Expose delete support for top-level course categories and cascade removal of linked sub-categories/courses for content-management cleanup.
Made-with: Cursor
Add a module delete API route and handler so level/module removal actions remove modules directly instead of only deleting sub-modules.
Made-with: Cursor
Introduce a compatibility delete route and handler for course sub-categories and cascade-delete their linked courses to support admin content cleanup flows.
Made-with: Cursor
Allow course creation payloads to include sub_category_id and persist it so newly created language paths appear in unified hierarchy views.
Made-with: Cursor
