Add category.move to reparent a category.

Validates both source and target via resolveCategoryAccess so the new
parent must be a category of the same authorized company, and guards
against moving into a descendant (cycle). Assigns next sibling sort.

src/index.js

@@ -9,6 +9,7 @@ import categoryGetTreeForCompany from './store/category/getTreeForCompany.js';
 import categoryGetCategoryArticles from './store/category/getCategoryArticles.js';
 import categoryCreateUnderParent from './store/category/createUnderParent.js';
 import categoryRename from './store/category/rename.js';
+import categoryMove from './store/category/move.js';
 import categoryOrder from './store/category/order.js';
 import categoryDelete from './store/category/delete.js';
 import articleDelete from './store/article/delete.js';
@@ -74,6 +75,7 @@ export default class LibDashStore {
       getCategoryArticles: categoryGetCategoryArticles(pool),
       createUnderParent: categoryCreateUnderParent(pool),
       rename: categoryRename(pool),
+      move: categoryMove(pool),
       order: categoryOrder(pool),
       delete: categoryDelete(pool),
     };