Upgrade PromptKit to version 0.2.0

internal/framework/llm/promptkit_client.go

@@ -100,7 +100,6 @@ func (c *PromptKitClient) CompleteStructured(ctx context.Context, req contracts.
 		ProfileID:     strings.TrimSpace(req.ProfileID),
 		Inputs:        promptKitInputs(req.Inputs),
 		Vars:          promptKitVars(req),
-		Metadata:      promptKitMetadata(req),
 	}
 	prepared, err := c.engine.Prepare(ctx, runReq)
 	if err != nil {
@@ -361,17 +360,6 @@ func promptKitVars(req contracts.StructuredCompletionRequest) map[string]string
 	return vars
 }
 
-func promptKitMetadata(req contracts.StructuredCompletionRequest) map[string]string {
-	metadata := map[string]string{}
-	if stageName := strings.TrimSpace(req.StageName); stageName != "" {
-		metadata["stage_name"] = stageName
-	}
-	if len(metadata) == 0 {
-		return nil
-	}
-	return metadata
-}
-
 var bearerTokenPattern = regexp.MustCompile(`(?i)Bearer\s+[A-Za-z0-9._~+/=-]+`)
 
 func redactPromptKitError(err error) error {