test(search): drop a non-null assertion from the live read error test

Author: waleedlatif1

apps/sim/lib/sim-search/live/application.test.ts

@@ -804,7 +804,7 @@ describe('authorized live retrieval', () => {
         principal,
         input: {
           workspaceId: 'workspace',
-          documentId: search.results[0]!.documentId,
+          documentId: search.results[0]?.documentId ?? '',
           limit: 1,
           resultSecretRegistry: new ResolvedSecretTraceRegistry([]),
         },