core: move problem/del to problem/delete

packages/elastic/index.ts

@@ -107,7 +107,7 @@ export default class ElasticSearchService extends Service {
                 document: processDocument(pdoc),
             });
         });
-        this.ctx.on('problem/del', async (domainId, docId) => {
+        this.ctx.on('problem/delete', async (domainId, docId) => {
             await this.client.delete({
                 index: 'problem',
                 id: `${domainId}/${docId}`,