feat(domain): add validation and encapsulation to domain models

src/usecase/_clip_text_encode_usecase.py

@@ -11,7 +11,11 @@ class ClipTextEncodeUsecase:
         self.text_encoder_repo = text_encoder_repo
 
     def execute(
-        self, tokenizer: CLIPTokenizer, text_encoder: CLIPTextModel, path: str, text: str
+        self,
+        tokenizer: CLIPTokenizer,
+        text_encoder: CLIPTextModel,
+        path: str,
+        text: str,
     ) -> Conditioning:
         if not text.strip():
             raise ValueError("Text input is empty or whitespace only.")