refactor: convert script to automtu package with CI workflow

https://chatgpt.com/share/697112b2-0410-800f-93ff-9372b603d43f

tests/unit/test___init__.py

@@ -0,0 +1,14 @@
+import unittest
+
+import automtu
+
+
+class TestInit(unittest.TestCase):
+    def test_version_is_exposed(self) -> None:
+        self.assertTrue(hasattr(automtu, "__version__"))
+        self.assertIsInstance(automtu.__version__, str)
+        self.assertRegex(automtu.__version__, r"^\d+\.\d+\.\d+$")
+
+
+if __name__ == "__main__":
+    unittest.main(verbosity=2)