add admin dashboard with setup checklist and stats

Dashboard at /admin shows setup progress (when not live), stat cards
(orders, revenue, products), and recent paid orders table. Replaces
the old AdminController redirect. Add Dashboard to sidebar nav as
first item, update admin bar and theme editor links to /admin.

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

test/simpleshop_theme_web/live/admin/dashboard_test.exs

@@ -0,0 +1,70 @@
+defmodule SimpleshopThemeWeb.Admin.DashboardTest do
+  use SimpleshopThemeWeb.ConnCase, async: false
+
+  import Phoenix.LiveViewTest
+  import SimpleshopTheme.AccountsFixtures
+  import SimpleshopTheme.OrdersFixtures
+
+  setup do
+    user = user_fixture()
+    %{user: user}
+  end
+
+  describe "unauthenticated" do
+    test "redirects to login", %{conn: conn} do
+      {:error, redirect} = live(conn, ~p"/admin")
+      assert {:redirect, %{to: path}} = redirect
+      assert path == ~p"/users/log-in"
+    end
+  end
+
+  describe "setup checklist" do
+    setup %{conn: conn, user: user} do
+      %{conn: log_in_user(conn, user)}
+    end
+
+    test "shows setup progress when shop is offline", %{conn: conn} do
+      {:ok, _view, html} = live(conn, ~p"/admin")
+
+      assert html =~ "Setup progress"
+      assert html =~ "Create admin account"
+      assert html =~ "Connect to Printify"
+      assert html =~ "Connect Stripe"
+      assert html =~ "Go live"
+    end
+
+    test "hides setup checklist when shop is live", %{conn: conn} do
+      {:ok, _} = SimpleshopTheme.Settings.set_site_live(true)
+      {:ok, _view, html} = live(conn, ~p"/admin")
+
+      refute html =~ "Setup progress"
+    end
+  end
+
+  describe "stats" do
+    setup %{conn: conn, user: user} do
+      %{conn: log_in_user(conn, user)}
+    end
+
+    test "shows stats cards", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/admin")
+
+      assert has_element?(view, "a[href='/admin/orders']", "Orders")
+      assert has_element?(view, "a[href='/admin/settings']", "Products")
+    end
+
+    test "shows zero state for orders", %{conn: conn} do
+      {:ok, _view, html} = live(conn, ~p"/admin")
+
+      assert html =~ "No orders yet"
+    end
+
+    test "shows recent orders when they exist", %{conn: conn} do
+      order = order_fixture(%{payment_status: "paid"})
+      {:ok, _view, html} = live(conn, ~p"/admin")
+
+      assert html =~ order.order_number
+      assert html =~ "Recent orders"
+    end
+  end
+end

test/simpleshop_theme_web/live/admin/layout_test.exs

@@ -17,6 +17,7 @@ defmodule SimpleshopThemeWeb.Admin.LayoutTest do
     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"]), "Dashboard")
       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/settings"]), "Settings")
@@ -29,6 +30,13 @@ defmodule SimpleshopThemeWeb.Admin.LayoutTest do
       refute has_element?(view, ~s(a.active[href="/admin/settings"]))
     end
 
+    test "highlights dashboard on dashboard page", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/admin")
+
+      assert has_element?(view, ~s(a.active[href="/admin"]))
+      refute has_element?(view, ~s(a.active[href="/admin/orders"]))
+    end
+
     test "highlights correct link on different pages", %{conn: conn} do
       {:ok, view, _html} = live(conn, ~p"/admin/settings")
 
@@ -64,7 +72,7 @@ defmodule SimpleshopThemeWeb.Admin.LayoutTest do
     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")
+      assert has_element?(view, ~s(a[href="/admin"]), "Admin")
     end
   end
 
@@ -78,13 +86,13 @@ defmodule SimpleshopThemeWeb.Admin.LayoutTest do
       conn = log_in_user(conn, user)
       {:ok, _view, html} = live(conn, ~p"/")
 
-      assert html =~ ~s(href="/admin/orders")
+      assert html =~ ~s(href="/admin")
     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")
+      refute html =~ ~s(href="/admin")
     end
   end
 end