BOLT-1268 — hide broken affordances on pending events (Edit on details, Cancel on list)

Quick prod hygiene fix while P1.5/P2 ship the real flows. Hide rather than disable. 1) apps/dashboard/packs/programs/routes/(programs)/events/[id]/page.tsx line ~1060: remove `pending` from the Edit Event button gating so Edit only shows for `draft`. 2) apps/dashboard/packs/programs/routes/(programs)/events/page.tsx line ~603: remove `pending` from the row-action Cancel Event gating so the action only shows for `draft`. Will re-introduce pending support once P1.5 makes the backend actually cancel pending events.