feat: add monitoring marked articles and retention updates

server/internal/scheduler/monitoring_retention_worker_test.go

@@ -34,3 +34,34 @@ func TestBatchProbeSQLCapsDryRunProbe(t *testing.T) {
 		t.Fatalf("batchProbeSQL should count only the limited candidate subquery:\n%s", sql)
 	}
 }
+
+func TestMarkedArticleRetentionClearsManualAttributionBeforeDelete(t *testing.T) {
+	var target retentionTarget
+	for _, item := range retentionTargets() {
+		if item.Name == "monitoring_user_marked_articles" {
+			target = item
+			break
+		}
+	}
+	if target.Name == "" {
+		t.Fatal("monitoring_user_marked_articles retention target missing")
+	}
+	if target.PreDeleteSQL == "" {
+		t.Fatal("monitoring_user_marked_articles retention target must clear citation attribution before delete")
+	}
+
+	for _, want := range []string{
+		"SELECT tenant_id, id",
+		"UPDATE monitoring_citation_facts cf",
+		"cf.tenant_id = doomed.tenant_id",
+		"content_source_type = 'manual_mark'",
+		"content_source_id = doomed.id",
+		"SET content_source_type = NULL",
+		"LIMIT $2",
+		"FOR UPDATE SKIP LOCKED",
+	} {
+		if !strings.Contains(target.PreDeleteSQL, want) {
+			t.Fatalf("marked article attribution cleanup SQL missing %q in SQL:\n%s", want, target.PreDeleteSQL)
+		}
+	}
+}