add setup onboarding page, dashboard launch checklist, provider registry

- new /setup page with three-section onboarding (account, provider, payments)
- dashboard launch checklist with progress bar, go-live, dismiss
- provider registry on Provider module (single source of truth for metadata)
- payments registry for Stripe
- setup context made provider-agnostic (provider_connected, theme_customised, etc.)
- admin provider pages now fully registry-driven (no hardcoded provider names)
- auth flow: fresh installs redirect to /setup, signed_in_path respects setup state
- removed old /admin/setup wizard
- 840 tests, 0 failures

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

test/berrypod_web/live/setup/onboarding_test.exs

@@ -0,0 +1,116 @@
+defmodule BerrypodWeb.Setup.OnboardingTest do
+  use BerrypodWeb.ConnCase, async: false
+
+  import Phoenix.LiveViewTest
+  import Berrypod.AccountsFixtures
+
+  alias Berrypod.{Products, Settings}
+
+  describe "access rules" do
+    test "accessible on fresh install (no admin)", %{conn: conn} do
+      {:ok, _view, html} = live(conn, ~p"/setup")
+      assert html =~ "Set up your shop"
+      assert html =~ "Create admin account"
+    end
+
+    test "redirects to /admin when setup is complete", %{conn: conn} do
+      user = user_fixture()
+      conn = log_in_user(conn, user)
+
+      {:ok, _} =
+        Products.create_provider_connection(%{
+          name: "Test",
+          provider_type: "printify",
+          api_key: "test_key"
+        })
+
+      {:ok, _} = Settings.put_secret("stripe_api_key", "sk_test_123")
+
+      {:error, redirect} = live(conn, ~p"/setup")
+      assert {:live_redirect, %{to: "/admin"}} = redirect
+    end
+
+    test "redirects to login when admin exists but not logged in", %{conn: conn} do
+      _user = user_fixture()
+
+      {:error, redirect} = live(conn, ~p"/setup")
+      assert {:live_redirect, %{to: "/users/log-in"}} = redirect
+    end
+
+    test "redirects to / when site is already live", %{conn: conn} do
+      user = user_fixture()
+      conn = log_in_user(conn, user)
+
+      {:ok, _} =
+        Products.create_provider_connection(%{
+          name: "Test",
+          provider_type: "printify",
+          api_key: "test_key"
+        })
+
+      {:ok, _} = Settings.put_secret("stripe_api_key", "sk_test_123")
+      {:ok, _} = Settings.set_site_live(true)
+
+      {:error, redirect} = live(conn, ~p"/setup")
+      assert {:live_redirect, %{to: "/"}} = redirect
+    end
+  end
+
+  describe "sections" do
+    test "shows all three sections on fresh install", %{conn: conn} do
+      {:ok, _view, html} = live(conn, ~p"/setup")
+
+      assert html =~ "Create admin account"
+      assert html =~ "Connect a print provider"
+      assert html =~ "Connect payments"
+    end
+
+    test "shows provider cards", %{conn: conn} do
+      {:ok, _view, html} = live(conn, ~p"/setup")
+
+      assert html =~ "Printify"
+      assert html =~ "Printful"
+      assert html =~ "Gelato"
+      assert html =~ "Coming soon"
+    end
+
+    test "selecting a provider shows the API key form", %{conn: conn} do
+      {:ok, view, _html} = live(conn, ~p"/setup")
+
+      html =
+        view
+        |> element(~s(button[phx-value-type="printify"]))
+        |> render_click()
+
+      assert html =~ "API token"
+      assert html =~ "Printify"
+    end
+  end
+
+  describe "stripe section" do
+    test "shows stripe form", %{conn: conn} do
+      {:ok, _view, html} = live(conn, ~p"/setup")
+
+      assert html =~ "Secret key"
+      assert html =~ "Connect Stripe"
+    end
+  end
+
+  describe "completion" do
+    setup :register_and_log_in_user
+
+    test "redirects to dashboard when all three steps done", %{conn: conn} do
+      {:ok, _} =
+        Products.create_provider_connection(%{
+          name: "Test",
+          provider_type: "printify",
+          api_key: "test_key"
+        })
+
+      {:ok, _} = Settings.put_secret("stripe_api_key", "sk_test_123")
+
+      {:error, redirect} = live(conn, ~p"/setup")
+      assert {:live_redirect, %{to: "/admin"}} = redirect
+    end
+  end
+end