enhancement: introduce Ruff for Python linter for reordering and removing unused imports with automated pre-commit and sytle check (#2366)

api/core/model_runtime/entities/llm_entities.py

@@ -2,9 +2,10 @@ from decimal import Decimal
 from enum import Enum
 from typing import Optional
 
+from pydantic import BaseModel
+
 from core.model_runtime.entities.message_entities import AssistantPromptMessage, PromptMessage
 from core.model_runtime.entities.model_entities import ModelUsage, PriceInfo
-from pydantic import BaseModel
 
 
 class LLMMode(Enum):

api/core/model_runtime/entities/model_entities.py

@@ -2,9 +2,10 @@ from decimal import Decimal
 from enum import Enum
 from typing import Any, Optional
 
-from core.model_runtime.entities.common_entities import I18nObject
 from pydantic import BaseModel
 
+from core.model_runtime.entities.common_entities import I18nObject
+
 
 class ModelType(Enum):
     """

api/core/model_runtime/entities/provider_entities.py

@@ -1,9 +1,10 @@
 from enum import Enum
 from typing import Optional
 
+from pydantic import BaseModel
+
 from core.model_runtime.entities.common_entities import I18nObject
 from core.model_runtime.entities.model_entities import AIModelEntity, ModelType, ProviderModel
-from pydantic import BaseModel
 
 
 class ConfigurateMethod(Enum):

api/core/model_runtime/entities/text_embedding_entities.py

@@ -1,8 +1,9 @@
 from decimal import Decimal
 
-from core.model_runtime.entities.model_entities import ModelUsage
 from pydantic import BaseModel
 
+from core.model_runtime.entities.model_entities import ModelUsage
+
 
 class EmbeddingUsage(ModelUsage):
     """