Fix admin wasm bootstrap and dashboard routing

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

@@ -10,7 +10,6 @@
     <link rel="alternate icon" href="/taxbaik/favicon.ico" />
     <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" />
     <script>
         window.taxbaikAdminBuildVersion = 'unknown';
         window.taxbaikAdminComponent = 'AdminApp';
@@ -35,7 +34,6 @@
         </div>
     </div>
     <Routes @rendermode="@(new InteractiveWebAssemblyRenderMode(prerender: false))" />
-    <script src="_content/MudBlazor/MudBlazor.min.js"></script>
     <script src="js/admin-session.js"></script>
     <script src="_framework/blazor.webassembly.js"></script>
     <script>

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

@@ -1,11 +1,18 @@
+@page "/"
 @page "/admin"
 @rendermode @(new InteractiveWebAssemblyRenderMode(prerender: false))
 @attribute [Authorize]
-@inject NavigationManager NavigationManager
 
-@code {
-    protected override void OnInitialized()
-    {
-        NavigationManager.NavigateTo("/taxbaik/admin/dashboard", replace: true);
-    }
-}
+<PageTitle>관리자</PageTitle>
+
+<section class="admin-simple-page">
+    <header class="admin-simple-header">
+        <p class="admin-simple-eyebrow">Admin</p>
+        <h1 class="admin-simple-title">관리자 시작 화면</h1>
+        <p class="admin-simple-subtitle">이 페이지는 라우팅과 렌더링만 확인하기 위한 최소 시작점입니다.</p>
+    </header>
+
+    <div class="admin-simple-card">
+        관리자 시작 화면이 정상 렌더링되면 부트스트랩 자체는 동작합니다.
+    </div>
+</section>

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

@@ -1,3 +1,4 @@
+@page "/dashboard"
 @page "/admin/dashboard"
 @rendermode @(new InteractiveWebAssemblyRenderMode(prerender: false))
 @attribute [Authorize]

src/TaxBaik.Web.Client/Components/Admin/Pages/DashboardOverview.razor

@@ -1,10 +1,14 @@
 <PageTitle>대시보드</PageTitle>
 
-<AdminPageHeader Title="대시보드" Eyebrow="Home" Subtitle="관리자 대시보드 초기화 문제를 분리하는 최소 렌더 화면입니다." />
+<section class="admin-simple-page">
+    <header class="admin-simple-header">
+        <p class="admin-simple-eyebrow">Home</p>
+        <h1 class="admin-simple-title">대시보드</h1>
+        <p class="admin-simple-subtitle">관리자 대시보드 초기화 문제를 분리하는 최소 렌더 화면입니다.</p>
+    </header>
 
-<AdminDataPanel>
-    <div class="admin-note-list">
+    <div class="admin-simple-card">
         <div>대시보드 본문을 단계적으로 복원하며 `get` interop 오류를 추적합니다.</div>
         <div>현재 화면은 JS 호출 없이 렌더만 수행합니다.</div>
     </div>
-</AdminDataPanel>
+</section>

src/TaxBaik.Web.Client/Program.cs

@@ -1,20 +1,11 @@
 using Microsoft.AspNetCore.Components.Authorization;
 using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
-using MudBlazor.Services;
 using TaxBaik.Application.Services;
 using TaxBaik.Web.Services;
 using TaxBaik.Web.Services.AdminClients;
 
 var builder = WebAssemblyHostBuilder.CreateDefault(args);
 
-// MudBlazor (WASM 측 인터랙티브 컴포넌트용)
-builder.Services.AddMudServices(config =>
-{
-    config.SnackbarConfiguration.HideTransitionDuration = 400;
-    config.SnackbarConfiguration.ShowTransitionDuration = 300;
-    config.PopoverOptions.ThrowOnDuplicateProvider = false;
-});
-
 // API Base Url: Admin SPA is hosted under /taxbaik/admin/, while APIs live under /taxbaik/api/.
 var hostBase = new Uri(builder.HostEnvironment.BaseAddress);
 var apiBaseUrl = new Uri(hostBase, "/taxbaik/api/").ToString();

src/TaxBaik.Web/Program.cs

@@ -436,7 +436,13 @@ app.Use(async (context, next) =>
     if (path.Contains("resource-collection") && path.EndsWith(".js"))
     {
         context.Response.ContentType = "application/javascript";
-        await context.Response.WriteAsync("export default [];");
+        await context.Response.WriteAsync("""
+export function get() {
+    return [];
+}
+
+export default { get };
+""");
         return;
     }
     await next();