Review of the atomic Apply found freshness gaps:
- A drawing's cutoff classification decides lead, material, obstacle and
dependency treatment but was not captured; changing it after planning
still applied the old proposal.
- Part and plate cutting settings were compared by reference only, so an
in-place edit after capture applied (and a regenerated part overwrote
it); plate settings were not compared at all. Settings are now captured
as an exact public-state fingerprint.
- A live program whose instruction list was set to null made Apply throw
instead of returning Stale, and a respelled key in a case-insensitive
binding dictionary compared equal.
Caller-confirmed planning settings remain planning input: editing them
after capture does not stale the plan and does not leak into the result.