fix timezone handling and logging fallback robustness

tests/test_cli_state.py

@@ -7,7 +7,7 @@ from pathlib import Path
 import pytest
 from click.testing import CliRunner
 
-from vlm.cli import main
+from vlm.cli import main, default_config_path
 
 
 @pytest.fixture
@@ -85,6 +85,12 @@ def test_state_set_and_show(runner, temp_state_file, temp_config):
     assert "checked manually" in result.output
 
 
+def test_default_config_path_resolves_at_runtime(tmp_path, monkeypatch):
+    """Test CLI default config path follows current home directory."""
+    monkeypatch.setattr(Path, 'home', lambda: tmp_path)
+    assert default_config_path() == tmp_path / ".vlm" / "config.yaml"
+
+
 def test_state_query(runner, temp_state_file, temp_config):
     """Test querying files by status."""
     test_files = [