feat: full-screen StoryGallery with flow layout, startAtScene engine method, clickable flow nodes

src/composables/useGameEngine.ts

@@ -195,6 +195,13 @@ export function useGameEngine(videoEls: () => [HTMLVideoElement | null, HTMLVide
     engine.startChapter(chapterId)
   }
 
+  function startAtScene(chapterId: string, sceneId: string) {
+    const [elA, elB] = videoEls()
+    if (elA && elB) engine.videoManager.attach(elA, elB)
+    store.setGameEnded(false)
+    engine.startAtScene(chapterId, sceneId)
+  }
+
   function skipScene() {
     engine.skipCurrentScene()
   }
@@ -274,6 +281,7 @@ export function useGameEngine(videoEls: () => [HTMLVideoElement | null, HTMLVide
     makeChoice,
     clickHotspot,
     startChapter,
+    startAtScene,
     skipScene,
     setSpeed,
     getSpeed,