Documentation Search Index: use no-index to avoid duplication issue

Description

API classes from openedx_authz.api modules are not included in the Sphinx search index, making them undiscoverable via the documentation search functionality. This to avoid warnings breaking the docs build.

The openedx_authz.api package re-exports all members from its submodules via from openedx_authz.api.data import * (and similar for other submodules). This causes Sphinx to find the same classes in multiple locations, generating duplicate object description warnings:

/home/mgmdy/Work/Envs/Local/nightly/openedx-authz/openedx_authz/api/data.py:docstring of openedx_authz.api.data.ActionData.NAMESPACE:1: WARNING: duplicate object description of openedx_authz.api.data.ActionData.NAMESPACE, other instance in openedx_authz.api, use :no-index: for one of them

The current workaround uses :no-index: on all automodule directives (via SPHINX_APIDOC_OPTIONS in docs/conf.py). While this eliminates the warnings, it also prevents classes from being added to the search index.

Impact

• ✓ Documentation builds without warnings
• ✓ Classes are documented and visible in HTML pages
• ✗ Classes cannot be found using documentation search

Recommended Solution

Selectively apply :no-index: only to submodule sections, not to the main openedx_authz.api module, to allow classes to be indexed while avoiding duplicate warnings.