Estimate: 80m · Type: code · Depends on: 2.8.8, 2.8.1
The shared host surface the 2.8.4 Delete row slots into — assumed by the 2.8.1 design ("the shipped Popover actions menu … identical on detail/list/board") but ABSENT: the detail header has only an Edit link, board cards are drag-only, issues-list rows have no ⋯ menu, and Archive is surfaced NOWHERE (archiveWorkItem service has zero route/UI callers; archive reaches the web app only via the in-flight MCP tool 7.8.14 / MOTIR-790).
Build the shared work-item ⋯ actions menu (Popover: Edit details → existing edit route · Copy link → clipboard · — · Archive) and mount it on the detail header, the issues-list row, and the board card. Surface Archive: add a thin POST /api/work-items/[id]/archive route over workItemsService.archiveWorkItem (canEdit-gated, typed errors → 403/404), wire the 2.8.8 Archive flow + archived-item state, and handle page-state-after-mutation on all three surfaces (server refresh vs client-island tick — the board watches CreateIssueProvider.issuesChangedAt). Thread the permission flag to each surface (getManageCapabilities / getCapabilities). Delete is NOT added here — 2.8.4 adds the Delete row + confirm dialog to this menu.
--el-*/shape tokens.