Stabilize admin rendering and deploy auth

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

@@ -3,7 +3,7 @@
 @{ ViewData["Title"] = "공지사항"; }
 
 <section class="admin-page-shell">
-    <partial name="_AdminPageHeader" model='("Content", "공지사항 관리", "공지 목록을 서버 렌더링으로 표시합니다.", "/admin/announcements/create", "공지 작성")' />
+    @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">
@@ -19,7 +19,7 @@
                 <tbody>
                 @if (Model.Items.Count == 0)
                 {
-                    <tr><td colspan="5"><partial name="_EmptyState" model="공지사항이 없습니다." /></td></tr>
+                    <tr><td colspan="5">@await Html.PartialAsync("_EmptyState", "공지사항이 없습니다.")</td></tr>
                 }
                 else
                 {
@@ -28,7 +28,7 @@
                         <tr>
                             <td class="fw-semibold">@item.Title</td>
                             <td>@item.DisplayType</td>
-                            <td><partial name="_StatusBadge" model="@(item.IsActive ? "active" : "inactive")" /></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">
@@ -44,3 +44,12 @@
         </div>
     </div>
 </section>
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