Reuse trace endpoint context in details

Why: Object details render the same relationship row and must identify the endpoint relative to that object.

Evidence: Type checking identified the missing selected-object context after the endpoint fix.

Impact: Relationship rendering is consistent in the trace view and object details.

Refs: rdm-two-trees-latest-templates

src/components/RdmAuditWorkspace.tsx

@@ -668,7 +668,7 @@ function ObjectDetailView({ detail }: { detail: ObjectDetail }) {
       {detail.relations && detail.relations.length > 0 && (
         <div>
           <SectionLabel>一跳关系（{detail.relations.length}）</SectionLabel>
-          {detail.relations.map((r, i) => <RelationRow key={i} r={r} />)}
+          {detail.relations.map((r, i) => <RelationRow key={i} r={r} selected={{ kind: detail.kind, id: detail.id }} />)}
         </div>
       )}
       {detail.recentEvents && detail.recentEvents.length > 0 && (