Custom provider Admin API returns 404

[websideofamir]

The Custom providers section is rendered in Admin, but its API requests return 404 {"error":"not_found"}. Providers cannot be listed, created, updated, or deleted through the UI.

Reproduction

1. Open Admin and go to the Custom providers section.
2. Enter a provider configuration and save it.
3. Observe that PUT /v1/admin/custom-providers/:provider returns 404.

GET /v1/admin/custom-providers also returns 404.

Cause

buildApp returns customProviders and refreshCustomProviders, and both are supported by the API dependency type. However, src/index.ts does not pass them into createServer.

The custom-provider routes therefore receive no ctx.deps.customProviders and return not_found.

Expected

The Admin API should receive the custom-provider store and refresh function so the Custom providers section can list and manage providers.

Passing these dependencies to createServer resolves the missing wiring:

customProviders: built.customProviders,
refreshCustomProviders: built.refreshCustomProviders,

[westlavie-creator]

Confirmed and verified end-to-end. I applied exactly this wiring in src/index.ts (passing customProviders: built.customProviders and refreshCustomProviders: built.refreshCustomProviders into createServer), and on a local deployment the whole custom-provider admin API works: PUT/GET/DELETE on /v1/admin/custom-providers/:provider return 200, including live key validation against the provider's /models endpoint, and refreshCustomProviders makes the next catalog read see the change immediately.

Happy to open a code PR with this two-line fix if that would help.