Switch from hatch to setuptools/CFFI build to produce wheels correctly.

pyproject.toml

@@ -1,11 +1,11 @@
 [build-system]
-requires = ["hatchling", "cffi>=2.0.0"]
-build-backend = "hatchling.build"
+requires = ["setuptools>=61.0", "cffi>=2.0.0"]
+build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyaegis"
 version = "0.1.0"
-description = "Python bindings for libaegis (links to system library)"
+description = "Python bindings for libaegis (links to static library)"
 requires-python = ">=3.12"
 classifiers = [
   "Programming Language :: Python :: 3",
@@ -27,10 +27,8 @@ dev = [
     "pytest>=8.4.2",
 ]
 
-[tool.hatch.build.hooks.custom]
-# Placeholder build hook for compiling libaegis with Zig during wheel builds.
-# The actual Zig build is intentionally not executed yet.
-path = "tools/build_hook.py"
-
-[tool.hatch.build.targets.wheel]
+[tool.setuptools]
 packages = ["pyaegis"]
+
+[tool.setuptools.package-data]
+pyaegis = ["*.h", "*.so", "*.pyd"]