Surface add-on prices and add an add-ons total sensor

Add-on rows already carried quantity, unit and extended price; only the name
was exposed. The attribute now renders the full line and a new monetary
sensor reports the add-ons subtotal separately from the box.

The fixture totals were copied from a seven-add-on cart while the fixture
itself had one, so they are now self-consistent and a test asserts that
add-ons plus box price equals the portal's subtotal.

examples/dashboard-view.yaml

@@ -4,7 +4,7 @@
 # next delivery, what is in the box, and the order that can still be changed.
 #
 # To use it, open your dashboard, choose "Edit dashboard" -> "Raw configuration
-# editor", and paste this under `views:`. It only needs the five sensors the
+# editor", and paste this under `views:`. It only needs the six sensors the
 # integration creates.
 
 type: sections
@@ -40,6 +40,11 @@ sections:
     name: Order total
     icon: mdi:cash-multiple
     color: teal
+  - type: tile
+    entity: sensor.fresh_harvest_next_delivery_add_ons
+    name: Add-ons
+    icon: mdi:cart-plus
+    color: purple
   - type: tile
     entity: sensor.fresh_harvest_next_delivery_items
     name: Items
@@ -55,8 +60,10 @@ sections:
     content: |-
       {%- set produce = state_attr('sensor.fresh_harvest_next_delivery_items', 'produce') or [] -%}
       {%- set addons = state_attr('sensor.fresh_harvest_next_delivery_items', 'add_ons') or [] -%}
+      {%- set addons_total = state_attr('sensor.fresh_harvest_next_delivery_items', 'add_ons_total') -%}
+      {%- set box_price = state_attr('sensor.fresh_harvest_next_delivery_items', 'box_price') -%}
       {%- if produce -%}
-      **In the box**
+      **In the box**{% if box_price %} · ${{ '%.2f' | format(box_price) }}{% endif %}
       {% for i in produce %}
       - {{ i }}
       {%- endfor %}
@@ -64,7 +71,7 @@ sections:
       _Box contents not assigned yet._
       {%- endif %}
       {% if addons %}
-      **Add-ons**
+      **Add-ons**{% if addons_total %} · ${{ '%.2f' | format(addons_total) }}{% endif %}
       {% for a in addons %}
       - {{ a }}
       {%- endfor %}