Expose import defaults and selection evidence

internal/engine/import_spec.go

@@ -52,6 +52,40 @@ type importDefaults struct {
 	pattern   []string
 }
 
+// ImportDefaults transports root-owned load defaults across the facade
+// boundary. Load options snapshot this value before source acquisition.
+type ImportDefaults struct {
+	// Required controls absence handling when non-nil.
+	Required *bool
+	// Follow controls symlink following when non-nil.
+	Follow *bool
+	// Hidden controls hidden-entry discovery when non-nil.
+	Hidden *bool
+	// Recursive controls descendant directory traversal when non-nil.
+	Recursive *bool
+	// Pattern filters directory-search filenames; nil and empty differ.
+	Pattern []string
+}
+
+// OptionsWithImportDefaults copies root-owned defaults into ordinary options.
+func OptionsWithImportDefaults[T any](options Options[T], value ImportDefaults) Options[T] {
+	options.importDefaults = privateImportDefaults(value)
+	return options
+}
+
+// LayeredOptionsWithImportDefaults copies root-owned defaults into grouped options.
+func LayeredOptionsWithImportDefaults[T any](options LayeredOptions[T], value ImportDefaults) LayeredOptions[T] {
+	options.importDefaults = privateImportDefaults(value)
+	return options
+}
+
+func privateImportDefaults(value ImportDefaults) importDefaults {
+	return snapshotImportDefaults(importDefaults{
+		required: value.Required, follow: value.Follow, hidden: value.Hidden,
+		recursive: value.Recursive, pattern: value.Pattern,
+	})
+}
+
 type resolvedImportPolicy struct {
 	required    bool
 	follow      bool