5c0396d0c1
Adds the admin Workflows surface (top-level nav, gated by the workflows flag + workflows.view): a list page (enable toggle, delete, new), a pending-approvals inbox (confirm/deny), and a React Flow (@xyflow/react) canvas editor — palette to add nodes, drag handle→handle to connect (branch/gate/loop expose yes-no / confirm-deny / loop-exit handles), a side-panel JSON config editor, and save (writes a new version). Routes + sidebar entry + workflows.service. Build + tsc clean. NOTE: the workflow page strings render via inline English fallbacks; DE translations for the workflows.* block are still pending native review.