fix(ui): shared UserCell для display UUID actor'ов везде

Browser QA на staging показал что UUID actor'а render'ится raw во многих
местах кроме drawer (MR !158 — там был inline fix):
- /reviews Records tab — column AUTHOR
- /reviews Schemas tab — column AUTHOR
- /audit log — column USER

77ec2cc8-98e3-4d70-8037-94038fcbde67 — нечитаемо для оператора. Тот же
паттерн что я делал в MR !158, теперь shared helper:

src/lib/useUserDisplay.tsx:
- useUserDisplay(uuid) hook — returns { display, isMe, fullId }
- UserCell component — readonly cell с title=fullId tooltip
- Match current user (JWT sub claim) → 'Я • <preferred_username>'
- Other user → short UUID (8 chars) + full в title
- null/undefined → 'anonymous'

Применено:
- reviews.tsx:334,625 — records + schemas table AUTHOR cells
- audit.tsx:476 — USER cell
- SchemaDraftDrawer.tsx — refactor (был inline в MR !158 → теперь shared)

TODO Phase 1d: backend endpoint /admin/users/{sub}/display чтобы и для
не-current-user отображать username.

ordinis-admin-ui/src/routes/audit.tsx

@@ -28,6 +28,7 @@ import {
   XIcon,
 } from '@phosphor-icons/react'
 import { buildAuditExportUrl, useAudit, useDictionaries } from '@/api/queries'
+import { UserCell } from '@/lib/useUserDisplay'
 import type { AuditAction, AuditEntry, AuditFilters } from '@/api/client'
 import { localTzOffset, parseFormDate } from '@/lib/dates'
 
@@ -473,7 +474,7 @@ function AuditRow({ row }: { row: AuditEntry }) {
         <TableCell>
           <span className=" text-mono">{row.businessKey ?? '—'}</span>
         </TableCell>
-        <TableCell>{row.userId ?? 'anonymous'}</TableCell>
+        <TableCell><UserCell uuid={row.userId} /></TableCell>
         <TableCell>
           {row.userScope ? <Badge variant="info">{row.userScope}</Badge> : null}
         </TableCell>

ordinis-admin-ui/src/routes/reviews.tsx

@@ -27,6 +27,7 @@ import { CheckCircleIcon, XCircleIcon } from '@phosphor-icons/react'
 import { useDraft, useLiveRecord, useReviewQueue, useSchemaReviewQueue } from '@/api/queries'
 import { useApproveDraft, useRejectDraft } from '@/api/mutations'
 import type { DraftOperation, DraftResponse } from '@/api/client'
+import { UserCell } from '@/lib/useUserDisplay'
 
 export const Route = createFileRoute('/reviews')({
   component: ReviewsPage,
@@ -331,7 +332,7 @@ function ReviewsPage() {
                   <TableCell>
                     <Badge variant={operationVariant(d.operation)}>{d.operation}</Badge>
                   </TableCell>
-                  <TableCell className="text-mono">{d.makerId}</TableCell>
+                  <TableCell><UserCell uuid={d.makerId} /></TableCell>
                   <TableCell className="text-cell text-ink-2">
                     {new Date(d.submittedAt).toLocaleString()}
                   </TableCell>
@@ -622,7 +623,7 @@ function SchemaReviewQueuePanel() {
                 </Link>
               </TableCell>
               <TableCell className="font-mono tabular-nums">v{d.branchedFromVersion}</TableCell>
-              <TableCell className="font-mono">{d.makerId}</TableCell>
+              <TableCell><UserCell uuid={d.makerId} /></TableCell>
               <TableCell className="tabular-nums">
                 {d.submittedAt ? new Date(d.submittedAt).toLocaleString() : '—'}
               </TableCell>