chore: import clean Agent Desk snapshot (2/7)

internal/pkg/i18nx/error.go

@@ -0,0 +1,38 @@
+package i18nx
+
+type Error struct {
+	Key   string
+	Args  []any
+	Cause error
+}
+
+func Errorf(key string, args ...any) *Error {
+	err := &Error{Key: key, Args: args}
+	for _, arg := range args {
+		if cause, ok := arg.(error); ok {
+			err.Cause = cause
+		}
+	}
+	return err
+}
+
+func (e *Error) Error() string {
+	if e == nil {
+		return ""
+	}
+	return e.Message(DefaultLocale)
+}
+
+func (e *Error) Message(locale string) string {
+	if e == nil {
+		return ""
+	}
+	return Getf(locale, e.Key, e.Args...)
+}
+
+func (e *Error) Unwrap() error {
+	if e == nil {
+		return nil
+	}
+	return e.Cause
+}