Add route isolation smoke harness

playwright.config.ts

@@ -46,6 +46,11 @@ export default defineConfig({
       name: 'Admin Smoke',
       testMatch: /admin-smoke\.spec\.ts$/,
       use: { ...devices['Desktop Chrome'] }
+    },
+    {
+      name: 'Route Isolation',
+      testMatch: /route-isolation\.spec\.ts$/,
+      use: { ...devices['Desktop Chrome'] }
     }
   ]
 });

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

@@ -6,7 +6,31 @@
         if (!firstRender)
             return;
 
-        var returnUrl = Uri.EscapeDataString(Navigation.ToBaseRelativePath(Navigation.Uri));
+        var returnUrl = Uri.EscapeDataString(GetSafeReturnUrl());
         Navigation.NavigateTo($"/taxbaik/admin/login?returnUrl={returnUrl}", replace: true);
     }
+
+    private string GetSafeReturnUrl()
+    {
+        try
+        {
+            var current = new Uri(Navigation.Uri);
+            var baseUri = new Uri(Navigation.BaseUri);
+
+            if (current.IsAbsoluteUri &&
+                string.Equals(current.Scheme, baseUri.Scheme, StringComparison.OrdinalIgnoreCase) &&
+                string.Equals(current.Authority, baseUri.Authority, StringComparison.OrdinalIgnoreCase) &&
+                current.AbsolutePath.StartsWith(baseUri.AbsolutePath, StringComparison.OrdinalIgnoreCase))
+            {
+                var relative = current.AbsolutePath[baseUri.AbsolutePath.Length..] + current.Query + current.Fragment;
+                return string.IsNullOrWhiteSpace(relative) ? "dashboard" : relative.TrimStart('/');
+            }
+        }
+        catch
+        {
+            // Fall through to a safe default.
+        }
+
+        return "dashboard";
+    }
 }

src/TaxBaik.Web/Program.cs

@@ -476,8 +476,9 @@ app.MapHealthChecks("/healthz");
 app.MapRazorPages();  // Sitemap.cshtml, Rss.cshtml, Feed.cshtml
 app.MapStaticAssets();
 
-// Blazor WebAssembly - prerender 지원
-app.MapRazorComponents<TaxBaik.WasmClient.Components.Admin.App>()
+// Blazor WebAssembly - 관리자 앱은 /taxbaik/admin 아래에서만 렌더링
+app.MapGroup("/taxbaik/admin")
+   .MapRazorComponents<TaxBaik.WasmClient.Components.Admin.App>()
    .AddInteractiveWebAssemblyRenderMode()
    .AllowAnonymous();
 

tests/e2e/public-smoke.spec.ts

@@ -4,10 +4,12 @@ import { captureEvidence } from './helpers/evidence';
 const baseUrl = (process.env.E2E_BASE_URL ?? 'https://www.taxbaik.com/taxbaik').replace(/\/$/, '');
 
 test.describe('public smoke', () => {
-  test('@smoke loads the main public pages with SEO basics', async ({ page }) => {
+  test('@smoke loads the home page and key public pages with SEO basics', async ({ page }) => {
     await page.goto(baseUrl);
     await expect(page).toHaveTitle(/백원숙 세무회계/);
     await expect(page).not.toHaveTitle(/관리자/);
+    await expect(page.getByRole('heading', { name: /세금과 자산|백원숙 세무회계/ })).toBeVisible();
+    await expect(page.getByRole('link', { name: /상담 신청|무료 상담 신청/ })).toBeVisible();
     await expect(page.locator('meta[name="description"]')).toHaveAttribute('content', /사업자 기장|부동산|종합소득세/);
     await expect(page.getByRole('heading', { name: /상담 과정/ })).toBeVisible();
 

tests/e2e/route-isolation.spec.ts

@@ -0,0 +1,20 @@
+import { expect, test } from '@playwright/test';
+
+const baseUrl = (process.env.E2E_BASE_URL ?? 'https://www.taxbaik.com/taxbaik').replace(/\/$/, '');
+
+test.describe('route isolation', () => {
+  test('public home does not boot the admin app', async ({ page }) => {
+    await page.goto(baseUrl);
+    await expect(page).not.toHaveTitle(/관리자/);
+    await expect(page).toHaveTitle(/백원숙 세무회계/);
+    await expect(page.getByRole('heading', { name: /상담 과정/ })).toBeVisible();
+    await expect(page.getByRole('link', { name: /카카오 상담하기|카카오채널 문의/ })).toBeVisible();
+  });
+
+  test('admin login boots the admin app under the admin base path', async ({ page }) => {
+    await page.goto(`${baseUrl}/admin/login`);
+    await expect(page).toHaveTitle(/관리자 로그인/);
+    await expect(page).toHaveURL(/\/taxbaik\/admin\/login$/);
+    await expect(page.getByRole('heading', { name: /관리자 로그인/ })).toBeVisible();
+  });
+});