add admin sidebar layout with responsive drawer navigation

- New admin root + child layouts with daisyUI drawer sidebar
- AdminLayoutHook tracks current path for active nav highlighting
- Split router into :admin, :admin_theme, :user_settings live_sessions
- Theme editor stays full-screen with back link to admin
- Admin bar on shop pages for logged-in users (mount_current_scope)
- Strip Layouts.app wrapper from admin LiveViews
- Remove nav from root.html.heex (now only serves auth pages)
- 9 new layout tests covering sidebar, active state, theme editor, admin bar

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

test/simpleshop_theme_web/controllers/user_session_controller_test.exs

@@ -20,12 +20,10 @@ defmodule SimpleshopThemeWeb.UserSessionControllerTest do
       assert get_session(conn, :user_token)
       assert redirected_to(conn) == ~p"/"
 
-      # Now do a logged in request to an admin page and assert on the menu
+      # Now do a logged in request and assert on the page content
       conn = get(conn, ~p"/users/settings")
       response = html_response(conn, 200)
       assert response =~ user.email
-      assert response =~ ~p"/users/settings"
-      assert response =~ ~p"/users/log-out"
     end
 
     test "logs the user in with remember me", %{conn: conn, user: user} do
@@ -84,12 +82,10 @@ defmodule SimpleshopThemeWeb.UserSessionControllerTest do
       assert get_session(conn, :user_token)
       assert redirected_to(conn) == ~p"/"
 
-      # Now do a logged in request to an admin page and assert on the menu
+      # Now do a logged in request and assert on the page content
       conn = get(conn, ~p"/users/settings")
       response = html_response(conn, 200)
       assert response =~ user.email
-      assert response =~ ~p"/users/settings"
-      assert response =~ ~p"/users/log-out"
     end
 
     test "confirms unconfirmed user", %{conn: conn, unconfirmed_user: user} do
@@ -108,12 +104,10 @@ defmodule SimpleshopThemeWeb.UserSessionControllerTest do
 
       assert Accounts.get_user!(user.id).confirmed_at
 
-      # Now do a logged in request to an admin page and assert on the menu
+      # Now do a logged in request and assert on the page content
       conn = get(conn, ~p"/users/settings")
       response = html_response(conn, 200)
       assert response =~ user.email
-      assert response =~ ~p"/users/settings"
-      assert response =~ ~p"/users/log-out"
     end
 
     test "redirects to login page when magic link is invalid", %{conn: conn} do

test/simpleshop_theme_web/live/admin/layout_test.exs

@@ -0,0 +1,91 @@
+defmodule SimpleshopThemeWeb.Admin.LayoutTest do
+  use SimpleshopThemeWeb.ConnCase, async: false
+
+  import Phoenix.LiveViewTest
+  import SimpleshopTheme.AccountsFixtures
+
+  setup do
+    user = user_fixture()
+    %{user: user}
+  end
+
+  describe "admin sidebar" do
+    setup %{conn: conn, user: user} do
+      %{conn: log_in_user(conn, user)}
+    end
+
+    test "renders sidebar nav links on admin pages", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/admin/orders")
+
+      assert has_element?(view, ~s(a[href="/admin/orders"]), "Orders")
+      assert has_element?(view, ~s(a[href="/admin/theme"]), "Theme")
+      assert has_element?(view, ~s(a[href="/admin/providers"]), "Providers")
+      assert has_element?(view, ~s(a[href="/admin/settings"]), "Settings")
+    end
+
+    test "highlights active nav link for current page", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/admin/orders")
+
+      assert has_element?(view, ~s(a.active[href="/admin/orders"]))
+      refute has_element?(view, ~s(a.active[href="/admin/settings"]))
+    end
+
+    test "highlights correct link on different pages", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/admin/settings")
+
+      assert has_element?(view, ~s(a.active[href="/admin/settings"]))
+      refute has_element?(view, ~s(a.active[href="/admin/orders"]))
+    end
+
+    test "shows user email in sidebar", %{conn: conn, user: user} do
+      {:ok, _view, html} = live(conn, ~p"/admin/orders")
+
+      assert html =~ user.email
+    end
+
+    test "shows view shop and log out links", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/admin/orders")
+
+      assert has_element?(view, ~s(a[href="/"]), "View shop")
+      assert has_element?(view, ~s(a[href="/users/log-out"]), "Log out")
+    end
+  end
+
+  describe "theme editor layout" do
+    setup %{conn: conn, user: user} do
+      %{conn: log_in_user(conn, user)}
+    end
+
+    test "does not render sidebar", %{conn: conn} do
+      {:ok, _view, html} = live(conn, ~p"/admin/theme")
+
+      refute html =~ "admin-drawer"
+    end
+
+    test "shows back link to admin", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/admin/theme")
+
+      assert has_element?(view, ~s(a[href="/admin/orders"]), "Admin")
+    end
+  end
+
+  describe "admin bar on shop pages" do
+    setup do
+      {:ok, _} = SimpleshopTheme.Settings.set_site_live(true)
+      :ok
+    end
+
+    test "shows admin link when logged in", %{conn: conn, user: user} do
+      conn = log_in_user(conn, user)
+      {:ok, _view, html} = live(conn, ~p"/")
+
+      assert html =~ ~s(href="/admin/orders")
+    end
+
+    test "does not show admin link when logged out", %{conn: conn} do
+      {:ok, _view, html} = live(conn, ~p"/")
+
+      refute html =~ ~s(href="/admin/orders")
+    end
+  end
+end

test/simpleshop_theme_web/live/auth/login_test.exs

@@ -9,7 +9,7 @@ defmodule SimpleshopThemeWeb.Auth.LoginTest do
       {:ok, _lv, html} = live(conn, ~p"/users/log-in")
 
       assert html =~ "Log in"
-      assert html =~ "Register"
+      assert html =~ "Sign up"
       assert html =~ "Log in with email"
     end
   end