pyte 0.8.2 doesn't handle DCS string sequences (ESC P ... ST). When
nano/ncurses sends DECRQSS queries, pyte consumed the introducer but
rendered the payload as visible text. Added regex pre-filter to strip
DCS/APC/PM/SOS sequences before feeding data to pyte.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>