feat: add Products listing page to public storefront

- Create ShopLive.Products module and template
- Add /products route to public shop live session
- Shows product grid with category filters and sort dropdown
- Displays all 16 preview products with categories

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/simpleshop_theme_web/live/shop_live/products.ex

@@ -0,0 +1,40 @@
+defmodule SimpleshopThemeWeb.ShopLive.Products do
+  use SimpleshopThemeWeb, :live_view
+
+  alias SimpleshopTheme.Settings
+  alias SimpleshopTheme.Media
+  alias SimpleshopTheme.Theme.{CSSCache, CSSGenerator, PreviewData}
+
+  @impl true
+  def mount(_params, _session, socket) do
+    theme_settings = Settings.get_theme_settings()
+
+    generated_css =
+      case CSSCache.get() do
+        {:ok, css} -> css
+        :miss ->
+          css = CSSGenerator.generate(theme_settings)
+          CSSCache.put(css)
+          css
+      end
+
+    logo_image = Media.get_logo()
+    header_image = Media.get_header()
+
+    preview_data = %{
+      products: PreviewData.products(),
+      categories: PreviewData.categories()
+    }
+
+    socket =
+      socket
+      |> assign(:page_title, "Products")
+      |> assign(:theme_settings, theme_settings)
+      |> assign(:generated_css, generated_css)
+      |> assign(:logo_image, logo_image)
+      |> assign(:header_image, header_image)
+      |> assign(:preview_data, preview_data)
+
+    {:ok, socket}
+  end
+end

lib/simpleshop_theme_web/live/shop_live/products.html.heex

@@ -0,0 +1,35 @@
+<div class="shop-container min-h-screen" style="background-color: var(--t-surface-base); font-family: var(--t-font-body); color: var(--t-text-primary);">
+  <.skip_link />
+
+  <%= if @theme_settings.announcement_bar do %>
+    <.announcement_bar theme_settings={@theme_settings} />
+  <% end %>
+
+  <.shop_header theme_settings={@theme_settings} logo_image={@logo_image} header_image={@header_image} active_page="collection" mode={:shop} cart_count={0} />
+
+  <main id="main-content">
+    <.collection_header title="All Products" product_count={length(@preview_data.products)} />
+
+    <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+      <.filter_bar categories={@preview_data.categories} />
+
+      <.product_grid theme_settings={@theme_settings}>
+        <%= for product <- @preview_data.products do %>
+          <.product_card
+            product={product}
+            theme_settings={@theme_settings}
+            mode={:shop}
+            variant={:default}
+            show_category={true}
+          />
+        <% end %>
+      </.product_grid>
+    </div>
+  </main>
+
+  <.shop_footer theme_settings={@theme_settings} mode={:shop} />
+
+  <.cart_drawer cart_items={[]} subtotal="£0.00" mode={:shop} />
+
+  <.search_modal hint_text={~s(Try searching for "mountain", "forest", or "ocean")} />
+</div>

lib/simpleshop_theme_web/router.ex

@@ -29,6 +29,7 @@ defmodule SimpleshopThemeWeb.Router do
       live "/", ShopLive.Home, :index
       live "/about", ShopLive.About, :index
       live "/contact", ShopLive.Contact, :index
+      live "/products", ShopLive.Products, :index
     end
   end