feat(jump-hop): optimize generated assets and runtime background

src/components/unified-creation/workspaces/JumpHopCreationWorkspace.test.tsx

@@ -60,12 +60,12 @@ test('jump hop workspace submits theme payload after required field is filled',
       templateId: 'jump-hop',
       themeText: '云朵跳台',
       workTitle: '云朵跳台跳一跳',
-      workDescription: '云朵跳台主题的俯视角平台跳跃作品',
+      workDescription: '云朵跳台主题的俯视角跳跃作品',
       themeTags: ['云朵跳台', '跳一跳', '休闲'],
       difficulty: 'standard',
       stylePreset: 'minimal-blocks',
       characterPrompt: '内置默认 3D 角色',
-      tilePrompt: '云朵跳台主题的俯视角清爽游戏化立体感平台素材',
+      tilePrompt: '云朵跳台主题的正面30度视角主题物体图集，物体本身作为跳跃落点',
       endMoodPrompt: null,
     });
   });