fix: fix uploaded file time error #680 (#690)

feat: support DeepSeek (#667)

fix: filter knowledge list by keywords and clear the selected file list after the file is uploaded successfully and add ellipsis pattern to chunk list (#628)

feat: translate FileManager #345 (#558)

feat: add file icon to table of FileManager #345 (#543)

feat: upload file in FileManager #345 (#529)

feat: create folder #345 (#518)

fix: cannot save the system model setting #468 (#508)