feat: improve operations diagnostics and channel management

api/src/deletion-governance/deletion-governance.service.ts

@@ -13,6 +13,10 @@ export type DeleteTargetDto = {
 
 type Dependency = { kind: string; label: string; count: number; items: string[] };
 
+// Report tasks use more terminal values than generic send tasks. Keep this explicit so
+// completed approval and deliberately abandoned history do not block signature deletion.
+const TERMINAL_REPORT_TASK_STATUSES = ['approved', 'completed', 'failed', 'cancelled', 'rejected', 'abandoned', 'partial', 'partial_success'];
+
 export type DeletionPreflight = {
   type: DeletionTargetType;
   id: string;
@@ -114,7 +118,7 @@ export class DeletionGovernanceService {
         tenant: { select: { name: true } }, application: { select: { name: true } },
         templates: { where: { auditStatus: { not: 'deleted' } }, select: { id: true, name: true } },
         drainageItems: { where: { auditStatus: { not: 'deleted' } }, select: { id: true, siteName: true } },
-        reportTasks: { where: { status: { notIn: ['completed', 'failed', 'cancelled', 'rejected'] } }, select: { id: true, status: true } },
+        reportTasks: { where: { status: { notIn: TERMINAL_REPORT_TASK_STATUSES } }, select: { id: true, status: true } },
       },
     });
     if (!item) throw new NotFoundException('签名不存在或无权访问');