add newsletter and email campaigns

Subscribers with double opt-in confirmation, campaign composer with
draft/scheduled/sent lifecycle, admin dashboard with overview stats,
CSV export, and shop signup form wired into page builder blocks.

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

lib/berrypod_web/components/shop_components/layout.ex

@@ -52,7 +52,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
     cart_subtotal cart_total cart_drawer_open cart_status active_page error_page is_admin
     search_query search_results search_open categories shipping_estimate
     country_code available_countries editing editor_current_path editor_sidebar_open
-    header_nav_items footer_nav_items)a
+    header_nav_items footer_nav_items newsletter_enabled newsletter_state)a
 
   @doc """
   Extracts the assigns relevant to `shop_layout` from a full assigns map.
@@ -98,6 +98,8 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   attr :available_countries, :list, default: []
   attr :header_nav_items, :list, default: []
   attr :footer_nav_items, :list, default: []
+  attr :newsletter_enabled, :boolean, default: false
+  attr :newsletter_state, :atom, default: :idle
 
   slot :inner_block, required: true
 
@@ -136,6 +138,8 @@ defmodule BerrypodWeb.ShopComponents.Layout do
         mode={@mode}
         categories={assigns[:categories] || []}
         footer_nav_items={@footer_nav_items}
+        newsletter_enabled={@newsletter_enabled}
+        newsletter_state={@newsletter_state}
       />
 
       <.cart_drawer
@@ -522,6 +526,8 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   attr :mode, :atom, default: :live
   attr :categories, :list, default: []
   attr :footer_nav_items, :list, default: []
+  attr :newsletter_enabled, :boolean, default: false
+  attr :newsletter_state, :atom, default: :idle
 
   def shop_footer(assigns) do
     assigns = assign(assigns, :current_year, Date.utc_today().year)
@@ -530,7 +536,11 @@ defmodule BerrypodWeb.ShopComponents.Layout do
     <footer class="shop-footer">
       <div class="shop-footer-inner">
         <div class="footer-grid">
-          <.newsletter_card variant={:inline} />
+          <.newsletter_card
+            variant={:inline}
+            newsletter_enabled={@newsletter_enabled}
+            newsletter_state={@newsletter_state}
+          />
 
           <div class="footer-links">
             <div>