fix: use correct template variable for importlinter config and wrap nav under API Reference key

Replace `{{ module_name }}` with `{{ package_name }}` in importlinter root_package and
ancestors settings, and wrap the generated navigation structure under an "API Reference"
top-level key in ref-pages output.

Author: liblaf

mise-tasks/gen/ref-pages.py

@@ -91,7 +91,7 @@ def main() -> None:
         full_doc_path.parent.mkdir(parents=True, exist_ok=True)
         full_doc_path.write_text(MARKDOWN_TEMPLATE.format(module_path=".".join(parts)))
         nav.add(parts, doc_path)
-    print(tomlkit.dumps(nav.dump()))
+    print(tomlkit.dumps({"API Reference": nav.dump()}))
 
 
 if __name__ == "__main__":

template/pyproject.toml.jinja

@@ -74,10 +74,10 @@ packages = ["src/{{ wheel_package_dir }}"]
 source = "vcs"
 
 [tool.importlinter]
-root_package = "{{ module_name }}"
+root_package = "{{ package_name }}"
 
 [[tool.importlinter.contracts]]
-ancestors = ["{{ module_name }}"]
+ancestors = ["{{ package_name }}"]
 name = "Acyclic siblings"
 type = "acyclic_siblings"