build: migrate from setuptools to hatchling

Refs: KEH-282

Author: danipran

MANIFEST.in

@@ -1,3 +1,57 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "django_ilmoitin"
+version = "0.7.1"
+description = "Django app for sending notifications."
+readme = "README.md"
+license = {file = "LICENSE"}
+authors = [
+    {name = "City of Helsinki", email = "dev@hel.fi"},
+]
+requires-python = ">=3.10"
+classifiers = [
+    "Environment :: Web Environment",
+    "Framework :: Django",
+    "Framework :: Django :: 4.2",
+    "Framework :: Django :: 5.1",
+    "Framework :: Django :: 5.2",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+    "Topic :: Internet :: WWW/HTTP",
+    "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
+]
+dependencies = [
+    "Django>=4.2",
+    "django-parler>=2.0",
+    "django-anymail",
+    "django-mailer",
+    "jinja2",
+]
+
+[project.optional-dependencies]
+graphql_api = [
+    "graphene>=2.0",
+    "graphene-django",
+    "graphql-core<3,>=2.1",
+    "graphql-relay<3,>=2",
+]
+
+[project.urls]
+Homepage = "https://github.com/City-of-Helsinki/django-ilmoitin"
+
+[tool.hatch.build.targets.wheel]
+packages = ["django_ilmoitin"]
+
 [tool.coverage.run]
 source = ["django_ilmoitin"]
 omit = ["**/migrations/*", "**/tests/*"]