Validate and compose provider endpoints

internal/usecase/profile_inspection.go

@@ -57,14 +57,19 @@ func (r *Runner) resolveProfileSelection(
 	}, nil
 }
 
-func validateResolvedExecutionTarget(target domain.ExecutionTarget) error {
-	if strings.TrimSpace(target.Endpoint) == "" {
-		return errors.New("execution endpoint is required")
+func normalizeResolvedExecutionTarget(target domain.ExecutionTarget) (domain.ExecutionTarget, error) {
+	endpoint, err := domain.NormalizeOpenAICompatibleBaseEndpoint(target.Endpoint)
+	if err != nil {
+		return domain.ExecutionTarget{}, fmt.Errorf("execution endpoint: %w", err)
 	}
+	target.Endpoint = endpoint
 	if strings.TrimSpace(target.Model) == "" {
-		return errors.New("execution model is required")
+		return domain.ExecutionTarget{}, errors.New("execution model is required")
 	}
-	return domain.ValidateExecutionTargetSettings(target)
+	if err := domain.ValidateExecutionTargetSettings(target); err != nil {
+		return domain.ExecutionTarget{}, err
+	}
+	return target, nil
 }
 
 // InspectProfile resolves one explicit profile without prompt or execution work.
@@ -87,7 +92,8 @@ func (r *Runner) InspectProfile(
 		return nil, err
 	}
 	target, _ := resolveExecutionTarget(selection.backend, selection.profile, nil)
-	if err := validateResolvedExecutionTarget(target); err != nil {
+	target, err = normalizeResolvedExecutionTarget(target)
+	if err != nil {
 		return nil, fmt.Errorf("%w: %w", ErrProfileLoad, err)
 	}
 	target.APIKey = ""