Bild status line redraw erases too many lines on completion, sometimes deleting another build line or the shell prompt. Ensure completion redraw only clears the intended line(s) for each build and does not delete other output.
Adjusted line redraw to avoid double cursor restore; now moves down from the drawn line to bottom of reserved area to prevent clearing another status line.
Adjusted line redraw to return cursor to bottom of the status area after each update and simplified cleanup newline, so status updates no longer leave the cursor mid-area or overwrite other lines.