feat(products): change reset-all endpoint method from DELETE to POST

backend/src/products/products.controller.ts

@@ -111,7 +111,7 @@ export class ProductsController {
     return this.productsService.restore(id);
   }
 
-  @Delete('reset-all')
+  @Post('reset-all')
   @HttpCode(200)
   resetAll() {
     return this.productsService.resetAll();

frontend/app/admin/products/actions.ts

@@ -76,7 +76,7 @@ export async function deleteProduct(id: number) {
 
 export async function resetAllProducts() {
   const res = await fetch(`${API_BASE}/api/products/reset-all`, {
-    method: 'DELETE',
+    method: 'POST',
     headers: { ...(await getAuthHeaders()) },
     cache: 'no-store',
   });