fix(admin-ui): Checkbox indeterminate stale state

ordinis-admin-ui/src/routes/dictionaries.$name.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useMemo, useState } from 'react'
+import { useEffect, useMemo, useRef, useState } from 'react'
 import { createFileRoute, Link, useNavigate } from '@tanstack/react-router'
 import { useTranslation } from 'react-i18next'
 import axios from 'axios'
@@ -288,6 +288,19 @@ function DictionaryDetail() {
   const someVisibleSelected =
     !allVisibleSelected && visibleKeys.some((k) => selection.has(k))
 
+  // Native checkbox indeterminate state — sync через useEffect, не callback ref.
+  // Callback ref срабатывает только на mount/unmount → state становится stale
+  // когда user toggle'ает selection per-row. useEffect re-runs на изменение
+  // someVisibleSelected. См. design handoff review #17 + Checkbox в @nstart/ui:
+  // ref forwarded к нативному <input>, но `indeterminate` это JS DOM-only prop
+  // (не HTML attribute), нужен manual sync.
+  const selectAllRef = useRef<HTMLInputElement>(null)
+  useEffect(() => {
+    if (selectAllRef.current) {
+      selectAllRef.current.indeterminate = someVisibleSelected
+    }
+  }, [someVisibleSelected])
+
   const toggleSelect = (key: string) => {
     setSelection((prev) => {
       const next = new Set(prev)
@@ -737,10 +750,7 @@ function DictionaryDetail() {
                         <Checkbox
                           aria-label={t('dict.bulk.selectAll')}
                           checked={allVisibleSelected}
-                          // Native checkbox indeterminate через ref — для partial select
-                          ref={(el) => {
-                            if (el) el.indeterminate = someVisibleSelected
-                          }}
+                          ref={selectAllRef}
                           onChange={toggleSelectAll}
                         />
                       </TableHeaderCell>