Add Scriptorium-backed LLM runtime

internal/framework/contracts/contracts.go

@@ -31,6 +31,7 @@ type StructuredCompletionResponse struct {
 	Content          json.RawMessage `json:"content"`
 	Provider         string          `json:"provider,omitempty"`
 	Model            string          `json:"model,omitempty"`
+	ProfileID        string          `json:"profile_id,omitempty"`
 	PromptTokens     int             `json:"prompt_tokens,omitempty"`
 	CompletionTokens int             `json:"completion_tokens,omitempty"`
 	TotalTokens      int             `json:"total_tokens,omitempty"`
@@ -40,6 +41,10 @@ type StructuredLLMClient interface {
 	CompleteStructured(ctx context.Context, req StructuredCompletionRequest, out any) (StructuredCompletionResponse, error)
 }
 
+type LLMProfileManifestProvider interface {
+	LLMProfileManifests() []artifacts.LLMProfileManifest
+}
+
 type LLMInputMaterial struct {
 	Name      string `json:"name"`
 	MediaType string `json:"media_type,omitempty"`