feat(blog): add archived post restore workflow

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

@@ -7,6 +7,14 @@
 
 <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>
@@ -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>
-                <MudButton Variant="Variant.Text" Size="Size.Small" Color="Color.Error"
-                    @onclick="@(async () => await DeletePost(cell.Item.Id))">삭제</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>
@@ -61,6 +77,7 @@
     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 +102,9 @@
         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 +174,26 @@
         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();
 }