Cut over public engine construction to ConfigKit sources

capacity_contract_test.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"gitea.maximumdirect.net/eric/promptkit"
+	"gitea.maximumdirect.net/eric/promptkit/testfixture"
 )
 
 func TestEngineLimitsInjectedClientConcurrency(t *testing.T) {
@@ -150,9 +151,9 @@ func TestUnlimitedBackendsRetainInjectedClientConcurrency(t *testing.T) {
 		{
 			name: "endpoint-only profile",
 			configure: func(t *testing.T, client promptkit.LLMClient) *promptkit.Engine {
-				engine, err := promptkit.NewEngine(promptkit.Config{},
-					promptkit.WithPromptFS(contractPromptFS("prompt", "profile", "message"), "."),
-					promptkit.WithProfiles(promptkit.Profile{
+				engine, err := testfixture.NewEngine(testfixture.Config{},
+					testfixture.WithPromptFS(contractPromptFS("prompt", "profile", "message"), "."),
+					testfixture.WithProfiles(testfixture.Profile{
 						ID: "profile", Endpoint: "http://endpoint.example/v1", Model: "model",
 					}),
 					promptkit.WithLLMClient(client),
@@ -254,15 +255,15 @@ func newBackendCapacityEngine(
 	if reader != nil {
 		promptFS = contractInputPromptFS()
 	}
-	options := []promptkit.Option{
-		promptkit.WithPromptFS(promptFS, "."),
-		promptkit.WithBackend(promptkit.Backend{
+	options := []any{
+		testfixture.WithPromptFS(promptFS, "."),
+		testfixture.WithBackend(testfixture.Backend{
 			ID:               "limited",
 			Endpoint:         "http://backend.example/v1",
 			ConcurrencyLimit: limit,
 			QueueCapacity:    queueCapacity,
 		}),
-		promptkit.WithProfiles(promptkit.Profile{
+		testfixture.WithProfiles(testfixture.Profile{
 			ID: "profile", BackendID: "limited", Model: "model",
 		}),
 		promptkit.WithLLMClient(client),
@@ -270,7 +271,7 @@ func newBackendCapacityEngine(
 	if reader != nil {
 		options = append(options, promptkit.WithArtifactReader(reader))
 	}
-	engine, err := promptkit.NewEngine(promptkit.Config{}, options...)
+	engine, err := testfixture.NewEngine(testfixture.Config{}, options...)
 	if err != nil {
 		t.Fatalf("construct capacity engine: %v", err)
 	}