feat(struct): add struct name function (#328)

* feat(struct): add struct name function

- Add Name() method to Struct type to return the struct name
- Implement unit tests for the new Name() method

* refactor(structs): rename Struct.Name to Struct.TypeName

- Rename method Name to TypeName for clarity and accuracy
- Update corresponding test cases

structs/struct.go

@@ -122,3 +122,8 @@ func (s *Struct) IsStruct() bool {
 func ToMap(v any) (map[string]any, error) {
 	return New(v).ToMap()
 }
+
+// TypeName return struct type name
+func (s *Struct) TypeName() string {
+	return s.rtype.Name()
+}