Second staff group over the existing /admin routes (any staff role; bearer-authed,
role re-checked every request). AdminApi/AdminDto/AdminRepository gain posts
(list/create/publish-toggle/delete) and wiki taxonomy (list categories + tags,
create/delete category). AdminContentScreen is a two-tab screen (Posts | Wiki) with
create dialogs; the CMS block/hero editor stays out of scope. Admin wiki DTOs are
prefixed (AdminWikiCategoryDto/AdminWikiTagDto) to avoid colliding with the public
wiki DTOs.
Verified on emulator against the dev backend: posts list with published/draft pills;
publish/unpublish flips the DB row with live reload; create a news post; create +
delete a wiki category (confirmed in MariaDB). assembleDebug + lint green.
Co-Authored-By: Claude <noreply@anthropic.com>
wtclaude
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