play page : replace backgroundColor with backgroundImage, remove curves. closes #37

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

site/blueprints/pages/game.yml

@@ -79,13 +79,10 @@ tabs:
             uploads:
               template: image
             help: Image affichée à droite de la description (sur ordinateur uniquement)
-          backgroundColor:
-            label: Couleur d'arrière plan
-            type: code-editor
-            language: css
-            size: custom-size
-            default: radial-gradient(circle at 20% 80%, rgb(240, 154, 110) 0%, rgb(233, 101, 122) 100%)
-            translate: false
-            help: À remplir avec la valeur de la propriété CSS `background-color` souhaitée
+          backgroundImage:
+            label: Image d'arrière-plan
+            type: files
+            multiple: false
+            layout: cards
 
   seo: seo/page

site/templates/play.json.php

@@ -10,7 +10,7 @@ $specificData = [
       'thumbnail'        => $game->thumbnail()->toFile()?->url(),
       'thumbnailSrcset'  => $game->thumbnail()->toFile()?->srcset('thumbnail'),
       'thumbnailWebp'    => $game->thumbnail()->toFile()?->srcset('thumbnail-webp'),
-      'backgroundColor'  => $game->backgroundColor()->value() ?: null,
+      'backgroundImage'  => $game->backgroundImage()->toFile()?->url(),
       'preview'          => $game->preview()->toFile()?->url(),
       'playLink'         => $game->playLink()->value() ?: null,
     ];