Align admin list empty states and blog category guard

src/TaxBaik.Application/Services/BlogService.cs

@@ -8,7 +8,11 @@ using TaxBaik.Domain.Interfaces;
 
 using Microsoft.Extensions.Caching.Memory;
 
-public class BlogService(IBlogPostRepository repository, IMemoryCache memoryCache, IValidator<CreateBlogPostDto> validator)
+public class BlogService(
+    IBlogPostRepository repository,
+    ICategoryRepository categoryRepository,
+    IMemoryCache memoryCache,
+    IValidator<CreateBlogPostDto> validator)
 {
     public async Task<BlogPost?> GetByIdAsync(int id, CancellationToken ct = default) =>
         await repository.GetByIdAsync(id, ct);
@@ -62,6 +66,7 @@ public class BlogService(IBlogPostRepository repository, IMemoryCache memoryCach
     public async Task<BlogPost> CreateAsync(CreateBlogPostDto dto, CancellationToken ct = default)
     {
         validator.ValidateAndThrow(dto);
+        dto.CategoryId = await EnsureCategoryIdAsync(dto.CategoryId, ct);
         var post = new BlogPost
         {
             Title = dto.Title,
@@ -90,6 +95,7 @@ public class BlogService(IBlogPostRepository repository, IMemoryCache memoryCach
     public async Task<BlogPost?> UpdateAsync(int id, CreateBlogPostDto dto, CancellationToken ct = default)
     {
         validator.ValidateAndThrow(dto);
+        dto.CategoryId = await EnsureCategoryIdAsync(dto.CategoryId, ct);
         var post = await repository.GetByIdAsync(id, ct);
         if (post == null)
             return null;
@@ -178,6 +184,15 @@ public class BlogService(IBlogPostRepository repository, IMemoryCache memoryCach
 
     private static int NormalizePageSize(int pageSize) => Math.Clamp(pageSize, 1, 100);
 
+    private async Task<int> EnsureCategoryIdAsync(int categoryId, CancellationToken ct)
+    {
+        if (categoryId > 0)
+            return categoryId;
+
+        var firstCategory = (await categoryRepository.GetAllAsync(ct)).FirstOrDefault();
+        return firstCategory?.Id ?? throw new ValidationException("블로그 카테고리를 먼저 생성하세요.");
+    }
+
     public async Task<(int TotalPosts, int PublishedPosts)> GetStatsAsync(CancellationToken ct = default)
     {
         var posts = (await repository.GetAllForAdminAsync(ct)).ToList();

src/TaxBaik.Web/Pages/Admin/Announcements/Index.cshtml

@@ -5,43 +5,45 @@
 <section class="admin-page-shell">
     @await Html.PartialAsync("_AdminPageHeader", new TaxBaik.Web.Models.AdminPageHeaderModel("Content", "공지사항 관리", "공지 목록을 서버 렌더링으로 표시합니다.", "/admin/announcements/create", "공지 작성"))
     <div class="card">
-        <div class="table-responsive">
-            <table class="table table-vcenter card-table table-hover">
-                <thead>
-                    <tr>
-                        <th>제목</th>
-                        <th>유형</th>
-                        <th>활성</th>
-                        <th>정렬</th>
-                        <th class="text-end">작업</th>
-                    </tr>
-                </thead>
-                <tbody>
-                @if (Model.Items.Count == 0)
-                {
-                    <tr><td colspan="5">@await Html.PartialAsync("_EmptyState", "공지사항이 없습니다.")</td></tr>
-                }
-                else
-                {
-                    foreach (var item in Model.Items)
-                    {
+        @if (Model.Items.Count == 0)
+        {
+            <div class="card-body">
+                @await Html.PartialAsync("_EmptyState", "공지사항이 없습니다.")
+            </div>
+        }
+        else
+        {
+            <div class="table-responsive">
+                <table class="table table-vcenter card-table table-hover">
+                    <thead>
                         <tr>
-                            <td class="fw-semibold">@item.Title</td>
-                            <td>@item.DisplayType</td>
-                            <td>@await Html.PartialAsync("_StatusBadge", item.IsActive ? "active" : "inactive")</td>
-                            <td>@item.SortOrder</td>
-                            <td class="text-end">
-                                <div class="btn-list flex-nowrap justify-content-end">
-                                    <a class="btn btn-sm btn-outline-secondary" href="/admin/announcements/@item.Id">상세</a>
-                                    <a class="btn btn-sm btn-primary" href="/admin/announcements/@item.Id/edit">수정</a>
-                                </div>
-                            </td>
+                            <th>제목</th>
+                            <th>유형</th>
+                            <th>활성</th>
+                            <th>정렬</th>
+                            <th class="text-end">작업</th>
                         </tr>
-                    }
-                }
-                </tbody>
-            </table>
-        </div>
+                    </thead>
+                    <tbody>
+                        @foreach (var item in Model.Items)
+                        {
+                            <tr>
+                                <td class="fw-semibold">@item.Title</td>
+                                <td>@item.DisplayType</td>
+                                <td>@await Html.PartialAsync("_StatusBadge", item.IsActive ? "active" : "inactive")</td>
+                                <td>@item.SortOrder</td>
+                                <td class="text-end">
+                                    <div class="btn-list flex-nowrap justify-content-end">
+                                        <a class="btn btn-sm btn-outline-secondary" href="/admin/announcements/@item.Id">상세</a>
+                                        <a class="btn btn-sm btn-primary" href="/admin/announcements/@item.Id/edit">수정</a>
+                                    </div>
+                                </td>
+                            </tr>
+                        }
+                    </tbody>
+                </table>
+            </div>
+        }
     </div>
 </section>
 

src/TaxBaik.Web/Pages/Admin/Blog/Index.cshtml

@@ -24,48 +24,48 @@
     </form>
 
     <div class="card">
-        <div class="table-responsive">
-            <table class="table table-vcenter card-table table-hover">
-                <thead>
-                    <tr>
-                        <th>제목</th>
-                        <th>발행</th>
-                        <th>조회수</th>
-                        <th>작성일</th>
-                        <th class="text-end">작업</th>
-                    </tr>
-                </thead>
-                <tbody>
-                @if (Model.Items.Count == 0)
-                {
-                    <tr>
-                        <td colspan="5">@await Html.PartialAsync("_EmptyState", "블로그 글이 없습니다.")</td>
-                    </tr>
-                }
-                else
-                {
-                    foreach (var post in Model.Items)
-                    {
+        @if (Model.Items.Count == 0)
+        {
+            <div class="card-body">
+                @await Html.PartialAsync("_EmptyState", "블로그 글이 없습니다.")
+            </div>
+        }
+        else
+        {
+            <div class="table-responsive">
+                <table class="table table-vcenter card-table table-hover">
+                    <thead>
                         <tr>
-                            <td>
-                                <div class="fw-semibold">@post.Title</div>
-                                <div class="text-muted small">@post.Slug</div>
-                            </td>
-                            <td>@await Html.PartialAsync("_StatusBadge", post.IsPublished ? "active" : "inactive")</td>
-                            <td>@post.ViewCount</td>
-                            <td>@post.CreatedAt.ToString("yyyy-MM-dd")</td>
-                            <td class="text-end">
-                                <div class="btn-list flex-nowrap justify-content-end">
-                                    <a class="btn btn-sm btn-primary" href="/admin/blog/@post.Id/edit">수정</a>
-                                    <a class="btn btn-sm btn-outline-secondary" href="/blog/@post.Slug" target="_blank">보기</a>
-                                </div>
-                            </td>
+                            <th>제목</th>
+                            <th>발행</th>
+                            <th>조회수</th>
+                            <th>작성일</th>
+                            <th class="text-end">작업</th>
                         </tr>
-                    }
-                }
-                </tbody>
-            </table>
-        </div>
+                    </thead>
+                    <tbody>
+                        @foreach (var post in Model.Items)
+                        {
+                            <tr>
+                                <td>
+                                    <div class="fw-semibold">@post.Title</div>
+                                    <div class="text-muted small">@post.Slug</div>
+                                </td>
+                                <td>@await Html.PartialAsync("_StatusBadge", post.IsPublished ? "active" : "inactive")</td>
+                                <td>@post.ViewCount</td>
+                                <td>@post.CreatedAt.ToString("yyyy-MM-dd")</td>
+                                <td class="text-end">
+                                    <div class="btn-list flex-nowrap justify-content-end">
+                                        <a class="btn btn-sm btn-primary" href="/admin/blog/@post.Id/edit">수정</a>
+                                        <a class="btn btn-sm btn-outline-secondary" href="/blog/@post.Slug" target="_blank">보기</a>
+                                    </div>
+                                </td>
+                            </tr>
+                        }
+                    </tbody>
+                </table>
+            </div>
+        }
     </div>
 </section>