Register configured local PromptKit backend

internal/framework/llm/promptkit_client.go

@@ -19,9 +19,15 @@ import (
 
 const promptKitProviderName = "promptkit"
 
+type PromptKitLocalBackendConfig struct {
+	Endpoint         string
+	ConcurrencyLimit int
+}
+
 type PromptKitClientConfig struct {
 	ProfileDir      string
 	ProfileFile     string
+	LocalBackend    *PromptKitLocalBackendConfig
 	Assets          *AssetRegistry
 	Timeout         time.Duration
 	HTTPClient      *http.Client
@@ -46,6 +52,10 @@ type LLMProfileRecorder struct {
 var _ contracts.StructuredLLMClient = (*PromptKitClient)(nil)
 var _ contracts.LLMProfileManifestProvider = (*PromptKitClient)(nil)
 
+func PromptKitLocalBackendOption(cfg PromptKitLocalBackendConfig) promptkit.Option {
+	return promptkit.WithBackend(promptkit.LocalBackend(cfg.Endpoint, cfg.ConcurrencyLimit))
+}
+
 func NewPromptKitClient(cfg PromptKitClientConfig) (*PromptKitClient, error) {
 	if cfg.Assets == nil {
 		return nil, fmt.Errorf("PromptKit client assets must not be nil")
@@ -60,6 +70,11 @@ func NewPromptKitClient(cfg PromptKitClientConfig) (*PromptKitClient, error) {
 	if profileFile := strings.TrimSpace(cfg.ProfileFile); profileFile != "" {
 		options = append(options, promptkit.WithProfileFile(profileFile))
 	}
+	if cfg.LocalBackend != nil {
+		localBackend := *cfg.LocalBackend
+		localBackend.Endpoint = strings.TrimSpace(localBackend.Endpoint)
+		options = append(options, PromptKitLocalBackendOption(localBackend))
+	}
 	options = append(options, cfg.EngineOptions...)
 
 	engine, err := promptkit.NewEngine(promptkit.Config{