feat(assets): add dimension analysis and authorized user previews

Refactor asset drilldowns with combined dimension filters, parent summaries and progressive loading. Add the hidden /who read-only permission preview with scoped authorization, identity mapping and audit logging. Refine inventory counts and AI问数 presentation.

src/modules/assets/components/FlowDetailModal.tsx

@@ -46,7 +46,7 @@ export function FlowDetailModal({
                         {dateLabel} · {FLOW_META[selectedFlow.type].label}明细
                       </h3>
                       <div className="mt-1 text-[12px] font-bold text-slate-300">
-                        共 {selectedFlowDetails.length} 车次，包含车牌、运维签章时间、建单时间、部门、负责人和客户
+                        共 {selectedFlowDetails.length} 车次，包含车牌、运维签章时间、建单时间、部门、业务负责人和客户
                       </div>
                     </div>
                     <button
@@ -120,7 +120,7 @@ export function FlowDetailModal({
                             <div className="mt-1 font-bold text-slate-700">{item.eventTime || '-'}</div>
                           </div>
                           <div className="rounded-xl bg-slate-50 p-2">
-                            <div className="font-black text-slate-400">负责人</div>
+                            <div className="font-black text-slate-400">业务负责人</div>
                             <div className="mt-1 font-bold text-slate-700">{item.manager || '-'}</div>
                           </div>
                           <div className="rounded-xl bg-slate-50 p-2">