`StudioAssetGateway.listAssets` has always accepted `q`/`cursor` and
returned `nextCursor`, and this screen's own heading promises search
("업로드한 Asset을 검색하고..."). The component asked for `{ limit: 50 }`
and dropped `nextCursor`, so past the 51st asset older assets were
unmanageable with nothing on screen admitting anything was left out.
Follows `document-list.tsx`'s established shape: a `searchDraft`/`q`
pair so only a submitted query is an effect dependency (exactly one
request per deliberate search, never a trailing one), and a
`nextCursor`-driven control that appends rather than replaces.
Two things the pattern did not already cover:
- `RequestOptions.signal` is advisory, so aborting is not enough to stop
an abandoned response from painting over a newer one. An `active` flag
that flips synchronously on dependency change closes that race.
- "더 보기" unmounts exactly when the last page arrives, which would
strand focus on `<body>`. Focus moves to the first appended row
unconditionally, falling back to the page heading -- the same anchor
the delete path already uses.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
