fix: 优化架构

outputs/smoke-refine-sse/refine_scene_1.json

@@ -0,0 +1,6 @@
+{
+  "index": 1,
+  "image_prompt": "test",
+  "video_motion": "move",
+  "narration": "旁白（更凝练）"
+}

outputs/smoke-refine-sse/scenes.json

@@ -0,0 +1,19 @@
+{
+  "scenes": [
+    {
+      "image_prompt": "refine-sse-test，城市夜景，霓虹灯，电影感",
+      "video_motion": "缓慢推进镜头，轻微摇镜",
+      "narration": "夜色温柔落在街灯上"
+    },
+    {
+      "image_prompt": "refine-sse-test，咖啡店窗边，暖光，细雨",
+      "video_motion": "侧向平移，人物轻轻抬头",
+      "narration": "雨声里藏着一段回忆"
+    },
+    {
+      "image_prompt": "refine-sse-test，桥上远景，车流光轨，温暖",
+      "video_motion": "拉远全景，光轨流动",
+      "narration": "我们在光里学会告别"
+    }
+  ]
+}