Fix _BatchBase.__init__ type: od is _ODataBase, not _ODataClient

The async batch client will pass an async OData client that inherits
from _ODataBase, not _ODataClient. _BatchBase only calls pure _build_*
methods defined on _ODataBase, so the broader base type is correct.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Abel Milash

src/PowerPlatform/Dataverse/data/_batch_base.py

@@ -28,7 +28,7 @@
 from ._odata_base import _GUID_RE
 
 if TYPE_CHECKING:
-    from ._odata import _ODataClient
+    from ._odata_base import _ODataBase
 
 __all__ = []
 
@@ -384,7 +384,7 @@ class _BatchBase:
     :param od: The active OData client (provides helpers and HTTP transport).
     """
 
-    def __init__(self, od: "_ODataClient") -> None:
+    def __init__(self, od: "_ODataBase") -> None:
         self._od = od
 
     # ------------------------------------------------------------------