🔧 Add PEP-639 license metadata (#234)

Author: svlandeg

pyproject.toml

@@ -7,7 +7,8 @@ authors = [
 ]
 requires-python = ">=3.8"
 readme = "README.md"
-license = {text = "MIT"}
+license = "MIT"
+license-files = ["LICENSE"]
 classifiers = [
     "Intended Audience :: Information Technology",
     "Intended Audience :: System Administrators",
@@ -22,7 +23,6 @@ classifiers = [
     "Development Status :: 4 - Beta",
     "Framework :: FastAPI",
     "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
@@ -31,7 +31,6 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
-    "License :: OSI Approved :: MIT License",
 ]
 dependencies = [
     "typer >= 0.15.1",