fix: make project move command test cross-platform compatible

Updates test_project_move_command_uses_permalink to use os.path.join()
for path construction instead of hardcoded Unix-style paths. This
ensures the test works correctly on both Windows and Unix systems
by using the appropriate path separator for each platform.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Joe P <joe@basicmemory.com>

Author: jope-bm

tests/cli/test_project_commands.py

@@ -207,7 +207,7 @@ def test_project_move_command_uses_permalink(mock_session, mock_call_patch, cli_
 
     # Test with a project name that needs normalization (spaces, mixed case)
     project_name = "Test Project Name"
-    new_path = "/new/path/to/project"
+    new_path = os.path.join("new", "path", "to", "project")
 
     result = runner.invoke(cli_app, ["project", "move", project_name, new_path])