初版功能完成

internal/identity/path_other.go

@@ -0,0 +1,13 @@
+//go:build !windows
+
+package identity
+
+import (
+	"errors"
+
+	"remlink/internal/model"
+)
+
+var ErrWindowsRequired = errors.New("default Node identity path requires Windows")
+
+func DefaultPath(model.NodeType) (string, error) { return "", ErrWindowsRequired }