Move close() to _ODataBase and fix MRO order in _ODataClient

- Add _ODataBase.close() to own cache clearing and logger teardown;
  _ODataClient.close() now delegates via super() then closes _http only
- Reorder _ODataClient bases to (_FileUploadMixin, _RelationshipOperationsMixin, _ODataBase)
  so mixins are searched before the base, matching Python MRO convention

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

Author: Abel Milash

src/PowerPlatform/Dataverse/data/_odata.py

@@ -48,7 +48,7 @@
 )
 
 
-class _ODataClient(_ODataBase, _FileUploadMixin, _RelationshipOperationsMixin):
+class _ODataClient(_FileUploadMixin, _RelationshipOperationsMixin, _ODataBase):
     """Dataverse Web API client: CRUD, SQL-over-API, and table metadata helpers."""
 
     def __init__(
@@ -88,14 +88,9 @@ def close(self) -> None:
         Clears all internal caches and closes the underlying HTTP client.
         Safe to call multiple times.
         """
-        self._logical_to_entityset_cache.clear()
-        self._logical_primaryid_cache.clear()
-        self._picklist_label_cache.clear()
+        super().close()
         if self._http is not None:
             self._http.close()
-        if self._http_logger is not None:
-            self._http_logger.close()
-            self._http_logger = None
 
     def _headers(self) -> Dict[str, str]:
         """Build standard OData headers with bearer auth."""

src/PowerPlatform/Dataverse/data/_odata_base.py

@@ -877,6 +877,22 @@ def _sql_guardrails(self, sql: str) -> str:
 
         return sql
 
+    # ------------------------------------------------------------------
+    # Lifecycle
+    # ------------------------------------------------------------------
+
+    def close(self) -> None:
+        """Clear in-memory caches and close the HTTP diagnostic logger.
+
+        Called by subclass ``close()`` via ``super()``. Safe to call multiple times.
+        """
+        self._logical_to_entityset_cache.clear()
+        self._logical_primaryid_cache.clear()
+        self._picklist_label_cache.clear()
+        if self._http_logger is not None:
+            self._http_logger.close()
+            self._http_logger = None
+
     # ------------------------------------------------------------------
     # Cache maintenance
     # ------------------------------------------------------------------