feat(#173): ajouter la teinte aqua aux cartes (V + H)

Enums, mappings formulaires / bulles / enfants, assets inclus.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/lib/models/card_assets.dart

@@ -7,7 +7,8 @@ enum CardColorVertical {
   lime('assets/cards/card_lime.png'),
   lavender('assets/cards/card_lavender.png'),
   green('assets/cards/card_green.png'),
-  blue('assets/cards/card_blue.png');
+  blue('assets/cards/card_blue.png'),
+  aqua('assets/cards/card_aqua.png');
 
   final String path;
   const CardColorVertical(this.path);
@@ -20,7 +21,8 @@ enum CardColorHorizontal {
   lime('assets/cards/card_lime_h.png'),
   lavender('assets/cards/card_lavender_h.png'),
   green('assets/cards/card_green_h.png'),
-  blue('assets/cards/card_blue_h.png');
+  blue('assets/cards/card_blue_h.png'),
+  aqua('assets/cards/card_aqua_h.png');
 
   final String path;
   const CardColorHorizontal(this.path);

frontend/lib/models/carte_bulle.dart

@@ -155,6 +155,8 @@ class CarteBulle {
         return CardColorHorizontal.green.path;
       case 'blue':
         return CardColorHorizontal.blue.path;
+      case 'aqua':
+        return CardColorHorizontal.aqua.path;
       default:
         return CardColorHorizontal.peach.path;
     }