerender: true))
-
-<MudPopoverProvider />
-<MudDialogProvider />
-<MudSnackbarProvider />
-
-<MudLayout Class="admin-shell">
-    <MudAppBar Elevation="0" Class="admin-topbar">
-        <MudIconButton Icon="@Icons.Material.Filled.Menu"
-                       Color="Color.Inherit"
-                       Edge="Edge.Start"
-                       Class="admin-menu-button"
-                       OnClick="@ToggleDrawer" />
-        <div class="admin-topbar-title" style="display: flex; align-items: center; gap: 8px;">
-            <MudText Typo="Typo.body2" Class="font-weight-bold" Style="color: var(--primary-color);">[TaxBaik]</MudText>
-            <MudText Typo="Typo.body2" Style="font-weight: bold; color: #1E293B;">세무회계 관리 대시보드</MudText>
-        </div>
-        <MudSpacer />
-
-        <!-- 상단 액션 바 -->
-        <div class="admin-topbar-actions">
-            <MudTooltip Text="공개 웹사이트 방문">
-                <MudButton Class="admin-topbar-action"
-                           Variant="Variant.Text"
-                           Color="Color.Inherit"
-                           Size="Size.Small"
-                           StartIcon="@Icons.Material.Filled.OpenInNew"
-                           Href="/taxbaik"
-                           Target="_blank">
-                    공개 사이트
-                </MudButton>
-            </MudTooltip>
-
-            <MudDivider Vertical="true" FlexItem="true" Class="mx-2" />
-
-            <MudTooltip Text="로그아웃 (Ctrl+Q)">
-                <MudButton Class="admin-topbar-action"
-                           Variant="Variant.Text"
-                           Color="Color.Error"
-                           Size="Size.Small"
-                           StartIcon="@Icons.Material.Filled.Logout"
-                           Href="/taxbaik/admin/logout">
-                    로그아웃
-                </MudButton>
-            </MudTooltip>
-        </div>
-    </MudAppBar>
-
-    <MudDrawer @bind-open="@drawerOpen"
-               Elevation="0"
-               Variant="DrawerVariant.Responsive"
-               Breakpoint="Breakpoint.Md"
-               Class="admin-drawer">
-        <div class="admin-drawer-brand">
-            <div class="admin-brand-mark">T</div>
-            <div>
-                <MudText Typo="Typo.subtitle1">TaxBaik</MudText>
-                <MudText Typo="Typo.caption">세무 운영 콘솔</MudText>
-            </div>
-        </div>
-        <MudNavMenu Class="admin-nav">
-            <MudNavLink Href="/taxbaik/admin/dashboard" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.Dashboard">대시보드</MudNavLink>
-
-            <MudNavGroup Title="CRM & 세무관리" Icon="@Icons.Material.Filled.BusinessCenter" @bind-Expanded="@expandedCRMGroup">
-                <MudNavLink Href="/taxbaik/admin/tax-profiles" Icon="@Icons.Material.Filled.Assignment">세무 프로필</MudNavLink>
-                <MudNavLink Href="/taxbaik/admin/tax-filing-schedules" Icon="@Icons.Material.Filled.CalendarMonth">신고 일정</MudNavLink>
-                <MudNavLink Href="/taxbaik/admin/contracts" Icon="@Icons.Material.Filled.Description">계약 관리</MudNavLink>
-                <MudNavLink Href="/taxbaik/admin/consulting-activities" Icon="@Icons.Material.Filled.ChatBubble">상담 활동</MudNavLink>
-                <MudNavLink Href="/taxbaik/admin/revenue-trackings" Icon="@Icons.Material.Filled.Receipt">수익 추적</MudNavLink>
-            </MudNavGroup>
-
-            <MudNavGroup Title="고객 관리" Icon="@Icons.Material.Filled.PeopleAlt" @bind-Expanded="@expandedCustomerGroup">
-                <MudNavLink Href="/taxbaik/admin/clients" Icon="@Icons.Material.Filled.ContactPage">고객 카드</MudNavLink>
-                <MudNavLink Href="/taxbaik/admin/tax-filings" Icon="@Icons.Material.Filled.Assessment">세무신고</MudNavLink>
-            </MudNavGroup>
-
-            <MudNavGroup Title="홈페이지" Icon="@Icons.Material.Filled.Home" @bind-Expanded="@expandedWebsiteGroup">
-                <MudNavLink Href="/taxbaik/admin/announcements" Icon="@Icons.Material.Filled.Campaign">공지사항</MudNavLink>
-                <MudNavLink Href="/taxbaik/admin/faqs" Icon="@Icons.Material.Filled.QuestionAnswer">FAQ 관리</MudNavLink>
-                <MudNavLink Href="/taxbaik/admin/blog" Icon="@Icons.Material.Filled.Article">블로그 관리</MudNavLink>
-                <MudNavLink Href="/taxbaik/admin/season-simulator" Icon="@Icons.Material.Filled.Preview">시즌 시뮬레이터</MudNavLink>
-            </MudNavGroup>
-
-            <MudNavLink Href="/taxbaik/admin/inquiries" Icon="@Icons.Material.Filled.Forum">문의 관리</MudNavLink>
-            <MudNavLink Href="/taxbaik/admin/settings" Icon="@Icons.Material.Filled.Tune">설정</MudNavLink>
-            <MudNavLink Href="/taxbaik/admin/common-codes" Icon="@Icons.Material.Filled.Category">공통관리</MudNavLink>
-        </MudNavMenu>
-
-        <div class="admin-drawer-version">
-            <div class="admin-drawer-version-label">Version</div>
-            <div class="admin-drawer-version-value">v@(VersionInfo.Version)</div>
-            <div class="admin-drawer-version-built">@VersionInfo.Built</div>
-        </div>
-    </MudDrawer>
-
-    <MudMainContent Class="admin-main">
-        <MudContainer MaxWidth="MaxWidth.False" Class="admin-content">
-            @Body
-        </MudContainer>
-    </MudMainContent>
-</MudLayout>
-
-@code {
-    private bool drawerOpen = true;
-    private bool expandedCRMGroup = true;
-    private bool expandedCustomerGroup = false;
-    private bool expandedWebsiteGroup = false;
-
-    protected override void OnInitialized()
-    {
-        Navigation.LocationChanged += OnLocationChanged;
-    }
-
-    protected override async Task OnAfterRenderAsync(bool firstRender)
-    {
-        if (!firstRender)
-            return;
-
-        var viewportWidth = await JS.InvokeAsync<int>("taxbaikAdminSession.getViewportWidth");
-        drawerOpen = viewportWidth >= 960;
-        StateHasChanged();
-    }
-
-    private void OnLocationChanged(object? sender, LocationChangedEventArgs args)
-    {
-        _ = InvokeAsync(() => JS.InvokeVoidAsync("taxbaikAdminSession.hideLoading"));
-    }
-
-    private void ToggleDrawer()
-    {
-        drawerOpen = !drawerOpen;
-    }
-
-    public void Dispose()
-    {
-        Navigation.LocationChanged -= OnLocationChanged;
-    }
-}

TaxBaik.Web/Components/Admin/Pages/Blog/BlogCreate.razor

@@ -1,167 +0,0 @@
-@page "/admin/blog/create"
-@attribute [Authorize]
-@rendermode @(new InteractiveServerRenderMode(prerender: false))
-@using TaxBaik.Application.DTOs
-@using TaxBaik.Application.Services
-@using TaxBaik.Domain.Interfaces
-@inject BlogService BlogService
-@inject ICategoryRepository CategoryRepository
-@inject NavigationManager Navigation
-@inject ISnackbar Snackbar
-
-<PageTitle>새 포스트 작성</PageTitle>
-
-<section class="admin-page-hero">
-    <div>
-        <MudText Typo="Typo.caption" Class="admin-eyebrow">Content</MudText>
-        <MudText Typo="Typo.h4" Class="admin-page-title">새 포스트 작성</MudText>
-        <MudText Typo="Typo.body2" Class="admin-page-subtitle">새로운 블로그 포스트를 작성합니다.</MudText>
-    </div>
-    <MudButton Variant="Variant.Outlined" StartIcon="@Icons.Material.Filled.Close" @onclick="GoBack">취소</MudButton>
-</section>
-
-<MudPaper Class="pa-4 mt-4" Elevation="1">
-    <MudForm @ref="form">
-        <MudTextField @bind-Value="model.Title" Label="제목 *"
-            Variant="Variant.Outlined" Class="mb-4" Required="true" RequiredError="제목을 입력하세요." Counter="100" MaxLength="100" />
-
-        <MudSelect T="int?" @bind-Value="model.CategoryId" Label="카테고리"
-            Variant="Variant.Outlined" Class="mb-4">
-            @foreach (var category in categories)
-            {
-                <MudSelectItem T="int?" Value="@((int?)category.Id)">@category.Name</MudSelectItem>
-            }
-        </MudSelect>
-
-        <div class="mb-4">
-            <label class="d-block mb-2" style="font-weight: 500;">본문 내용 (마크다운) *</label>
-            <textarea id="markdown-editor" @bind="model.Content" style="display: none;"></textarea>
-            <div id="editor-container" style="border: 1px solid #d0d0d0; border-radius: 4px; min-height: 400px;"></div>
-        </div>
-
-        <MudTextField @bind-Value="model.Tags" Label="태그 (쉼표로 구분)"
-            Variant="Variant.Outlined" Class="mb-4" />
-
-        <MudTextField @bind-Value="model.SeoTitle" Label="SEO 제목"
-            Variant="Variant.Outlined" Class="mb-4" />
-
-        <MudTextField @bind-Value="model.SeoDescription" Label="SEO 설명"
-            Variant="Variant.Outlined" Lines="3" Class="mb-4" />
-
-        <MudCheckBox @bind-Checked="model.IsPublished" Label="즉시 발행" Class="mb-4" />
-
-        <div class="d-flex gap-2">
-            <MudButton Variant="Variant.Filled" Color="Color.Primary"
-                @onclick="SavePost">저장</MudButton>
-        </div>
-    </MudForm>
-</MudPaper>
-
-@code {
-    private MudForm? form;
-    private List<Domain.Entities.Category> categories = [];
-    private CreatePostModel model = new();
-    private EasyMDE.Editor? editor;
-
-    [Inject]
-    private IJSRuntime JS { get; set; } = null!;
-
-    protected override async Task OnInitializedAsync()
-    {
-        categories = (await CategoryRepository.GetAllAsync()).ToList();
-    }
-
-    protected override async Task OnAfterRenderAsync(bool firstRender)
-    {
-        if (firstRender)
-        {
-            await JS.InvokeVoidAsync("window.initMarkdownEditor", "markdown-editor", model.Content ?? "");
-        }
-    }
-
-    private void GoBack()
-    {
-        Navigation.NavigateTo("/taxbaik/admin/blog");
-    }
-
-    private async Task SavePost()
-    {
-        if (form == null)
-            return;
-
-        // 에디터에서 최신 내용 가져오기
-        model.Content = await JS.InvokeAsync<string>("window.getMarkdownContent");
-
-        if (string.IsNullOrWhiteSpace(model.Content))
-        {
-            Snackbar.Add("본문 내용을 입력하세요.", Severity.Error);
-            return;
-        }
-
-        await form.Validate();
-        if (!form.IsValid)
-            return;
-
-        try
-        {
-            await BlogService.CreateAsync(new CreateBlogPostDto
-            {
-                Title = model.Title,
-                Content = model.Content,
-                CategoryId = model.CategoryId,
-                Tags = model.Tags,
-                SeoTitle = model.SeoTitle,
-                SeoDescription = model.SeoDescription,
-                IsPublished = model.IsPublished
-            });
-
-            Snackbar.Add("포스트가 저장되었습니다.", Severity.Success);
-            Navigation.NavigateTo("/taxbaik/admin/blog");
-        }
-        catch (ValidationException ex)
-        {
-            Snackbar.Add(ex.Message, Severity.Error);
-        }
-    }
-
-    private class CreatePostModel
-    {
-        public string Title { get; set; } = "";
-        public string Content { get; set; } = "";
-        public int? CategoryId { get; set; }
-        public string? Tags { get; set; }
-        public string? SeoTitle { get; set; }
-        public string? SeoDescription { get; set; }
-        public bool IsPublished { get; set; }
-    }
-}
-
-<!-- EasyMDE 초기화 스크립트 -->
-<script>
-    window.initMarkdownEditor = function(editorId, initialContent) {
-        if (!window.easyMDEInstance) {
-            window.easyMDEInstance = new EasyMDE({
-                element: document.getElementById(editorId),
-                spellChecker: false,
-                autoDownloadFontAwesome: false,
-                initialValue: initialContent || "",
-                toolbar: [
-                    "bold", "italic", "strikethrough", "|",
-                    "heading", "code", "|",
-                    "unordered-list", "ordered-list", "|",
-                    "link", "image", "table", "|",
-                    "quote", "horizontal-rule", "|",
-                    "preview", "side-by-side", "fullscreen", "|",
-                    "guide"
-                ],
-                previewRender: function(plainText) {
-                    return marked.parse(plainText);
-                }
-            });
-        }
-    };
-
-    window.getMarkdownContent = function() {
-        return window.easyMDEInstance ? window.easyMDEInstance.value() : "";
-    };
-</script>

TaxBaik.Web/Components/Admin/Pages/Blog/BlogEdit.razor

@@ -1,241 +0,0 @@
-@page "/admin/blog/{id:int}/edit"
-@attribute [Authorize]
-@rendermode @(new InteractiveServerRenderMode(prerender: false))
-@using TaxBaik.Application.DTOs
-@using TaxBaik.Application.Services
-@using TaxBaik.Domain.Interfaces
-@inject BlogService BlogService
-@inject ICategoryRepository CategoryRepository
-@inject NavigationManager Navigation
-@inject ISnackbar Snackbar
-@inject IDialogService DialogService
-
-<PageTitle>포스트 수정</PageTitle>
-
-<section class="admin-page-hero">
-    <div>
-        <MudText Typo="Typo.caption" Class="admin-eyebrow">Content</MudText>
-        <MudText Typo="Typo.h4" Class="admin-page-title">포스트 수정</MudText>
-        <MudText Typo="Typo.body2" Class="admin-page-subtitle">블로그 포스트를 수정합니다.</MudText>
-    </div>
-    <MudButton Variant="Variant.Outlined" StartIcon="@Icons.Material.Filled.Close" @onclick="GoBack">취소</MudButton>
-</section>
-
-@if (isLoading)
-{
-    <MudProgressLinear Color="Color.Primary" Indeterminate="true" Class="mt-4" />
-}
-else if (post == null)
-{
-    <MudAlert Severity="Severity.Error" Class="mt-4">포스트를 찾을 수 없습니다.</MudAlert>
-}
-else
-{
-    <MudPaper Class="pa-4 mt-4" Elevation="1">
-        <MudForm @ref="form">
-            <MudTextField @bind-Value="model.Title" Label="제목 *"
-                Variant="Variant.Outlined" Class="mb-4" Required="true" RequiredError="제목을 입력하세요." Counter="100" MaxLength="100" />
-
-            <MudSelect T="int?" @bind-Value="model.CategoryId" Label="카테고리"
-                Variant="Variant.Outlined" Class="mb-4">
-                @foreach (var category in categories)
-                {
-                    <MudSelectItem T="int?" Value="@((int?)category.Id)">@category.Name</MudSelectItem>
-                }
-            </MudSelect>
-
-            <div class="mb-4">
-                <label class="d-block mb-2" style="font-weight: 500;">본문 내용 (마크다운) *</label>
-                <textarea id="markdown-editor" @bind="model.Content" style="display: none;"></textarea>
-                <div id="editor-container" style="border: 1px solid #d0d0d0; border-radius: 4px; min-height: 400px;"></div>
-            </div>
-
-            <MudTextField @bind-Value="model.Tags" Label="태그 (쉼표로 구분)"
-                Variant="Variant.Outlined" Class="mb-4" />
-
-            <MudTextField @bind-Value="model.SeoTitle" Label="SEO 제목"
-                Variant="Variant.Outlined" Class="mb-4" />
-
-            <MudTextField @bind-Value="model.SeoDescription" Label="SEO 설명"
-                Variant="Variant.Outlined" Lines="3" Class="mb-4" />
-
-            <MudCheckBox @bind-Checked="model.IsPublished" Label="발행" Class="mb-4" />
-
-            <div class="d-flex gap-2">
-                <MudButton Variant="Variant.Filled" Color="Color.Primary"
-                    @onclick="SavePost">저장</MudButton>
-                <MudButton Variant="Variant.Outlined" Color="Color.Error"
-                    @onclick="DeletePost">삭제</MudButton>
-            </div>
-        </MudForm>
-    </MudPaper>
-}
-
-@code {
-    [Parameter]
-    public int Id { get; set; }
-
-    [Inject]
-    private IJSRuntime JS { get; set; } = null!;
-
-    private MudForm? form;
-    private Domain.Entities.BlogPost? post;
-    private List<Domain.Entities.Category> categories = [];
-    private EditPostModel model = new();
-    private bool isLoading = true;
-
-    protected override async Task OnInitializedAsync()
-    {
-        try
-        {
-            post = await BlogService.GetByIdAsync(Id);
-            if (post != null)
-            {
-                categories = (await CategoryRepository.GetAllAsync()).ToList();
-                MapPostToModel(post);
-            }
-        }
-        catch (Exception ex)
-        {
-            Snackbar.Add($"포스트 로드 실패: {ex.Message}", Severity.Error);
-        }
-        finally
-        {
-            isLoading = false;
-        }
-    }
-
-    protected override async Task OnAfterRenderAsync(bool firstRender)
-    {
-        if (firstRender && post != null)
-        {
-            await JS.InvokeVoidAsync("window.initMarkdownEditor", "markdown-editor", model.Content ?? "");
-        }
-    }
-
-    private void MapPostToModel(Domain.Entities.BlogPost post)
-    {
-        model.Title = post.Title;
-        model.Content = post.Content;
-        model.CategoryId = post.CategoryId;
-        model.Tags = post.Tags;
-        model.SeoTitle = post.SeoTitle;
-        model.SeoDescription = post.SeoDescription;
-        model.IsPublished = post.IsPublished;
-    }
-
-    private void GoBack()
-    {
-        Navigation.NavigateTo("/taxbaik/admin/blog");
-    }
-
-    private async Task SavePost()
-    {
-        if (form == null || post == null)
-            return;
-
-        // 에디터에서 최신 내용 가져오기
-        model.Content = await JS.InvokeAsync<string>("window.getMarkdownContent");
-
-        if (string.IsNullOrWhiteSpace(model.Content))
-        {
-            Snackbar.Add("본문 내용을 입력하세요.", Severity.Error);
-            return;
-        }
-
-        await form.Validate();
-        if (!form.IsValid)
-            return;
-
-        try
-        {
-            await BlogService.UpdateAsync(post.Id, new CreateBlogPostDto
-            {
-                Title = model.Title,
-                Content = model.Content,
-                CategoryId = model.CategoryId,
-                Tags = model.Tags,
-                SeoTitle = model.SeoTitle,
-                SeoDescription = model.SeoDescription,
-                IsPublished = model.IsPublished
-            });
-
-            Snackbar.Add("포스트가 저장되었습니다.", Severity.Success);
-            Navigation.NavigateTo("/taxbaik/admin/blog");
-        }
-        catch (ValidationException ex)
-        {
-            Snackbar.Add(ex.Message, Severity.Error);
-        }
-        catch (Exception ex)
-        {
-            Snackbar.Add($"저장 실패: {ex.Message}", Severity.Error);
-        }
-    }
-
-    private async Task DeletePost()
-    {
-        if (post == null)
-            return;
-
-        var result = await DialogService.ShowMessageBox(
-            "포스트 삭제",
-            "정말 삭제하시겠습니까? 이 작업은 취소할 수 없습니다.",
-            "삭제", "취소");
-
-        if (result != true)
-            return;
-
-        try
-        {
-            await BlogService.DeleteAsync(post.Id);
-            Snackbar.Add("포스트가 삭제되었습니다.", Severity.Success);
-            Navigation.NavigateTo("/taxbaik/admin/blog");
-        }
-        catch (Exception ex)
-        {
-            Snackbar.Add($"삭제 실패: {ex.Message}", Severity.Error);
-        }
-    }
-
-    private class EditPostModel
-    {
-        public string Title { get; set; } = "";
-        public string Content { get; set; } = "";
-        public int? CategoryId { get; set; }
-        public string? Tags { get; set; }
-        public string? SeoTitle { get; set; }
-        public string? SeoDescription { get; set; }
-        public bool IsPublished { get; set; }
-    }
-}
-
-<!-- EasyMDE 초기화 스크립트 -->
-<script>
-    window.initMarkdownEditor = function(editorId, initialContent) {
-        if (!window.easyMDEInstance) {
-            window.easyMDEInstance = new EasyMDE({
-                element: document.getElementById(editorId),
-                spellChecker: false,
-                autoDownloadFontAwesome: false,
-                initialValue: initialContent || "",
-                toolbar: [
-                    "bold", "italic", "strikethrough", "|",
-                    "heading", "code", "|",
-                    "unordered-list", "ordered-list", "|",
-                    "link", "image", "table", "|",
-                    "quote", "horizontal-rule", "|",
-                    "preview", "side-by-side", "fullscreen", "|",
-                    "guide"
-                ],
-                previewRender: function(plainText) {
-                    return marked.parse(plainText);
-                }
-            });
-        }
-    };
-
-    window.getMarkdownContent = function() {
-        return window.easyMDEInstance ? window.easyMDEInstance.value() : "";
-    };
-</script>

TaxBaik.Web/Components/Admin/Pages/CommonCodes.razor

@@ -1,177 +0,0 @@
-@page "/admin/common-codes"
-@using TaxBaik.Web.Services.AdminClients
-@using TaxBaik.Domain.Entities
-@attribute [Authorize]
-@inject ICommonCodeBrowserClient CommonCodeClient
-@inject ISnackbar Snackbar
-
-<PageTitle>공통관리</PageTitle>
-
-<section class="admin-page-hero">
-    <div>
-        <MudText Typo="Typo.caption" Class="admin-eyebrow">System</MudText>
-        <MudText Typo="Typo.h4" Class="admin-page-title">공통관리</MudText>
-        <MudText Typo="Typo.body2" Class="admin-page-subtitle">공통코드 그룹과 항목을 일관된 기준으로 관리합니다.</MudText>
-    </div>
-</section>
-
-<MudGrid Spacing="2">
-    <MudItem XS="12" MD="4">
-        <MudPaper Class="admin-surface pa-4" Elevation="0">
-            <MudText Typo="Typo.h6" Class="mb-3">그룹</MudText>
-            <MudSelect T="string" Value="@selectedGroup" ValueChanged="OnGroupChanged" Label="코드 그룹" Variant="Variant.Outlined" FullWidth="true">
-                @foreach (var group in groups)
-                {
-                    <MudSelectItem Value="@group">@group</MudSelectItem>
-                }
-            </MudSelect>
-            <MudButton Class="mt-3" Variant="Variant.Filled" Color="Color.Primary" OnClick="PrepareCreate">새 코드 추가</MudButton>
-        </MudPaper>
-    </MudItem>
-
-    <MudItem XS="12" MD="8">
-        <MudPaper Class="admin-surface pa-4" Elevation="0">
-            @if (isLoading)
-            {
-                <MudProgressLinear Indeterminate="true" />
-            }
-            else
-            {
-                <MudTable Items="@codes" Dense="true" Hover="true">
-                    <HeaderContent>
-                        <MudTh>그룹</MudTh>
-                        <MudTh>값</MudTh>
-                        <MudTh>이름</MudTh>
-                        <MudTh>순서</MudTh>
-                        <MudTh>상태</MudTh>
-                        <MudTh>작업</MudTh>
-                    </HeaderContent>
-                    <RowTemplate>
-                        <MudTd>@context.CodeGroup</MudTd>
-                        <MudTd>@context.CodeValue</MudTd>
-                        <MudTd>@context.CodeName</MudTd>
-                        <MudTd>@context.SortOrder</MudTd>
-                        <MudTd>@(context.IsActive ? "활성" : "비활성")</MudTd>
-                        <MudTd>
-                            <MudButton Size="Size.Small" Variant="Variant.Text" OnClick="@(() => EditCode(context))">수정</MudButton>
-                            <MudButton Size="Size.Small" Variant="Variant.Text" Color="Color.Error" OnClick="@(() => DeleteCode(context))">삭제</MudButton>
-                        </MudTd>
-                    </RowTemplate>
-                </MudTable>
-
-                <MudDivider Class="my-4" />
-
-                <MudForm @ref="form">
-                    <MudTextField @bind-Value="editModel.CodeGroup" Label="그룹" Variant="Variant.Outlined" FullWidth="true" Required="true" Disabled="@(!isCreateMode)" Class="mb-3" />
-                    <MudTextField @bind-Value="editModel.CodeValue" Label="값" Variant="Variant.Outlined" FullWidth="true" Required="true" Disabled="@(!isCreateMode)" Class="mb-3" />
-                    <MudTextField @bind-Value="editModel.CodeName" Label="이름" Variant="Variant.Outlined" FullWidth="true" Required="true" Class="mb-3" />
-                    <MudNumericField T="int" @bind-Value="editModel.SortOrder" Label="순서" Variant="Variant.Outlined" FullWidth="true" Class="mb-3" />
-                    <MudSwitch @bind-Checked="editModel.IsActive" Color="Color.Primary">활성</MudSwitch>
-                    <div class="d-flex gap-2 mt-4">
-                        <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="SaveCode">저장</MudButton>
-                        <MudButton Variant="Variant.Outlined" OnClick="PrepareCreate">초기화</MudButton>
-                    </div>
-                </MudForm>
-            }
-        </MudPaper>
-    </MudItem>
-</MudGrid>
-
-@code {
-    private List<string> groups = [];
-    private List<CommonCode> codes = [];
-    private string selectedGroup = "";
-    private bool isLoading = true;
-    private MudForm? form;
-    private CommonCode editModel = new();
-    private bool isCreateMode = true;
-
-    protected override async Task OnInitializedAsync()
-    {
-        groups = await CommonCodeClient.GetGroupsAsync();
-        selectedGroup = groups.FirstOrDefault() ?? "";
-        await LoadCodes();
-        PrepareCreate();
-    }
-
-    private async Task OnGroupChanged(string value)
-    {
-        selectedGroup = value;
-        await LoadCodes();
-        PrepareCreate();
-    }
-
-    private async Task LoadCodes()
-    {
-        isLoading = true;
-        codes = string.IsNullOrWhiteSpace(selectedGroup)
-            ? []
-            : await CommonCodeClient.GetByGroupAsync(selectedGroup);
-        isLoading = false;
-    }
-
-    private void PrepareCreate()
-    {
-        isCreateMode = true;
-        editModel = new CommonCode
-        {
-            CodeGroup = selectedGroup,
-            IsActive = true
-        };
-    }
-
-    private void EditCode(CommonCode code)
-    {
-        isCreateMode = false;
-        editModel = new CommonCode
-        {
-            CodeGroup = code.CodeGroup,
-            CodeValue = code.CodeValue,
-            CodeName = code.CodeName,
-            SortOrder = code.SortOrder,
-            IsActive = code.IsActive
-        };
-    }
-
-    private async Task SaveCode()
-    {
-        if (form != null)
-        {
-            await form.Validate();
-            if (!form.IsValid)
-            {
-                Snackbar.Add("필수 항목을 입력하세요.", Severity.Warning);
-                return;
-            }
-        }
-
-        if (editModel.CodeValue.Contains(' '))
-        {
-            Snackbar.Add("code_value에는 공백을 넣을 수 없습니다.", Severity.Error);
-            return;
-        }
-
-        if (!await CommonCodeClient.UpsertAsync(editModel))
-        {
-            Snackbar.Add("저장 실패", Severity.Error);
-            return;
-        }
-
-        Snackbar.Add("저장되었습니다.", Severity.Success);
-        await LoadCodes();
-        PrepareCreate();
-    }
-
-    private async Task DeleteCode(CommonCode code)
-    {
-        if (!await CommonCodeClient.DeleteAsync(code.CodeGroup, code.CodeValue))
-        {
-            Snackbar.Add("삭제 실패", Severity.Error);
-            return;
-        }
-
-        Snackbar.Add("삭제되었습니다.", Severity.Success);
-        await LoadCodes();
-        PrepareCreate();
-    }
-}

TaxBaik.Web/Components/Admin/Pages/Dashboard.razor

@@ -1,220 +0,0 @@
-@page "/admin/dashboard"
-@attribute [Authorize]
-@using TaxBaik.Web.Services
-@using TaxBaik.Web.Components.Admin.Shared
-@inject IAdminDashboardClient DashboardClient
-@inject NavigationManager Nav
-
-<PageTitle>대시보드</PageTitle>
-
-<section class="admin-page-hero">
-    <div>
-        <MudText Typo="Typo.caption" Class="admin-eyebrow">Overview</MudText>
-        <MudText Typo="Typo.h4" Class="admin-page-title">대시보드</MudText>
-        <MudText Typo="Typo.body2" Class="admin-page-subtitle">문의 흐름과 콘텐츠 상태를 한 화면에서 확인합니다.</MudText>
-    </div>
-    <MudButton Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Add" Href="/taxbaik/admin/blog/create">
-        새 포스트 작성
-    </MudButton>
-</section>
-
-@if (!string.IsNullOrEmpty(errorMessage))
-{
-    <MudAlert Severity="Severity.Error" Class="mb-4">@errorMessage</MudAlert>
-}
-@if (isLoading)
-{
-    <MudProgressLinear Color="Color.Primary" Indeterminate="true" Class="mb-4" />
-}
-
-<!-- Metrics Grid -->
-<div class="admin-metric-grid">
-    <div class="admin-metric-card accent-blue cursor-pointer" @onclick='(() => Nav.NavigateTo("/taxbaik/admin/inquiries"))'>
-        <div class="admin-metric-card-body">
-            <span class="admin-metric-card-label">이번달 문의</span>
-            <div class="admin-metric-card-value-row">
-                <span class="admin-metric-card-value" style="color: var(--primary-dark);">@summary.ThisMonthInquiries</span>
-                <span class="admin-metric-card-icon" style="color: var(--primary-color);">💬</span>
-            </div>
-            <span class="admin-metric-card-caption">월간 상담 유입 (클릭 시 이동)</span>
-        </div>
-    </div>
-
-    <div class="admin-metric-card accent-amber cursor-pointer" @onclick='(() => Nav.NavigateTo("/taxbaik/admin/inquiries?status=new"))'>
-        <div class="admin-metric-card-body">
-            <span class="admin-metric-card-label">신규 문의</span>
-            <div class="admin-metric-card-value-row">
-                <span class="admin-metric-card-value" style="color: var(--tertiary-dark);">@summary.NewInquiries</span>
-                <span class="admin-metric-card-icon" style="color: var(--tertiary-color);">⚠️</span>
-            </div>
-            <span class="admin-metric-card-caption">처리 대기 (클릭 시 이동)</span>
-        </div>
-    </div>
-
-    <div class="admin-metric-card accent-slate cursor-pointer" @onclick='(() => Nav.NavigateTo("/taxbaik/admin/blog"))'>
-        <div class="admin-metric-card-body">
-            <span class="admin-metric-card-label">전체 포스트</span>
-            <div class="admin-metric-card-value-row">
-                <span class="admin-metric-card-value" style="color: #455a64;">@summary.TotalPosts</span>
-                <span class="admin-metric-card-icon" style="color: #607d8b;">📄</span>
-            </div>
-            <span class="admin-metric-card-caption">콘텐츠 자산 (클릭 시 이동)</span>
-        </div>
-    </div>
-
-    <div class="admin-metric-card accent-green cursor-pointer" @onclick='(() => Nav.NavigateTo("/taxbaik/admin/blog"))'>
-        <div class="admin-metric-card-body">
-            <span class="admin-metric-card-label">발행된 포스트</span>
-            <div class="admin-metric-card-value-row">
-                <span class="admin-metric-card-value" style="color: var(--secondary-dark);">@summary.PublishedPosts</span>
-                <span class="admin-metric-card-icon" style="color: var(--secondary-color);">🌐</span>
-            </div>
-            <span class="admin-metric-card-caption">검색 노출 대상 (클릭 시 이동)</span>
-        </div>
-    </div>
-</div>
-
-@if (upcomingFilings.Count > 0)
-{
-    <MudPaper Class="admin-surface mt-4" Elevation="0">
-        <div class="admin-section-header">
-            <div>
-                <MudText Typo="Typo.h6">이번 달 마감 임박 신고</MudText>
-                <MudText Typo="Typo.body2">30일 이내 신고 예정 건 (고객명 클릭 시 상세 카드로 연결)</MudText>
-            </div>
-            <MudButton Variant="Variant.Outlined" Color="Color.Primary" Href="/taxbaik/admin/tax-filings">전체 일정 보기</MudButton>
-        </div>
-        <MudSimpleTable Striped="true" Dense="true" Class="admin-table">
-            <thead>
-                <tr>
-                    <th>고객</th>
-                    <th>신고 유형</th>
-                    <th>기한</th>
-                    <th>D-day</th>
-                </tr>
-            </thead>
-            <tbody>
-                @foreach (var f in upcomingFilings)
-                {
-                    var dday = BusinessDayCalculator.GetDday(DateOnly.FromDateTime(f.DueDate));
-                    var effectiveDueDate = BusinessDayCalculator.GetEffectiveDueDate(DateOnly.FromDateTime(f.DueDate));
-                    <tr>
-                        <td>
-                            <MudLink Href="@($"/taxbaik/admin/clients/{f.ClientId}")" Underline="Underline.Hover" Color="Color.Primary" Class="font-weight-bold">
-                                @f.ClientName
-                            </MudLink>
-                        </td>
-                        <td>@f.FilingType</td>
-                        <td>@effectiveDueDate.ToDateTime(TimeOnly.MinValue).ToString("yyyy-MM-dd")</td>
-                        <td>
-                            @if (dday < 0)
-                            {
-                                <MudChip T="string" Size="Size.Small" Color="Color.Dark">기한 초과 (@(-dday)일)</MudChip>
-                            }
-                            else if (dday <= 7)
-                            {
-                                <MudChip T="string" Size="Size.Small" Color="Color.Error">D-@dday</MudChip>
-                            }
-                            else
-                            {
-                                <span>D-@dday</span>
-                            }
-                        </td>
-                    </tr>
-                }
-            </tbody>
-        </MudSimpleTable>
-    </MudPaper>
-}
-
-<MudPaper Class="admin-surface mt-4" Elevation="0">
-    <div class="admin-section-header">
-        <div>
-            <MudText Typo="Typo.h6">최근 문의</MudText>
-            <MudText Typo="Typo.body2">최근 유입된 상담 요청을 빠르게 확인합니다. (이름 클릭 시 상세 관리 화면으로 연계)</MudText>
-        </div>
-        <MudButton Variant="Variant.Outlined" Color="Color.Primary" Href="/taxbaik/admin/inquiries">문의 전체 보기</MudButton>
-    </div>
-    <MudSimpleTable Striped="true" Dense="true" Class="admin-table">
-        <thead>
-            <tr>
-                <th>이름</th>
-                <th>전화</th>
-                <th>분야</th>
-                <th>상태</th>
-                <th>날짜</th>
-            </tr>
-        </thead>
-        <tbody>
-            @foreach (var inquiry in summary.RecentInquiries)
-            {
-                <tr>
-                    <td>
-                        <MudLink Href="@($"/taxbaik/admin/inquiries?id={inquiry.Id}")" Underline="Underline.Hover" Color="Color.Primary" Class="font-weight-bold">
-                            @inquiry.Name
-                        </MudLink>
-                    </td>
-                    <td>@inquiry.Phone</td>
-                    <td>@inquiry.ServiceType</td>
-                    <td>
-                        <MudChip T="string" Size="Size.Small" Color="@StatusColor(inquiry.Status)">
-                            @GetStatusLabel(inquiry.Status)
-                        </MudChip>
-                    </td>
-                    <td>@inquiry.CreatedAt.ToString("yyyy-MM-dd")</td>
-                </tr>
-            }
-        </tbody>
-    </MudSimpleTable>
-</MudPaper>
-
-@code {
-    [CascadingParameter]
-    private Task<AuthenticationState>? AuthStateTask { get; set; }
-
-    private AdminDashboardSummary summary = new(0, 0, 0, 0, []);
-    private List<Domain.Entities.TaxFiling> upcomingFilings = [];
-    private string? errorMessage;
-    private bool isLoading = true;
-
-    protected override async Task OnInitializedAsync()
-    {
-        if (AuthStateTask != null)
-        {
-            var authState = await AuthStateTask;
-            if (authState.User.Identity?.IsAuthenticated == true)
-            {
-                try
-                {
-                    var summaryTask = DashboardClient.GetSummaryAsync();
-                    var filingsTask = DashboardClient.GetUpcomingFilingsAsync(30);
-
-                    await Task.WhenAll(summaryTask, filingsTask);
-                    summary = await summaryTask;
-                    upcomingFilings = (await filingsTask).ToList();
-                }
-                catch (Exception ex)
-                {
-                    errorMessage = "대시보드 데이터를 불러올 수 없습니다.";
-                    Console.Error.WriteLine($"Dashboard error: {ex.Message}");
-                }
-                finally
-                {
-                    isLoading = false;
-                }
-            }
-        }
-    }
-
-    private static string GetStatusLabel(string status) => InquiryStatusMapper.Labels.GetValueOrDefault(status, status);
-
-    private static Color StatusColor(string status) => status switch
-    {
-        "new"        => Color.Warning,
-        "consulting" => Color.Info,
-        "contracted" => Color.Success,
-        "rejected"   => Color.Error,
-        "closed"     => Color.Dark,
-        _            => Color.Default
-    };
-}

TaxBaik.Web/Components/Admin/Pages/Inquiries/InquiryCreate.razor

@@ -1,55 +0,0 @@
-@page "/admin/inquiries/create"
-@attribute [Authorize]
-@using TaxBaik.Application.DTOs
-@using TaxBaik.Application.Services
-@using TaxBaik.Web.Components.Admin.Forms
-@inject InquiryService InquiryService
-@inject NavigationManager Navigation
-@inject ISnackbar Snackbar
-
-<PageTitle>문의 등록</PageTitle>
-
-<section class="admin-page-hero">
-    <div>
-        <MudText Typo="Typo.caption" Class="admin-eyebrow">Customer Relations</MudText>
-        <MudText Typo="Typo.h4" Class="admin-page-title">새 문의 등록</MudText>
-        <MudText Typo="Typo.body2" Class="admin-page-subtitle">고객 문의를 등록합니다. (전화, 오프라인 등)</MudText>
-    </div>
-    <MudButton Variant="Variant.Outlined" StartIcon="@Icons.Material.Filled.Close" @onclick="GoBack">취소</MudButton>
-</section>
-
-<MudPaper Class="pa-4 mt-4" Elevation="1">
-    <InquiryForm ButtonText="등록" OnSubmit="HandleCreate" OnCancel="GoBack" />
-</MudPaper>
-
-@code {
-    private void GoBack()
-    {
-        Navigation.NavigateTo("/taxbaik/admin/inquiries");
-    }
-
-    private async Task HandleCreate(InquiryForm.InquiryFormModel model)
-    {
-        try
-        {
-            await InquiryService.SubmitAsync(
-                model.Name,
-                model.Phone,
-                model.ServiceType,
-                model.Message,
-                model.Email,
-                ipAddress: "admin-registered");
-
-            Snackbar.Add("문의가 등록되었습니다.", Severity.Success);
-            Navigation.NavigateTo("/taxbaik/admin/inquiries");
-        }
-        catch (ValidationException ex)
-        {
-            Snackbar.Add(ex.Message, Severity.Error);
-        }
-        catch (Exception ex)
-        {
-            Snackbar.Add($"등록 실패: {ex.Message}", Severity.Error);
-        }
-    }
-}

TaxBaik.Web/Components/Admin/Shared/BusinessDayCalculator.cs

@@ -1,88 +0,0 @@
-namespace TaxBaik.Web.Components.Admin.Shared;
-
-public static class BusinessDayCalculator
-{
-    private sealed record HolidayWindow(DateOnly Start, DateOnly End)
-    {
-        public IEnumerable<DateOnly> Dates()
-        {
-            for (var date = Start; date <= End; date = date.AddDays(1))
-            {
-                yield return date;
-            }
-        }
-    }
-
-    private static readonly HolidayWindow[] HolidayWindows =
-    {
-        new(new DateOnly(2026, 1, 1), new DateOnly(2026, 1, 1)),
-        new(new DateOnly(2026, 2, 16), new DateOnly(2026, 2, 18)),
-        new(new DateOnly(2026, 3, 1), new DateOnly(2026, 3, 2)),
-        new(new DateOnly(2026, 5, 5), new DateOnly(2026, 5, 5)),
-        new(new DateOnly(2026, 6, 6), new DateOnly(2026, 6, 6)),
-        new(new DateOnly(2026, 8, 15), new DateOnly(2026, 8, 17)),
-        new(new DateOnly(2026, 9, 24), new DateOnly(2026, 9, 26)),
-        new(new DateOnly(2026, 10, 3), new DateOnly(2026, 10, 5)),
-        new(new DateOnly(2026, 10, 9), new DateOnly(2026, 10, 9)),
-        new(new DateOnly(2026, 12, 25), new DateOnly(2026, 12, 25))
-    };
-
-    private static readonly HashSet<DateOnly> HolidayDates = BuildHolidayDates();
-
-    public static DateOnly GetEffectiveDueDate(DateOnly dueDate)
-    {
-        var effectiveDate = dueDate;
-        while (!IsBusinessDay(effectiveDate))
-        {
-            effectiveDate = effectiveDate.AddDays(1);
-        }
-
-        return effectiveDate;
-    }
-
-    public static int GetDday(DateOnly dueDate, DateOnly? referenceDate = null)
-    {
-        var today = referenceDate ?? DateOnly.FromDateTime(DateTime.Today);
-        var effectiveDueDate = GetEffectiveDueDate(dueDate);
-        return effectiveDueDate.DayNumber - today.DayNumber;
-    }
-
-    public static bool IsBusinessDay(DateOnly date)
-        => date.DayOfWeek is not DayOfWeek.Saturday and not DayOfWeek.Sunday
-           && !HolidayDates.Contains(date);
-
-    private static HashSet<DateOnly> BuildHolidayDates()
-    {
-        var holidays = new HashSet<DateOnly>();
-
-        foreach (var window in HolidayWindows)
-        {
-            foreach (var date in window.Dates())
-            {
-                holidays.Add(date);
-            }
-        }
-
-        // 주말과 연속 공휴일 뒤에 붙는 대체휴일을 다음 영업일로 자동 확장한다.
-        foreach (var window in HolidayWindows)
-        {
-            foreach (var date in window.Dates())
-            {
-                if (date.DayOfWeek is not DayOfWeek.Saturday and not DayOfWeek.Sunday)
-                {
-                    continue;
-                }
-
-                var substitute = date.AddDays(1);
-                while (substitute.DayOfWeek is DayOfWeek.Saturday or DayOfWeek.Sunday || holidays.Contains(substitute))
-                {
-                    substitute = substitute.AddDays(1);
-                }
-
-                holidays.Add(substitute);
-            }
-        }
-
-        return holidays;
-    }
-}