Consolidates the scattered `array_values(array_unique(array_map('intval',
$x)))` + manual positive-filter pattern behind a single lenient helper
`toIntIds(mixed $value): array` in core/Support/helpers/array.php.
- `RepositoryArrayHelper::sanitizePositiveIds()` now delegates (keeps
strict array-input contract + existing tests intact).
- Drops two private duplicates: `UserProfileViewService::normalizeIds()`
and `AddressBookService::normalizeIds()`.
- Replaces 12 inline occurrences across admin action pages with the
helper, cutting boilerplate by 3-5 lines per site.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Move breadcrumb rendering from individual page templates into the core
topbar. Each page now sets $breadcrumbs in its action .php file; the
topbar renders it automatically via the shared partial.
- Remove global back/forward buttons and app-nav-history.js component
- Remove Alt+Arrow keyboard shortcuts for history navigation
- Render breadcrumb in topbar-left section (replaces button area)
- Clean up breadcrumb CSS: context-neutral base (flex, no margin)
- Recalculate sticky titlebar offset in details container
- Migrate all 41 pages (core + helpdesk, audit, addressbook, api-docs)
- Add missing breadcrumbs to addressbook detail view
- Update architecture contract tests (nav-history references removed)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
