update

routes/categoryRoutes.js

@@ -33,4 +33,11 @@ router.put('/:id', categoryController.updateCategory);
 // DELETE /api/categories/:id - Delete category
 router.delete('/:id', categoryController.deleteCategory);
 
+// ============ Nested Subject Routes ============
+// POST /api/categories/:categoryId/subjects - Add subject to category
+router.post('/:categoryId/subjects', categoryController.addSubjectToCategory);
+
+// DELETE /api/categories/:categoryId/subjects/:subjectId - Remove subject from category
+router.delete('/:categoryId/subjects/:subjectId', categoryController.removeSubjectFromCategory);
+
 module.exports = router;