Through metrics we have observed that there is room to improve the /.well-known/openid-configuration endpoint. The way that the OIDC library was defining interfaces, there are cases where there are redundant unneeded calls.

Specifically, each discovery request would query the current ID token signing keys from the database to populate the id_token_signing_alg_values_supported field. This can actually be taken from the runtime config and the request can run entirely without database queries

Acceptance criteria

• No database queries
• By implementing the following oidc Server methods:

	Discovery(context.Context, *Request[struct{}]) (*Response, error)