style(plating): express order summary as a bordered table

Restyle the Order Summary card into a clean bordered table — a tinted
"Order Summary" caption bar, a divider line under every row, and an
accent-tinted Grand Total footer with a strong top rule. Uses the
existing light/dark express tokens so it renders correctly in both
colour schemes.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

fusion_plating/fusion_plating_configurator/__manifest__.py

@@ -5,7 +5,7 @@
 
 {
     'name': 'Fusion Plating — Configurator',
-    'version': '19.0.23.1.0',
+    'version': '19.0.23.2.0',
     'category': 'Manufacturing/Plating',
     'summary': 'Quotation configurator with part catalog, coating configs, and formula-based pricing engine.',
     'description': """