Mark the workstream done in the continuation handoff: orca translated (A2),
active-app promoted to an architecture chapter (B1), historical DESIGN docs
moved to decisions/ (B2), runtime-artifact shortcut rerouted (B3). Guards green
at close (arts:check 0/0/22, docs:check 0 err).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
dev