fix: scope Studio organization list to current tenant [EDLYPRODUCT-8305]

[Waleed-Mujahid]

Summary

The taxonomy "Assign to organizations" picker (Studio → Taxonomies → Manage Organizations) was listing every edX organization across all tenants instead of only the organizations belonging to the current tenant.

Root cause

The taxonomy MFE org pickers (the Manage Organizations modal and the taxonomy-list org filter) both fetch their list from the Studio /organizations endpoint:

• MFE: frontend-app-authoring/src/taxonomy/manage-orgs/data/api.ts → generic/data/api.ts:getOrganizations() → GET <STUDIO_BASE_URL>/organizations
• Backend: cms/djangoapps/contentstore/views/organization.py:OrganizationListView.get → organizations.api.get_organizations() → all orgs, unfiltered

The course-creation org dropdown is already tenant-scoped because cms/djangoapps/contentstore/views/course.py:get_organizations() runs its list through the OrganizationsRequested openedx-filter (defined in edly-features-app, wired via OPEN_EDX_FILTERS_CONFIG → io.edly.content_authoring.organization.list.requested.v1). OrganizationListView simply never applied that filter.

Fix

Apply the same OrganizationsRequested.run_filter(...) to the org list returned by OrganizationListView, exactly mirroring the existing course.py usage:

organizations = get_organizations()
org_names_list = [(org["short_name"]) for org in organizations]
#EDLYCUSTOM: filter the org list down to the current tenant's organizations
# (same OrganizationsRequested filter used for the course-creation org dropdown).
org_names_list = OrganizationsRequested.run_filter(organizations=org_names_list)

• One line + the import; no behavioral change to the response shape (still a JSON list of short_name strings).
• The filter's pipeline (OrganizationsRequestedPipeline) short-circuits and returns the input unchanged when get_tenant_config() is falsy, so single-tenant / non-request / management-shell contexts are unaffected.
• Marked with #EDLYCUSTOM per the fork's core-change convention.

Impact

Fixes the taxonomy org pickers and the taxonomy list-page org filter (both share /organizations). Any other consumer of /organizations now also respects tenant isolation, matching the behavior already in place for course creation.

Testing

1. As a tenant admin (GlobalCourseCreator) on red.apps.local.openedx.io, open Studio → Taxonomies → a taxonomy → Manage Organizations.
2. Hard-refresh (org list is cached client-side by react-query useOrganizationListData).
3. "Add another organization" now lists only the current tenant's orgs (e.g. red), not all edX orgs.

Note: verify in the UI — a manage.py cms shell check is not representative because the shell has no eox-tenant request context, so the filter passes through and returns all orgs.

Ticket

https://projects.arbisoft.com/arbisoft/browse/EDLYPRODUCT-8305/