feat: public API, SEO and existing surfaces

features/media_browse.qa.md

@@ -13,7 +13,7 @@ Toast ids: "media-url-copied-{id}", "media-renamed-{id}", "media-deleted-{id}",
 ## Automated (Vitest + Vue Test Utils, `task test:web`)
 
 Mock `useApi`'s `request` (or the global fetch it wraps) per case for `GET /v1/media/`,
-`GET /v1/media/{id}/usage`, `GET /v1/media/?hash=`, `PATCH /v1/media/{id}` and
+`GET /v1/media/{id}/usage` (article items carry `story_id` and `lang`; counts stay by article), `GET /v1/media/?hash=`, `PATCH /v1/media/{id}` and
 `DELETE /v1/media/{id}`, plus `navigator.clipboard.writeText` and `navigator.onLine`. No real
 backend. Mount MediaPage inside DashboardShell with a verified session and a test router at
 /media. Sample data is the 12-image fixture in the .feature Background (same ids, filenames,