Four review passes with fixes between them (flare-edge's flow-framework
review, 2026-09-09). qmp.py: drive() split out of a 330-line dispatcher,
every verb guarded so a raising verb records a fatal row instead of ending
the run, the shot path sanitised, the rs485 and wait verbs judged through
shared helpers; imgtools.py: a bench subcommand for phash/structural
timings and a colour probe that samples instead of scanning the frame;
ui-drive.sh: the boot poll no longer walks every pixel per tick and the
simulator's control socket path is passed as one word. Offline tests: 8.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N3G6m9Aw5RyVY4ZowtKzEj
