build: modernize license metadata

Author: roli-lpci

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=69", "wheel"]
+requires = ["setuptools>=77", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -8,15 +8,15 @@ version = "0.1.1"
 description = "Repo intent verification and spec drift checks for markdown specs, handoffs, and codebases."
 readme = "README.md"
 requires-python = ">=3.10"
-license = {text = "MIT"}
+license = "MIT"
+license-files = ["LICENSE"]
 authors = [
   {name = "Rolando Bosch"},
 ]
 keywords = ["spec drift", "repo intent verification", "handoff verification", "acceptance criteria", "ci lint"]
 classifiers = [
   "Development Status :: 3 - Alpha",
   "Intended Audience :: Developers",
-  "License :: OSI Approved :: MIT License",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
   "Programming Language :: Python :: 3.10",