feat: add authz schema definition files

MANIFEST.in

@@ -3,4 +3,4 @@ include LICENSE.txt
 include README.rst
 include requirements/base.in
 include requirements/constraints.txt
-recursive-include openedx_authz *.html *.png *.gif *.js *.css *.jpg *.jpeg *.svg *.conf *.policy
+recursive-include openedx_authz *.html *.png *.gif *.js *.css *.jpg *.jpeg *.svg *.conf *.policy *.yaml *.yml

openedx_authz/authz/__init__.py

@@ -0,0 +1,33 @@
+"""openedx-authz's own static authorization schema resources.
+
+This package ships the platform-default schema files under ``authz/schema`` and
+exposes that directory through the ``authz.schema`` entry point (ADR 0019).
+openedx-authz is a schema provider like any other distribution; its directory is
+discovered the same way a third-party application's would be, and the loader
+reads every ``.yaml`` file inside it.
+
+Register in setup.py / pyproject.toml::
+
+    entry_points = {
+        "authz.schema": [
+            "openedx_authz = openedx_authz.authz:get_schema_resources",
+        ],
+    }
+"""
+
+from __future__ import annotations
+
+# Directory paths (relative to an importable top-level package) that contain
+# this distribution's ``.yaml`` schema files. Per ADR 0019, providers return
+# directories, not individual files.
+SCHEMA_DIRECTORIES: tuple[str, ...] = ("openedx_authz/authz/schema",)
+
+
+def get_schema_resources() -> list[str]:
+    """Return this package's schema directory paths.
+
+    The ``authz.schema`` entry point points at this callable; the discovery
+    step resolves each returned directory via ``importlib.resources`` and loads
+    every ``.yaml`` file it contains.
+    """
+    return list(SCHEMA_DIRECTORIES)