Merge pull request #3 from SaridakisStamatisChristos/codex/fix-test_cli_help-test-assertion

Add module entry point for CLI execution

Author: SaridakisStamatisChristos

src/sudoku_dlx/__main__.py

@@ -0,0 +1,9 @@
+from __future__ import annotations
+
+import sys
+
+from .cli import main
+
+
+if __name__ == "__main__":
+    sys.exit(main())