updated tests to work without .env file

uv.lock

@@ -207,6 +207,7 @@ dependencies = [
 dev = [
     { name = "pytest" },
     { name = "pytest-asyncio" },
+    { name = "pytest-env" },
     { name = "pytest-mock" },
 ]
 
@@ -223,6 +224,7 @@ requires-dist = [
 dev = [
     { name = "pytest", specifier = ">=9.0.2" },
     { name = "pytest-asyncio", specifier = ">=1.3.0" },
+    { name = "pytest-env", specifier = ">=1.5.0" },
     { name = "pytest-mock", specifier = ">=3.15.1" },
 ]
 
@@ -362,6 +364,19 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/e5/35/f8b19922b6a25bc0880171a2f1a003eaeb93657475193ab516fd87cac9da/pytest_asyncio-1.3.0-py3-none-any.whl", hash = "sha256:611e26147c7f77640e6d0a92a38ed17c3e9848063698d5c93d5aa7aa11cebff5", size = 15075, upload-time = "2025-11-10T16:07:45.537Z" },
 ]
 
+[[package]]
+name = "pytest-env"
+version = "1.5.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "pytest" },
+    { name = "python-dotenv" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/e6/56/a931c6f6194917ff44be41b8586e2ffd13a18fa70fb28d9800a4695befa5/pytest_env-1.5.0.tar.gz", hash = "sha256:db8994b9ce170f135a37acc09ac753a6fc697d15e691b576ed8d8ca261c40246", size = 15271, upload-time = "2026-02-17T18:31:39.095Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/61/af/99b52a8524983bfece35e51e65a0b517b22920c023e57855c95e744e19e4/pytest_env-1.5.0-py3-none-any.whl", hash = "sha256:89a15686ac837c9cd009a8a2d52bd55865e2f23c82094247915dae4540c87161", size = 10122, upload-time = "2026-02-17T18:31:37.496Z" },
+]
+
 [[package]]
 name = "pytest-mock"
 version = "3.15.1"