美化sss.json，前端作业说明高度调整

server.py

@@ -294,11 +294,10 @@ def upload_sss_copilot():
         else:
             return {"exists": False}
     else:
-        print(request.files)
         data = request.files["copilot"]
-        data.save(copilot)
-        data.seek(0)
         data = json.load(data)
+        with copilot.open("w", encoding="utf-8") as f:
+            json.dump(data, f, ensure_ascii=False, indent=2)
     return {
         "exists": True,
         "title": data["doc"]["title"],