add data-driven navigation with admin editor

Replace hardcoded header, footer and mobile nav with settings-driven
loops. Nav items stored as JSON via Settings, loaded in ThemeHook with
sensible defaults. New admin navigation editor at /admin/navigation
for add/remove/reorder/save/reset. Mobile bottom nav also driven from
header nav items with icon mapping by slug.

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

lib/berrypod_web/components/shop_components/layout.ex

@@ -51,7 +51,8 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   @layout_keys ~w(theme_settings logo_image header_image mode cart_items cart_count
     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)a
+    country_code available_countries editing editor_current_path editor_sidebar_open
+    header_nav_items footer_nav_items)a
 
   @doc """
   Extracts the assigns relevant to `shop_layout` from a full assigns map.
@@ -95,6 +96,8 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   attr :shipping_estimate, :integer, default: nil
   attr :country_code, :string, default: "GB"
   attr :available_countries, :list, default: []
+  attr :header_nav_items, :list, default: []
+  attr :footer_nav_items, :list, default: []
 
   slot :inner_block, required: true
 
@@ -123,6 +126,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
         editing={@editing}
         editor_current_path={@editor_current_path}
         editor_sidebar_open={@editor_sidebar_open}
+        header_nav_items={@header_nav_items}
       />
 
       {render_slot(@inner_block)}
@@ -131,6 +135,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
         theme_settings={@theme_settings}
         mode={@mode}
         categories={assigns[:categories] || []}
+        footer_nav_items={@footer_nav_items}
       />
 
       <.cart_drawer
@@ -153,7 +158,12 @@ defmodule BerrypodWeb.ShopComponents.Layout do
         search_open={@search_open}
       />
 
-      <.mobile_bottom_nav :if={!@error_page} active_page={@active_page} mode={@mode} />
+      <.mobile_bottom_nav
+        :if={!@error_page}
+        active_page={@active_page}
+        mode={@mode}
+        items={@header_nav_items}
+      />
     </div>
     """
   end
@@ -180,6 +190,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   attr :active_page, :string, required: true
   attr :mode, :atom, default: :live
   attr :cart_count, :integer, default: 0
+  attr :items, :list, default: []
 
   def mobile_bottom_nav(assigns) do
     ~H"""
@@ -189,36 +200,13 @@ defmodule BerrypodWeb.ShopComponents.Layout do
     >
       <ul>
         <.mobile_nav_item
-          icon={:home}
-          label="Home"
-          page="home"
-          href="/"
-          active_page={@active_page}
-          mode={@mode}
-        />
-        <.mobile_nav_item
-          icon={:shop}
-          label="Shop"
-          page="collection"
-          href="/collections/all"
-          active_page={@active_page}
-          active_pages={["collection", "pdp"]}
-          mode={@mode}
-        />
-        <.mobile_nav_item
-          icon={:about}
-          label="About"
-          page="about"
-          href="/about"
-          active_page={@active_page}
-          mode={@mode}
-        />
-        <.mobile_nav_item
-          icon={:contact}
-          label="Contact"
-          page="contact"
-          href="/contact"
+          :for={item <- @items}
+          icon={mobile_icon(item["slug"])}
+          label={item["label"]}
+          page={item["slug"] || ""}
+          href={item["href"]}
           active_page={@active_page}
+          active_pages={item["active_slugs"]}
           mode={@mode}
         />
       </ul>
@@ -266,6 +254,12 @@ defmodule BerrypodWeb.ShopComponents.Layout do
     """
   end
 
+  defp mobile_icon("home"), do: :home
+  defp mobile_icon("collection"), do: :shop
+  defp mobile_icon("about"), do: :about
+  defp mobile_icon("contact"), do: :contact
+  defp mobile_icon(_), do: :page
+
   defp nav_icon(%{icon: :home} = assigns) do
     ~H"""
     <svg
@@ -341,6 +335,24 @@ defmodule BerrypodWeb.ShopComponents.Layout do
     """
   end
 
+  defp nav_icon(%{icon: :page} = assigns) do
+    ~H"""
+    <svg
+      width="24"
+      height="24"
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      stroke-width="2"
+      stroke-linecap="round"
+      stroke-linejoin="round"
+    >
+      <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"></path>
+      <polyline points="14 2 14 8 20 8"></polyline>
+    </svg>
+    """
+  end
+
   @doc """
   Renders the search modal overlay with live search results.
 
@@ -509,6 +521,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   attr :theme_settings, :map, required: true
   attr :mode, :atom, default: :live
   attr :categories, :list, default: []
+  attr :footer_nav_items, :list, default: []
 
   def shop_footer(assigns) do
     assigns = assign(assigns, :current_year, Date.utc_today().year)
@@ -575,81 +588,22 @@ defmodule BerrypodWeb.ShopComponents.Layout do
                 Help
               </h4>
               <ul class="footer-nav">
-                <%= if @mode == :preview do %>
-                  <li>
+                <li :for={item <- @footer_nav_items}>
+                  <%= if @mode == :preview do %>
                     <a
                       href="#"
                       phx-click="change_preview_page"
-                      phx-value-page="delivery"
+                      phx-value-page={item["slug"]}
                       class="footer-link"
                     >
-                      Delivery & returns
+                      {item["label"]}
                     </a>
-                  </li>
-                  <li>
-                    <a
-                      href="#"
-                      phx-click="change_preview_page"
-                      phx-value-page="privacy"
-                      class="footer-link"
-                    >
-                      Privacy policy
-                    </a>
-                  </li>
-                  <li>
-                    <a
-                      href="#"
-                      phx-click="change_preview_page"
-                      phx-value-page="terms"
-                      class="footer-link"
-                    >
-                      Terms of service
-                    </a>
-                  </li>
-                  <li>
-                    <a
-                      href="#"
-                      phx-click="change_preview_page"
-                      phx-value-page="contact"
-                      class="footer-link"
-                    >
-                      Contact
-                    </a>
-                  </li>
-                <% else %>
-                  <li>
-                    <.link
-                      navigate="/delivery"
-                      class="footer-link"
-                    >
-                      Delivery & returns
+                  <% else %>
+                    <.link navigate={item["href"]} class="footer-link">
+                      {item["label"]}
                     </.link>
-                  </li>
-                  <li>
-                    <.link
-                      navigate="/privacy"
-                      class="footer-link"
-                    >
-                      Privacy policy
-                    </.link>
-                  </li>
-                  <li>
-                    <.link
-                      navigate="/terms"
-                      class="footer-link"
-                    >
-                      Terms of service
-                    </.link>
-                  </li>
-                  <li>
-                    <.link
-                      navigate="/contact"
-                      class="footer-link"
-                    >
-                      Contact
-                    </.link>
-                  </li>
-                <% end %>
+                  <% end %>
+                </li>
               </ul>
             </div>
           </div>
@@ -694,6 +648,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   attr :editing, :boolean, default: false
   attr :editor_current_path, :string, default: nil
   attr :editor_sidebar_open, :boolean, default: true
+  attr :header_nav_items, :list, default: []
 
   def shop_header(assigns) do
     ~H"""
@@ -712,29 +667,15 @@ defmodule BerrypodWeb.ShopComponents.Layout do
       </div>
 
       <nav class="shop-nav">
-        <%= if @mode == :preview do %>
-          <.nav_item label="Home" page="home" active_page={@active_page} mode={:preview} />
-          <.nav_item
-            label="Shop"
-            page="collection"
-            active_page={@active_page}
-            mode={:preview}
-            active_pages={["collection", "pdp"]}
-          />
-          <.nav_item label="About" page="about" active_page={@active_page} mode={:preview} />
-          <.nav_item label="Contact" page="contact" active_page={@active_page} mode={:preview} />
-        <% else %>
-          <.nav_item label="Home" href="/" active_page={@active_page} page="home" />
-          <.nav_item
-            label="Shop"
-            href="/collections/all"
-            active_page={@active_page}
-            page="collection"
-            active_pages={["collection", "pdp"]}
-          />
-          <.nav_item label="About" href="/about" active_page={@active_page} page="about" />
-          <.nav_item label="Contact" href="/contact" active_page={@active_page} page="contact" />
-        <% end %>
+        <.nav_item
+          :for={item <- @header_nav_items}
+          label={item["label"]}
+          href={item["href"]}
+          page={item["slug"] || ""}
+          active_page={@active_page}
+          active_pages={item["active_slugs"]}
+          mode={@mode}
+        />
       </nav>
 
       <div class="shop-actions">