FIX: remove last_run_canceled_at from PipelineDocument and update last_run_status handling

src/services/elasticsearch/elasticsearch.service.ts

@@ -52,7 +52,6 @@ interface PipelineDocument {
   keywords: MultiLangArray;
   // Pipeline run tracking
   last_run_status?: string;
-  last_run_canceled_at?: string;
 }
 
 @Injectable()
@@ -381,7 +380,7 @@ export class ElasticsearchService {
         {
           doc: {
             last_run_status: lastRunStatus,
-            ...(lastRunStatus === 'CANCELED' ? { last_run_canceled_at: now } : {}),
+            updated_at: now,
           },
         },
         { params: { refresh: 'wait_for' } },