fix(external-objects): scope issue deletion activation

Select distinct company-owned mention object IDs before the issue cascade and notify only those objects. Preserve shared references and unrelated future inventory without company-wide reconstruction.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

server/src/services/issues.ts

@@ -97,6 +97,7 @@ import {
   heartbeatRuns,
   routineRuns,
   executionWorkspaces,
+  externalObjectMentions,
   issueApprovals,
   issueAccessGrants,
   issueAttachments,
@@ -12028,7 +12029,14 @@ export function issueService(db: Db) {
           if (owner) {
             await notifyIssueAttentionRetentionWork(tx, { companyId: owner.companyId, issueId: id });
             await notifyExternalConversationSettlement(tx, { companyId: owner.companyId });
-            await notifyExternalObjectRefresh(tx, owner.companyId);
+            const mentionedObjects = await tx.selectDistinct({ objectId: externalObjectMentions.objectId })
+              .from(externalObjectMentions)
+              .where(and(
+                eq(externalObjectMentions.companyId, owner.companyId),
+                eq(externalObjectMentions.sourceIssueId, id),
+                isNotNull(externalObjectMentions.objectId),
+              ));
+            for (const mention of mentionedObjects) await notifyExternalObjectRefresh(tx, owner.companyId, mention.objectId!);
             await notifyApprovalWork(tx, owner.companyId);
             await notifyStatusCardIssueChange(tx, owner.companyId);
           }