The composer model picker capped each provider's search matches at 12
(PER_PROVIDER_SEARCH). A provider serving more than 12 models (e.g.
opencode-go with 19) showed only a truncated subset when the user typed
its name to find it — exactly the models they were searching for got
cut. Edit Models showed the full list because it never applied this cap.
A search is already a narrowing action, so capping a single provider's
own matches is wrong. Remove the slice; search now lists every matching
model for the provider. The no-search default still shows the curated
top-N per provider via the visibility set.
Follow-up to #47077 (the backend dedup fix); this closes the remaining
frontend truncation users saw in the composer.
d4fa2db1c5