POST /api/v1/admin/presence-overrides/consequence answers {removed: N},
the number of a child's upcoming open quest instances saving a presence
override would remove, computed before anything is saved.
The materialize walk's generation is extracted into a pure
_generation_preview helper that materialize() now writes through, and
count_removed_by_override runs that same preview with and without the
proposed override, excluding instances that already have a completion
event (D-005). The route is a thin adapter over the new
presence_management.preview_presence_override_consequence.
Task 7616e3eb-da8b-42cc-8fc7-bbfac2074662
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
overseerandClaude Opus 5.5
b51310eb74