lomirus

### 修改后的完整 JSON：

```json
{"features":{"pow_prefetch":true,"pow_prefetch_count":1,"model_configs":[{"model_type":"default","name":"快速模式","description":"适合日常对话，即时响应","welcome_msg":"使用快速模式开始对话","is_default":true,"enabled":true,"switchable":true,"show_model_name_in_session":false,"input_character_limit":2621440,"think_feature":{},"search_feature":{},"regenerate_options":null,"file_feature":{"token_limit":61440,"token_limit_with_thinking":61440,"max_input_file_count":50,"max_upload_file_size":104857600,"support_file_exts":["pdf","png","jpg","jpeg","svg","svgz","bmp","gif","webp","ico","xbm","dib","pjp","tif","pjpeg","avif","apng","tiff","jfif","txt","md","csv","tsv","html","json","log","dot","go","h","c","cpp","cxx","cc","cs","java","js","css","jsp","php","py","py3","asp","yaml","yml","ini","conf","ts","tsx","doc","docx","ppt","pptx","xls","xlsx","abap","asc","ash","ampl","mod","g4","apib","apl","dyalog","asax","ascx","ashx","asmx","aspx","axd","dats","hats","sats","as","adb","ada","ads","agda","als","apacheconf"