Revamp zone sync and add tests

pyproject.toml

@@ -5,7 +5,7 @@ description = "Machine Database - A Django app for managing computer equipment"
 authors = [
     { name = "EDB", email = "edb@neuf.no" },
 ]
-requires-python = "~=3.10"
+requires-python = ">=3.10"
 license = "GPL-2.0-or-later"
 dependencies = [
     "django>=5.2.1",
@@ -13,6 +13,7 @@ dependencies = [
     "django-extensions>=4.1",
     "djangorestframework>=3.16.0",
     "fabric>=2.7.1",
+    "freezegun>=1.5.5",
     "gunicorn>=23.0.0",
     "ipaddress>=1.0.23,<2.0.0",
     "mysqlclient>=2.0.3,<3.0.0",
@@ -22,9 +23,15 @@ dependencies = [
 [dependency-groups]
 dev = [
     "fabric>=2.6.0,<3.0.0",
+    "pytest>=9.0.2",
+    "pytest-django>=4.12.0",
     "ruff>=0.11.9,<1.0.0",
 ]
 
+[tool.pytest.ini_options]
+DJANGO_SETTINGS_MODULE = "mdbsite.settings"
+python_files = ["tests/test_*.py"]
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"