add fresh install redirect and admin provider tests

Fresh installs now redirect to /users/register instead of showing the
demo shop. Post-login redirect goes to /admin dashboard (with setup
checklist) instead of /admin/settings. Added 16 provider tests covering
index (list, delete, sync) and form (new, edit, test connection).

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

test/simpleshop_theme_web/live/shop/cart_test.exs

@@ -2,9 +2,16 @@ defmodule SimpleshopThemeWeb.Shop.CartTest do
   use SimpleshopThemeWeb.ConnCase, async: false
 
   import Phoenix.LiveViewTest
+  import SimpleshopTheme.AccountsFixtures
 
   alias SimpleshopTheme.ProductsFixtures
 
+  setup do
+    user_fixture()
+    {:ok, _} = SimpleshopTheme.Settings.set_site_live(true)
+    :ok
+  end
+
   defp create_cart_with_product(_context) do
     product = ProductsFixtures.complete_product_fixture(%{title: "Test Art Print"})
     variant = List.first(product.variants)

test/simpleshop_theme_web/live/shop/collection_test.exs

@@ -2,9 +2,16 @@ defmodule SimpleshopThemeWeb.Shop.CollectionTest do
   use SimpleshopThemeWeb.ConnCase, async: false
 
   import Phoenix.LiveViewTest
+  import SimpleshopTheme.AccountsFixtures
 
   alias SimpleshopTheme.Theme.PreviewData
 
+  setup do
+    user_fixture()
+    {:ok, _} = SimpleshopTheme.Settings.set_site_live(true)
+    :ok
+  end
+
   describe "Collection page" do
     test "renders collection page for /collections/all", %{conn: conn} do
       {:ok, _view, html} = live(conn, ~p"/collections/all")

test/simpleshop_theme_web/live/shop/coming_soon_test.exs

@@ -51,11 +51,9 @@ defmodule SimpleshopThemeWeb.Shop.ComingSoonTest do
       assert html =~ "Shop the collection"
     end
 
-    test "allows everyone through on fresh install (no admin)", %{conn: conn} do
-      # No admin created — fresh install shows the demo shop
-      {:ok, _view, html} = live(conn, ~p"/")
-
-      assert html =~ "Shop the collection"
+    test "redirects to registration on fresh install (no admin)", %{conn: conn} do
+      # No admin created — redirect to registration
+      assert {:error, {:redirect, %{to: "/users/register"}}} = live(conn, ~p"/")
     end
 
     test "gates all public shop routes", %{conn: conn} do

test/simpleshop_theme_web/live/shop/content_test.exs

@@ -2,6 +2,13 @@ defmodule SimpleshopThemeWeb.Shop.ContentTest do
   use SimpleshopThemeWeb.ConnCase, async: false
 
   import Phoenix.LiveViewTest
+  import SimpleshopTheme.AccountsFixtures
+
+  setup do
+    user_fixture()
+    {:ok, _} = SimpleshopTheme.Settings.set_site_live(true)
+    :ok
+  end
 
   describe "About page" do
     test "renders about page", %{conn: conn} do

test/simpleshop_theme_web/live/shop/home_test.exs

@@ -2,9 +2,16 @@ defmodule SimpleshopThemeWeb.Shop.HomeTest do
   use SimpleshopThemeWeb.ConnCase, async: false
 
   import Phoenix.LiveViewTest
+  import SimpleshopTheme.AccountsFixtures
 
   alias SimpleshopTheme.Theme.PreviewData
 
+  setup do
+    user_fixture()
+    {:ok, _} = SimpleshopTheme.Settings.set_site_live(true)
+    :ok
+  end
+
   describe "Home page" do
     test "renders the home page", %{conn: conn} do
       {:ok, _view, html} = live(conn, ~p"/")

test/simpleshop_theme_web/live/shop/product_show_test.exs

@@ -2,9 +2,16 @@ defmodule SimpleshopThemeWeb.Shop.ProductShowTest do
   use SimpleshopThemeWeb.ConnCase, async: false
 
   import Phoenix.LiveViewTest
+  import SimpleshopTheme.AccountsFixtures
 
   alias SimpleshopTheme.Theme.PreviewData
 
+  setup do
+    user_fixture()
+    {:ok, _} = SimpleshopTheme.Settings.set_site_live(true)
+    :ok
+  end
+
   describe "Product detail page" do
     test "renders product page with product name", %{conn: conn} do
       product = List.first(PreviewData.products())