feat(webhook): retry delivery — POST /deliveries/{id}/retry + UI кнопка

Раньше для replay'а failed/DLQ delivery нужно было либо ждать
backoff schedule (до 24h), либо лезть в БД и руками сбрасывать
attempt_count + dlq_at. Теперь admin замечает failed delivery в
UI, фиксит receiver (cert renewal, URL update), кликает 'повторить'
— dispatcher подхватит на следующем sendTick.

Backend:
- POST /api/v1/admin/webhooks/deliveries/{id}/retry
- RBAC: RESTRICTED (можно spam'ить receiver = destructive)
- Использует existing WebhookDelivery.resetDlq() — атомарно
  status=retrying, attemptCount=0, dlqAt=null, nextAttemptAt=now

UI:
- Колонка 'Действия' в delivery history таблице (на webhook detail page)
- IconButton 'Повторить' показывается только для status=dlq|retrying
  (delivered/pending не имеет смысла retry'ить)
- Confirm dialog объясняет что receiver получит payload снова
- onSuccess invalidate ['webhooks','deliveries'] + ['webhooks','dlq']

Tests: 75 admin-ui passed, rest-api compiles clean. Логика
resetDlq() уже покрыта unit tests в WebhookDeliveryTest.

ordinis-admin-ui/src/routes/webhooks.$id.tsx

@@ -18,6 +18,7 @@ import {
   TableRow,
 } from '@nstart/ui'
 import {
+  ArrowClockwiseIcon,
   ArrowsClockwiseIcon,
   KeyIcon,
   TrashIcon,
@@ -28,6 +29,7 @@ import {
 } from '@/api/queries'
 import {
   useDeleteWebhook,
+  useRetryWebhookDelivery,
   useRotateWebhookSecret,
 } from '@/api/mutations'
 import { SCOPE_DOT } from '@/lib/scope-style'
@@ -51,6 +53,12 @@ function WebhookDetailPage() {
   const deliveries = useWebhookDeliveries(id, page, 50)
   const rotateMut = useRotateWebhookSecret()
   const deleteMut = useDeleteWebhook()
+  const retryMut = useRetryWebhookDelivery()
+
+  const handleRetry = (deliveryId: number) => {
+    if (!window.confirm(t('webhooks.deliveries.confirmRetry'))) return
+    retryMut.mutate(deliveryId)
+  }
   const [revealedSecret, setRevealedSecret] = useState<string | null>(null)
 
   const handleRotate = () => {
@@ -193,41 +201,58 @@ function WebhookDetailPage() {
                   <TableHeaderCell>{t('webhooks.deliveries.col.lastAttempt')}</TableHeaderCell>
                   <TableHeaderCell>{t('webhooks.deliveries.col.lastStatusCode')}</TableHeaderCell>
                   <TableHeaderCell>{t('webhooks.deliveries.col.lastError')}</TableHeaderCell>
+                  <TableHeaderCell align="right">
+                    {t('dict.col.actions')}
+                  </TableHeaderCell>
                 </TableRow>
               </TableHead>
               <TableBody>
-                {deliveries.data.content.map((d) => (
-                  <TableRow key={d.id}>
-                    <TableCell>
-                      <span className="font-mono text-2xs">{d.outboxEventId}</span>
-                    </TableCell>
-                    <TableCell>
-                      <Badge variant={STATUS_BADGE[d.status] ?? 'neutral'}>
-                        {d.status}
-                      </Badge>
-                    </TableCell>
-                    <TableCell>
-                      <span className="font-mono text-2xs">{d.attemptCount}</span>
-                    </TableCell>
-                    <TableCell>
-                      <span className="text-2xs text-carbon/70">
-                        {d.lastAttemptAt
-                          ? new Date(d.lastAttemptAt).toLocaleString()
-                          : '—'}
-                      </span>
-                    </TableCell>
-                    <TableCell>
-                      <span className="font-mono text-2xs">
-                        {d.lastStatusCode ?? '—'}
-                      </span>
-                    </TableCell>
-                    <TableCell>
-                      <span className="text-2xs text-carbon/70 line-clamp-2 max-w-md inline-block">
-                        {d.lastError ?? '—'}
-                      </span>
-                    </TableCell>
-                  </TableRow>
-                ))}
+                {deliveries.data.content.map((d) => {
+                  const canRetry = d.status === 'dlq' || d.status === 'retrying'
+                  return (
+                    <TableRow key={d.id}>
+                      <TableCell>
+                        <span className="font-mono text-2xs">{d.outboxEventId}</span>
+                      </TableCell>
+                      <TableCell>
+                        <Badge variant={STATUS_BADGE[d.status] ?? 'neutral'}>
+                          {d.status}
+                        </Badge>
+                      </TableCell>
+                      <TableCell>
+                        <span className="font-mono text-2xs">{d.attemptCount}</span>
+                      </TableCell>
+                      <TableCell>
+                        <span className="text-2xs text-carbon/70">
+                          {d.lastAttemptAt
+                            ? new Date(d.lastAttemptAt).toLocaleString()
+                            : '—'}
+                        </span>
+                      </TableCell>
+                      <TableCell>
+                        <span className="font-mono text-2xs">
+                          {d.lastStatusCode ?? '—'}
+                        </span>
+                      </TableCell>
+                      <TableCell>
+                        <span className="text-2xs text-carbon/70 line-clamp-2 max-w-md inline-block">
+                          {d.lastError ?? '—'}
+                        </span>
+                      </TableCell>
+                      <TableCell align="right">
+                        {canRetry && (
+                          <IconButton
+                            label={t('webhooks.deliveries.action.retry')}
+                            variant="default"
+                            icon={<ArrowClockwiseIcon weight="regular" />}
+                            disabled={retryMut.isPending}
+                            onClick={() => handleRetry(d.id)}
+                          />
+                        )}
+                      </TableCell>
+                    </TableRow>
+                  )
+                })}
               </TableBody>
             </Table>
           </Panel>