Add Microsoft copyright header to all source and test files

- Added standard Microsoft copyright header to all Python files in src/dataverse_sdk/
- Added copyright header to all test files in tests/
- Ensures consistent licensing information across the codebase
- Header format: # Copyright (c) Microsoft Corporation. # Licensed under the MIT license.

Author: suyask-msft

CONTRIBUTING.md

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 """
 Microsoft Dataverse SDK for Python.
 

src/dataverse_sdk/__init__.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 """Version information for dataverse-client-python package."""
 
 __version__ = "0.1.0"

src/dataverse_sdk/__version__.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 from __future__ import annotations
 
 from dataclasses import dataclass

src/dataverse_sdk/auth.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 from __future__ import annotations
 
 from typing import Any, Dict, Optional, Union, List, Iterable

src/dataverse_sdk/client.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 from __future__ import annotations
 
 from dataclasses import dataclass

src/dataverse_sdk/config.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 # HTTP subcode constants
 HTTP_400 = "http_400"
 HTTP_401 = "http_401"

src/dataverse_sdk/error_codes.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 from __future__ import annotations
 from typing import Any, Dict, Optional
 import datetime as _dt

src/dataverse_sdk/errors.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 from __future__ import annotations
 
 import time

src/dataverse_sdk/http.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 from __future__ import annotations
 
 from typing import Any, Dict, Optional, List, Union, Iterable