10 commits in this branch landed the data-safety bugs (C2, C11), the
worst parallel-change problems (C1/C3/C4/C6/C7), and 5 of the 9 HIGH
audit findings. The remainder splits cleanly into four follow-up
sessions: a frontend sprint (C8/C9/C10/H6/H7/H8/M7-M11/L1), a Device
redesign (H4), a BaseTargetProcessor ABC (C5/H5/M1/M2/L2), and polish
(M3/M6/M12/L3-L5).
This file documents what's left, the recommended ordering, and the
three registry patterns already in the codebase that new contributors
should reach for instead of writing fresh if/elif chains.
