feat!: use orchestrators from jobkit (#248)

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

docling_serve/settings.py

@@ -1,3 +1,4 @@
+import enum
 import sys
 from pathlib import Path
 from typing import Optional, Union
@@ -6,8 +7,6 @@ from pydantic import AnyUrl, model_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 from typing_extensions import Self
 
-from docling_serve.datamodel.engines import AsyncEngine
-
 
 class UvicornSettings(BaseSettings):
     model_config = SettingsConfigDict(
@@ -26,6 +25,11 @@ class UvicornSettings(BaseSettings):
     workers: Union[int, None] = None
 
 
+class AsyncEngine(str, enum.Enum):
+    LOCAL = "local"
+    KFP = "kfp"
+
+
 class DoclingServeSettings(BaseSettings):
     model_config = SettingsConfigDict(
         env_prefix="DOCLING_SERVE_",