feat(cli): phase 1 - local cli with docker integration

tests/test_cli.py

@@ -0,0 +1,27 @@
+from typer.testing import CliRunner
+from mcontainer.cli import app
+
+runner = CliRunner()
+
+
+def test_version() -> None:
+    """Test version command"""
+    result = runner.invoke(app, ["version"])
+    assert result.exit_code == 0
+    assert "MC - Monadical Container Tool" in result.stdout
+
+
+def test_session_list() -> None:
+    """Test session list command"""
+    result = runner.invoke(app, ["session", "list"])
+    assert result.exit_code == 0
+    # Could be either "No active sessions found" or a table of sessions
+    assert "sessions" in result.stdout.lower() or "no active" in result.stdout.lower()
+
+
+def test_help() -> None:
+    """Test help command"""
+    result = runner.invoke(app, ["--help"])
+    assert result.exit_code == 0
+    assert "Usage" in result.stdout
+    assert "Monadical Container Tool" in result.stdout