Add SudLogTask: starts a fresh in-memory buffer the moment a run actually starts (Sud.state leaves IDLE/DONE) and writes it out whole the moment it ends (DONE, or aborted via Stop) - log_<date>T<time>_<sud-name>.json holds the same six signals the GUI's Automatic tab plots live (temp/rate ist+soll, power set+eff) with per-sample timestamps; forecast_<date>T<time>_<sud-name>.json holds the final, most-corrected forecast curve from the same run, sharing the run's date-time token so the two pair up. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DkkuG48uHFCGKe6dPSERFk