fix(assets): expose full inventory for scoped users and stabilize previews

src/auth/PermissionPreview.tsx

@@ -6,8 +6,8 @@ import './PermissionPreview.css';
 
 const scopes = [
   { level: 'full', title: '全量数据', role: 'BI-Leader', detail: '查看全量业务数据。' },
-  { level: 'department', title: '部门数据', role: 'BI-Leader-Dep', detail: '查看当前用户所在部门的数据。' },
-  { level: 'personal', title: '本人数据', role: '其他角色默认', detail: '查看本人负责的车辆。' },
+  { level: 'department', title: '部门数据', role: 'BI-Leader-Dep', detail: '运营数据限本部门，库存查看全量。' },
+  { level: 'personal', title: '本人数据', role: '其他角色默认', detail: '运营数据限本人负责，库存查看全量。' },
 ];
 export function permissionScope(user: AuthUser) {
   return scopes.find(s => s.level === user.permissionLevel)?.title || '本人数据';
@@ -69,7 +69,7 @@ function PreviewPicker({ onClose }: { onClose: () => void }) {
     <header><div><h2 id="permission-preview-title"><ShieldCheck size={19} />权限视角</h2><p>选择人员，查看其实际页面权限与数据范围。</p></div><button disabled={busy} className="permission-preview-back" onClick={onClose}><ArrowLeft size={18} aria-hidden="true" />返回 BI</button></header>
     <div className="permission-preview-body">
       <div className="permission-preview-guide" aria-label="三类数据权限说明">{scopes.map(scope => <div key={scope.level}><strong>{scope.title}</strong><code>{scope.role}</code><p>{scope.detail}</p></div>)}</div>
-      <p className="permission-preview-hint">菜单和数据随目标用户权限变化；共享汇总仍按页面注明的公共口径展示。预览期间仅可查看，不能修改业务数据。</p>
+      <p className="permission-preview-hint">菜单和运营数据随目标用户权限变化；库存（含待交车、异动）统一展示全量，仍可按所属公司筛选。预览期间仅可查看，不能修改业务数据。</p>
       <div className="permission-preview-search"><label><Search size={16} /><input autoFocus type="search" value={query} disabled={busy} onChange={e => { setQuery(e.target.value); setPage(1); }} placeholder="搜索中文姓名、用户名或部门" aria-label="搜索人员" /></label><select aria-label="数据范围筛选" value={level} disabled={busy} onChange={e => { setLevel(e.target.value); setPage(1); }}><option value="">全部数据范围</option>{scopes.map(s => <option key={s.level} value={s.level}>{s.title}</option>)}</select></div>
       {error && <div className="permission-preview-error" role="alert">{error}<button disabled={busy} onClick={() => setRetry(v => v + 1)}>重试</button></div>}
       {!hasQuery ? <p className="permission-preview-empty">输入中文姓名、用户名或部门关键词，模糊搜索人员。</p> : <div className="permission-preview-users" role="radiogroup" aria-label="选择预览用户" aria-busy={loading}>