test(hermes_cli): make test_default_path pass on native Windows

TestGetHermesHome.test_default_path asserted ~/.hermes unconditionally,
but the native Windows default is %LOCALAPPDATA%\hermes (see
hermes_constants._get_platform_default_hermes_home). Branch the
assertion by platform so the test passes everywhere.

Salvaged from PR #96003 by @Aoshi-Dev (the parse-guard half of that PR
was superseded by #96169); authorship preserved.

tests/hermes_cli/test_config.py

@@ -1,6 +1,7 @@
 """Tests for hermes_cli configuration management."""
 
 import os
+import sys
 from pathlib import Path
 from unittest.mock import patch
 
@@ -37,7 +38,18 @@ class TestGetHermesHome:
         with patch.dict(os.environ, {}, clear=False):
             os.environ.pop("HERMES_HOME", None)
             home = get_hermes_home()
-            assert home == Path.home() / ".hermes"
+            if sys.platform == "win32":
+                # Windows default is %LOCALAPPDATA%\hermes — see
+                # hermes_constants._get_platform_default_hermes_home.
+                local_appdata = os.environ.get("LOCALAPPDATA", "").strip()
+                base = (
+                    Path(local_appdata)
+                    if local_appdata
+                    else Path.home() / "AppData" / "Local"
+                )
+                assert home == base / "hermes"
+            else:
+                assert home == Path.home() / ".hermes"
 
 
 class TestEnsureHermesHome: