refactor: merge Handler and Service layers into UseCase

src/domain/repositories/__init__.py

@@ -1,6 +1,6 @@
 from ._autoencoder_repository import AutoencoderRepository
 from ._pipeline_repository import PipelineRepository
-from ._sampling_repository import SamplingRepository
+from ._sampler_repository import SamplerRepository
 from ._scheduler_repository import SchedulerRepository
 from ._text_encoder_repository import TextEncoderRepository
 
@@ -8,6 +8,6 @@ __all__ = [
     "PipelineRepository",
     "AutoencoderRepository",
     "TextEncoderRepository",
-    "SamplingRepository",
+    "SamplerRepository",
     "SchedulerRepository",
 ]

src/domain/repositories/_sampler_repository.py

@@ -6,7 +6,7 @@ from diffusers.schedulers.scheduling_utils import SchedulerMixin
 from PIL import Image
 
 
-class SamplingRepository(ABC):
+class SamplerRepository(ABC):
     @abstractmethod
     def sample(
         self,