chore(utils): mark ExistingDirectory and ExistingFile as deprecated

docs/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [Unreleased]
+
+### Deprecated
+
+- utility class for existing directories
+- utility class for existing files
+
 ## [0.1.0] - 2026-09-01
 
 ### Added

src/jcloud_docsgen/utils.py

@@ -22,6 +22,12 @@ import errno
 from typing import Union
 import types
 
+try:
+    from warnings import deprecated
+except ImportError:
+    from typing_extensions import deprecated
+
+@deprecated('Use pathlib.Path instead.')
 class ExistingDirectory(pathlib.Path):
     '''
     pathlib.Path subclass that is a directory.
@@ -37,6 +43,7 @@ class ExistingDirectory(pathlib.Path):
             raise NotADirectoryError(errno.ENOTDIR, 'not a directory', path)
         super().__init__(*(path, *args), **kwargs)
 
+@deprecated('Use pathlib.Path instead.')
 class ExistingFile(pathlib.Path):
     '''
     pathlib.Path subclass that is a file.