Guard the Windows-only windows_window_manage import

ctypes.WINFUNCTYPE is only defined on Windows; Linux's ctypes raises
``ImportError: cannot import name 'WINFUNCTYPE'`` when
``windows.window.windows_window_manage`` is loaded. My new
Docker / Linux CI workflow exposed this pre-existing unconditional
import in the package facade.

Gate the import on ``sys.platform`` so ``import je_auto_control``
keeps working on macOS / Linux; the wrappers in
``auto_control_window`` already check the platform and raise
``NotImplementedError`` for the Windows-only operations on other
OSes, so non-Windows callers see a clean error instead of an
import-time crash.

Author: JE-Chen

je_auto_control/__init__.py

@@ -292,8 +292,16 @@
 # test record
 from je_auto_control.utils.test_record.record_test_class import \
     test_record_instance
-# Windows
-from je_auto_control.windows.window import windows_window_manage
+# Windows-only modules (ctypes.WINFUNCTYPE / Win32 API) — gate the
+# import so ``import je_auto_control`` keeps working on macOS / Linux.
+# The facade wrappers re-import these on demand and raise
+# NotImplementedError for the Windows-only operations on other OSes.
+import sys as _sys_for_platform_check  # noqa: E402
+if _sys_for_platform_check.platform in ("win32", "cygwin", "msys"):
+    from je_auto_control.windows.window import windows_window_manage  # noqa: E402
+else:
+    windows_window_manage = None  # type: ignore[assignment]
+del _sys_for_platform_check
 from je_auto_control.wrapper.auto_control_image import locate_all_image
 from je_auto_control.wrapper.auto_control_image import locate_and_click
 from je_auto_control.wrapper.auto_control_image import locate_image_center