Add ACP support with Cursor provider (#1355)

Co-authored-by: codex <codex@users.noreply.github.com>
Co-authored-by: Julius Marminge <julius@macmini.local>
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: cursor[bot] <206951365+cursor[bot]@users.noreply.github.com>