standardize packaging, tooling, docs, CI, and licensing

docforge/models/module.py

@@ -9,7 +9,7 @@ model. A `Module` acts as a container for top-level documented objects
 introspection.
 """
 
-from typing import Dict, Iterable, Optional
+from collections.abc import Iterable
 
 from docforge.models.object import DocObject
 
@@ -36,7 +36,7 @@ class Module:
     def __init__(
         self,
         path: str,
-        docstring: Optional[str] = None,
+        docstring: str | None = None,
     ) -> None:
         """
         Initialize a Module instance.
@@ -50,7 +50,7 @@ class Module:
         """
         self.path = path
         self.docstring = docstring
-        self.members: Dict[str, DocObject] = {}
+        self.members: dict[str, DocObject] = {}
 
     def add_object(self, obj: DocObject) -> None:
         """