changes, add dotenv dependency

uv.lock

@@ -45,10 +45,11 @@ wheels = [
 
 [[package]]
 name = "librarysystem"
-version = "0.2.1"
+version = "0.2.2"
 source = { virtual = "." }
 dependencies = [
     { name = "loguru" },
+    { name = "python-dotenv" },
 ]
 
 [package.dev-dependencies]
@@ -57,7 +58,10 @@ dev = [
 ]
 
 [package.metadata]
-requires-dist = [{ name = "loguru", specifier = ">=0.7.3" }]
+requires-dist = [
+    { name = "loguru", specifier = ">=0.7.3" },
+    { name = "python-dotenv", specifier = ">=1.0.1" },
+]
 
 [package.metadata.requires-dev]
 dev = [{ name = "nuitka", specifier = ">=2.5.9" }]
@@ -103,6 +107,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/13/a3/a812df4e2dd5696d1f351d58b8fe16a405b234ad2886a0dab9183fb78109/pycparser-2.22-py3-none-any.whl", hash = "sha256:c3702b6d3dd8c7abc1afa565d7e63d53a1d0bd86cdc24edd75470f4de499cfcc", size = 117552 },
 ]
 
+[[package]]
+name = "python-dotenv"
+version = "1.0.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/bc/57/e84d88dfe0aec03b7a2d4327012c1627ab5f03652216c63d49846d7a6c58/python-dotenv-1.0.1.tar.gz", hash = "sha256:e324ee90a023d808f1959c46bcbc04446a10ced277783dc6ee09987c37ec10ca", size = 39115 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/6a/3e/b68c118422ec867fa7ab88444e1274aa40681c606d59ac27de5a5588f082/python_dotenv-1.0.1-py3-none-any.whl", hash = "sha256:f7b63ef50f1b690dddf550d03497b66d609393b40b564ed0d674909a68ebf16a", size = 19863 },
+]
+
 [[package]]
 name = "win32-setctime"
 version = "1.2.0"