fix: stabilize usePaginationParams to prevent infinite re-render loop

allowedPageSizes array was recreated every render as a useMemo dep,
causing infinite updates. Use useRef to stabilize the reference.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/hooks/usePaginationParams.ts

@@ -1,5 +1,5 @@
 import { useSearchParams } from 'react-router-dom'
-import { useCallback, useMemo } from 'react'
+import { useCallback, useMemo, useRef } from 'react'
 
 type PageSize = number | 'all'
 
@@ -8,8 +8,15 @@ interface UsePaginationParamsOptions {
   allowedPageSizes?: PageSize[]
 }
 
+const DEFAULT_ALLOWED: PageSize[] = [10, 25, 50, 'all']
+
 export function usePaginationParams(options: UsePaginationParamsOptions = {}) {
-  const { defaultPageSize = 10, allowedPageSizes = [10, 25, 50, 'all'] } = options
+  const { defaultPageSize = 10, allowedPageSizes = DEFAULT_ALLOWED } = options
+
+  // Stabilize the array reference to avoid re-render loops
+  const allowedRef = useRef(allowedPageSizes)
+  allowedRef.current = allowedPageSizes
+
   const [searchParams, setSearchParams] = useSearchParams()
 
   const page = useMemo(() => {
@@ -20,11 +27,11 @@ export function usePaginationParams(options: UsePaginationParamsOptions = {}) {
 
   const pageSize = useMemo((): PageSize => {
     const raw = searchParams.get('size')
-    if (raw === 'all' && allowedPageSizes.includes('all')) return 'all'
+    if (raw === 'all' && allowedRef.current.includes('all')) return 'all'
     const n = raw ? parseInt(raw, 10) : defaultPageSize
-    if (Number.isFinite(n) && allowedPageSizes.includes(n)) return n
+    if (Number.isFinite(n) && allowedRef.current.includes(n)) return n
     return defaultPageSize
-  }, [searchParams, defaultPageSize, allowedPageSizes])
+  }, [searchParams, defaultPageSize])
 
   const setPage = useCallback(
     (newPage: number) => {