Standardize admin pages and blog editor

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

@@ -1,4 +1,34 @@
 @page
 @model TaxBaik.Web.Pages.Admin.Announcements.IndexModel
 @{ ViewData["Title"] = "공지사항"; }
-<section class="container py-5"><h1 class="h2 fw-bold">공지사항 관리</h1></section>
+
+<section class="container-fluid py-4">
+    <partial name="_AdminPageHeader" model='("Content", "공지사항 관리", "공지 목록을 서버 렌더링으로 표시합니다.", null, null)' />
+    <div class="card">
+        <div class="table-responsive">
+            <table class="table table-vcenter card-table">
+                <thead>
+                    <tr><th>제목</th><th>유형</th><th>활성</th><th>정렬</th></tr>
+                </thead>
+                <tbody>
+                @if (Model.Items.Count == 0)
+                {
+                    <tr><td colspan="4"><partial name="_EmptyState" model="공지사항이 없습니다." /></td></tr>
+                }
+                else
+                {
+                    foreach (var item in Model.Items)
+                    {
+                        <tr>
+                            <td>@item.Title</td>
+                            <td>@item.DisplayType</td>
+                            <td><partial name="_StatusBadge" model="@(item.IsActive ? "active" : "inactive")" /></td>
+                            <td>@item.SortOrder</td>
+                        </tr>
+                    }
+                }
+                </tbody>
+            </table>
+        </div>
+    </div>
+</section>