feat(ui): AsyncSelect — серверный поиск в дропдаунах вместо pageSize=500

Добавлен AsyncSelect в Field.tsx: дебаунс 300ms, fetch ?search=&pageSize=20,
поддержка onCreate, getLabel для кастомного отображения (path у групп товаров).

Переведены на AsyncSelect:
- SupplyEditPage: поставщик
- RetailSaleEditPage: покупатель
- ProductEditPage: группа товара
- ProductQuickCreateModal: группа товара

useLookups/useOrgInfra: pageSize 500→100 для малых справочников.

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

src/food-market.web/src/components/Field.tsx

@@ -3,8 +3,10 @@ import {
   type InputHTMLAttributes, type SelectHTMLAttributes, type ReactNode, type TextareaHTMLAttributes,
 } from 'react'
 import { createPortal } from 'react-dom'
+import { useQuery } from '@tanstack/react-query'
 import { ChevronDown } from 'lucide-react'
 import { cn } from '@/lib/utils'
+import { api } from '@/lib/api'
 import { useOrgSettings } from '@/lib/useOrgSettings'
 import { localizeNativeValidation } from '@/lib/validation'
 
@@ -275,6 +277,181 @@ export function Select({
   )
 }
 
+/** Select с серверным поиском: при каждом вводе дёргает endpoint с ?search=&pageSize=20.
+ * Не требует заранее загруженных опций — подходит для справочников с неограниченным ростом
+ * (контрагенты, группы товаров). API: value/onChange работают с ID строкой.
+ * getLabel — как извлечь отображаемый текст из пришедшего объекта (дефолт: item.name). */
+export function AsyncSelect({
+  url, value, onChange, placeholder, disabled, className, name: htmlName,
+  getLabel = (item: Record<string, unknown>) => String(item['name'] ?? ''),
+  onCreate, createLabel = 'Создать',
+}: {
+  url: string
+  value?: string | null
+  onChange: (value: string) => void
+  placeholder?: string
+  disabled?: boolean
+  className?: string
+  name?: string
+  getLabel?: (item: Record<string, unknown>) => string
+  onCreate?: (label: string) => Promise<string>
+  createLabel?: string
+}) {
+  const [open, setOpen] = useState(false)
+  const [query, setQuery] = useState('')
+  const [debouncedQuery, setDebouncedQuery] = useState('')
+  const [highlight, setHighlight] = useState(0)
+  const [selectedLabel, setSelectedLabel] = useState('')
+  const [creating, setCreating] = useState(false)
+  const [createError, setCreateError] = useState<string | null>(null)
+  const wrapRef = useRef<HTMLDivElement>(null)
+  const searchRef = useRef<HTMLInputElement>(null)
+  const dropdownRef = useRef<HTMLDivElement>(null)
+  const [pos, setPos] = useState<{ top: number; left: number; width: number; openUp: boolean } | null>(null)
+
+  useEffect(() => {
+    const t = setTimeout(() => setDebouncedQuery(query), 300)
+    return () => clearTimeout(t)
+  }, [query])
+
+  const { data: options = [], isFetching } = useQuery<Record<string, unknown>[]>({
+    queryKey: ['async-select', url, debouncedQuery],
+    queryFn: async () => {
+      const sep = url.includes('?') ? '&' : '?'
+      const res = await api.get<{ items: Record<string, unknown>[] }>(
+        `${url}${sep}search=${encodeURIComponent(debouncedQuery.trim())}&pageSize=20`,
+      )
+      return res.data.items
+    },
+    enabled: open,
+    staleTime: 30_000,
+    placeholderData: (prev) => prev,
+  })
+
+  useEffect(() => {
+    if (!value) { setSelectedLabel(''); return }
+    const found = options.find((o) => o['id'] === value)
+    if (found) setSelectedLabel(getLabel(found))
+  }, [options, value, getLabel])
+
+  const recomputePos = () => {
+    const el = wrapRef.current
+    if (!el) return
+    const r = el.getBoundingClientRect()
+    const spaceBelow = window.innerHeight - r.bottom
+    const openUp = spaceBelow < 240 && r.top > spaceBelow
+    setPos({ top: openUp ? r.top - 4 : r.bottom + 4, left: r.left, width: r.width, openUp })
+  }
+  useLayoutEffect(() => {
+    if (!open) return
+    recomputePos()
+    const fn = () => setOpen(false)
+    window.addEventListener('scroll', fn, true)
+    window.addEventListener('resize', fn)
+    return () => { window.removeEventListener('scroll', fn, true); window.removeEventListener('resize', fn) }
+  }, [open])
+
+  useEffect(() => {
+    if (!open) return
+    const onDoc = (e: MouseEvent) => {
+      const t = e.target as Node
+      if (!wrapRef.current?.contains(t) && !dropdownRef.current?.contains(t)) { setOpen(false); setQuery('') }
+    }
+    document.addEventListener('mousedown', onDoc)
+    return () => document.removeEventListener('mousedown', onDoc)
+  }, [open])
+
+  useEffect(() => { if (open) requestAnimationFrame(() => searchRef.current?.focus()) }, [open])
+  useEffect(() => { setHighlight(0) }, [query, open])
+
+  const choose = (id: string, label: string) => {
+    setOpen(false); setQuery(''); setCreateError(null)
+    setSelectedLabel(label); onChange(id)
+  }
+
+  const trimmed = query.trim()
+  const exactMatch = options.some((o) => getLabel(o).toLowerCase() === trimmed.toLowerCase())
+  const canCreate = !!onCreate && trimmed.length > 0 && !exactMatch
+
+  const handleCreate = async () => {
+    if (!onCreate || !trimmed) return
+    setCreating(true); setCreateError(null)
+    try { choose(await onCreate(trimmed), trimmed) }
+    catch (e) { setCreateError((e as Error).message || 'Не удалось создать') }
+    finally { setCreating(false) }
+  }
+
+  const triggerLabel = selectedLabel || (value ? '…' : (placeholder ?? '—'))
+
+  return (
+    <div ref={wrapRef} className="relative">
+      <button type="button" disabled={disabled} onClick={() => !disabled && setOpen((o) => !o)}
+        data-name={htmlName}
+        className={cn(inputClass, 'flex items-center justify-between text-left pr-9', className)}
+      >
+        <span className={cn('truncate', !selectedLabel && !value && 'text-slate-400')}>{triggerLabel}</span>
+        <ChevronDown className="absolute right-2 top-1/2 -translate-y-1/2 w-4 h-4 text-slate-400 pointer-events-none" />
+      </button>
+      {open && pos && createPortal(
+        <div ref={dropdownRef}
+          style={{ position: 'fixed', left: pos.left, width: pos.width, ...(pos.openUp ? { bottom: window.innerHeight - pos.top } : { top: pos.top }) }}
+          className="z-[100] max-h-72 overflow-hidden rounded-md border border-slate-200 dark:border-slate-700 bg-white dark:bg-slate-900 shadow-lg flex flex-col"
+        >
+          <div className="p-2 border-b border-slate-100 dark:border-slate-800">
+            <input ref={searchRef} value={query} onChange={(e) => setQuery(e.target.value)}
+              placeholder="Поиск…"
+              className="w-full h-8 rounded border border-slate-200 dark:border-slate-700 bg-white dark:bg-slate-900 px-2 text-sm focus:outline-none focus:ring-1 focus:ring-[var(--color-brand)]"
+              onKeyDown={(e) => {
+                if (e.key === 'Escape') { e.preventDefault(); setOpen(false); setQuery('') }
+                else if (e.key === 'ArrowDown') { e.preventDefault(); setHighlight((h) => Math.min(h + 1, Math.max(0, options.length - 1))) }
+                else if (e.key === 'ArrowUp') { e.preventDefault(); setHighlight((h) => Math.max(0, h - 1)) }
+                else if (e.key === 'Enter') {
+                  e.preventDefault()
+                  if (options.length === 0 && canCreate) { handleCreate(); return }
+                  const opt = options[highlight]
+                  if (opt) choose(String(opt['id'] ?? ''), getLabel(opt))
+                }
+              }}
+            />
+          </div>
+          <ul className="py-1 overflow-auto" role="listbox">
+            {isFetching ? (
+              <li className="px-3 py-2 text-sm text-slate-400">Загрузка…</li>
+            ) : options.length === 0 && !canCreate ? (
+              <li className="px-3 py-2 text-sm text-slate-400">Ничего не найдено</li>
+            ) : options.map((opt, i) => {
+              const id = String(opt['id'] ?? ''); const label = getLabel(opt)
+              return (
+                <li key={id}>
+                  <button type="button" onMouseEnter={() => setHighlight(i)} onClick={() => choose(id, label)}
+                    className={cn('w-full text-left px-3 py-1.5 text-sm block',
+                      i === highlight && 'bg-slate-100 dark:bg-slate-800',
+                      id === value && 'font-medium text-[var(--color-brand)]',
+                    )}
+                  >
+                    <span className="truncate block">{label}</span>
+                  </button>
+                </li>
+              )
+            })}
+            {canCreate && (
+              <li className="border-t border-slate-100 dark:border-slate-800 mt-1 pt-1">
+                <button type="button" disabled={creating} onClick={handleCreate}
+                  className="w-full text-left px-3 py-1.5 text-sm hover:bg-slate-100 dark:hover:bg-slate-800 text-[var(--color-brand)] disabled:opacity-60"
+                >
+                  {creating ? 'Создаю…' : `${createLabel} «${trimmed}»`}
+                </button>
+                {createError && <div className="px-3 py-1 text-xs text-red-600">{createError}</div>}
+              </li>
+            )}
+          </ul>
+        </div>,
+        document.body,
+      )}
+    </div>
+  )
+}
+
 interface MoneyInputProps {
   value: number | null | undefined
   onChange: (v: number | null) => void

src/food-market.web/src/components/ProductQuickCreateModal.tsx

@@ -3,8 +3,8 @@ import { useMutation } from '@tanstack/react-query'
 import { api } from '@/lib/api'
 import { Modal } from '@/components/Modal'
 import { Button } from '@/components/Button'
-import { Field, TextInput, Select } from '@/components/Field'
-import { useUnits, useProductGroups } from '@/lib/useLookups'
+import { Field, TextInput, Select, AsyncSelect } from '@/components/Field'
+import { useUnits } from '@/lib/useLookups'
 import { useOrgSettings } from '@/lib/useOrgSettings'
 import { BarcodeType, type Product } from '@/lib/types'
 import { generateEan13InternalPrefix2 } from '@/lib/barcode'
@@ -26,7 +26,6 @@ interface Props {
  * pre-fill'ятся из набранного запроса в зависимости от типа. */
 export function ProductQuickCreateModal({ open, onClose, prefill, onCreated }: Props) {
   const units = useUnits()
-  const groups = useProductGroups()
   const org = useOrgSettings()
 
   const [name, setName] = useState('')
@@ -67,11 +66,7 @@ export function ProductQuickCreateModal({ open, onClose, prefill, onCreated }: P
       const sht = units.data.find((u) => u.code === '796') ?? units.data[0]
       setUnitId(sht.id)
     }
-    if (!groupId && groups.data?.length) {
-      const food = groups.data.find((g) => g.name === 'Продукты питания') ?? groups.data[0]
-      setGroupId(food.id)
-    }
-  }, [open, units.data, groups.data, unitId, groupId])
+  }, [open, units.data, unitId])
 
   const create = useMutation({
     mutationFn: async () => {
@@ -134,9 +129,13 @@ export function ProductQuickCreateModal({ open, onClose, prefill, onCreated }: P
         </div>
         <div className="grid grid-cols-2 gap-3">
           <Field label="Группа *">
-            <Select value={groupId} onChange={(e) => setGroupId(e.target.value)}>
-              {groups.data?.map((g) => <option key={g.id} value={g.id}>{g.path}</option>)}
-            </Select>
+            <AsyncSelect
+              url="/api/catalog/product-groups"
+              value={groupId}
+              onChange={setGroupId}
+              placeholder="Выберите группу…"
+              getLabel={(item) => String(item['path'] ?? item['name'] ?? '')}
+            />
           </Field>
           <Field label="Единица измерения *">
             <Select value={unitId} onChange={(e) => setUnitId(e.target.value)}>

src/food-market.web/src/lib/useLookups.ts

@@ -8,7 +8,7 @@ import type {
 function useLookup<T>(key: string, url: string) {
   return useQuery({
     queryKey: [`lookup:${key}`],
-    queryFn: async () => (await api.get<PagedResult<T>>(`${url}?pageSize=500`)).data.items,
+    queryFn: async () => (await api.get<PagedResult<T>>(`${url}?pageSize=100`)).data.items,
     // staleTime=0 + refetchOnMount: 'always' гарантируют что любая страница
     // (например ProductEditPage), монтирующая usePriceTypes / useUnits / etc,
     // сразу подтянет свежий снапшот справочника после правки в его UI —

src/food-market.web/src/lib/useOrgInfra.ts

@@ -12,7 +12,7 @@ export function useOrgInfra() {
   const cashRegisters = useQuery({
     queryKey: ['lookup:retail-points'],
     queryFn: async () =>
-      (await api.get<PagedResult<RetailPoint>>('/api/catalog/retail-points?pageSize=500')).data.items,
+      (await api.get<PagedResult<RetailPoint>>('/api/catalog/retail-points?pageSize=100')).data.items,
     staleTime: 0,
     refetchOnMount: 'always',
     refetchOnWindowFocus: true,

src/food-market.web/src/pages/ProductEditPage.tsx

@@ -4,9 +4,9 @@ import { useQuery, useQueryClient, useMutation } from '@tanstack/react-query'
 import { ArrowLeft, Plus, Trash2, Save } from 'lucide-react'
 import { api } from '@/lib/api'
 import { Button } from '@/components/Button'
-import { Field, TextInput, TextArea, Select, Checkbox, MoneyInput, NumberInput } from '@/components/Field'
+import { Field, TextInput, TextArea, Select, AsyncSelect, Checkbox, MoneyInput, NumberInput } from '@/components/Field'
 import {
-  useUnits, useProductGroups, useCountries, useCurrencies, usePriceTypes,
+  useUnits, useCountries, useCurrencies, usePriceTypes,
 } from '@/lib/useLookups'
 import { useOrgSettings } from '@/lib/useOrgSettings'
 import { BarcodeType, Packaging, type Product } from '@/lib/types'
@@ -57,7 +57,6 @@ export function ProductEditPage() {
   const qc = useQueryClient()
 
   const units = useUnits()
-  const groups = useProductGroups()
   const countries = useCountries()
   const currencies = useCurrencies()
   const priceTypes = usePriceTypes()
@@ -99,11 +98,7 @@ export function ProductEditPage() {
       const sht = units.data.find((u) => u.code === '796') ?? units.data[0]
       setForm((f) => ({ ...f, unitOfMeasureId: sht.id }))
     }
-    if (isNew && form.productGroupId === '' && groups.data?.length) {
-      // Дефолт — «Продукты питания», иначе первая.
-      const food = groups.data.find((g) => g.name === 'Продукты питания') ?? groups.data[0]
-      setForm((f) => ({ ...f, productGroupId: food.id }))
-    }
+
     if (isNew && form.purchaseCurrencyId === '' && currencies.data?.length) {
       const def = org.data?.defaultCurrencyId
         ? currencies.data?.find(c => c.id === org.data!.defaultCurrencyId)
@@ -129,7 +124,7 @@ export function ProductEditPage() {
         barcodes: [{ code: generateEan13InternalPrefix2(), type: BarcodeType.Ean13, isPrimary: true }],
       }))
     }
-  }, [isNew, units.data, groups.data, currencies.data, org.data, form.unitOfMeasureId, form.productGroupId, form.purchaseCurrencyId, form.vat, form.article, form.barcodes.length])
+  }, [isNew, units.data, currencies.data, org.data, form.unitOfMeasureId, form.purchaseCurrencyId, form.vat, form.article, form.barcodes.length])
 
   const save = useMutation({
     mutationFn: async () => {
@@ -448,9 +443,13 @@ export function ProductEditPage() {
           <Section title="Классификация">
             <Grid cols={3}>
               <Field label="Группа *">
-                <Select required value={form.productGroupId} onChange={(e) => setForm({ ...form, productGroupId: e.target.value })}>
-                  {groups.data?.map((g) => <option key={g.id} value={g.id}>{g.path}</option>)}
-                </Select>
+                <AsyncSelect
+                  url="/api/catalog/product-groups"
+                  value={form.productGroupId}
+                  onChange={(v) => setForm({ ...form, productGroupId: v })}
+                  placeholder="Выберите группу…"
+                  getLabel={(item) => String(item['path'] ?? item['name'] ?? '')}
+                />
               </Field>
               <Field label="Единица измерения *">
                 <Select required value={form.unitOfMeasureId} onChange={(e) => setForm({ ...form, unitOfMeasureId: e.target.value })}>

src/food-market.web/src/pages/RetailSaleEditPage.tsx

@@ -4,9 +4,9 @@ import { useQuery, useQueryClient, useMutation } from '@tanstack/react-query'
 import { ArrowLeft, Plus, Trash2, Save, CheckCircle, Undo2 } from 'lucide-react'
 import { api } from '@/lib/api'
 import { Button } from '@/components/Button'
-import { Field, TextInput, TextArea, Select, MoneyInput, NumberInput } from '@/components/Field'
+import { Field, TextInput, TextArea, Select, AsyncSelect, MoneyInput, NumberInput } from '@/components/Field'
 import { ProductPicker } from '@/components/ProductPicker'
-import { useStores, useCurrencies, useSuppliers } from '@/lib/useLookups'
+import { useStores, useCurrencies } from '@/lib/useLookups'
 import { useOrgSettings } from '@/lib/useOrgSettings'
 import { RetailSaleStatus, PaymentMethod, type RetailSaleDto, type Product } from '@/lib/types'
 
@@ -53,7 +53,6 @@ export function RetailSaleEditPage() {
   const stores = useStores()
   const currencies = useCurrencies()
   const org = useOrgSettings()
-  const customers = useSuppliers() // we re-use the suppliers hook (returns all counterparties) — fine for MVP
 
   const [form, setForm] = useState<Form>(empty)
   const [pickerOpen, setPickerOpen] = useState(false)
@@ -268,11 +267,13 @@ export function RetailSaleEditPage() {
                 </Field>
               )}
               <Field label="Покупатель (опц.)">
-                <Select value={form.customerId} disabled={isPosted}
-                  onChange={(e) => setForm({ ...form, customerId: e.target.value })}>
-                  <option value="">— анонимный —</option>
-                  {customers.data?.map((c) => <option key={c.id} value={c.id}>{c.name}</option>)}
-                </Select>
+                <AsyncSelect
+                  url="/api/catalog/counterparties"
+                  value={form.customerId}
+                  disabled={isPosted}
+                  onChange={(v) => setForm({ ...form, customerId: v })}
+                  placeholder="— анонимный —"
+                />
               </Field>
               <Field label="Способ оплаты">
                 <Select value={form.payment} disabled={isPosted}

src/food-market.web/src/pages/SupplyEditPage.tsx

@@ -4,11 +4,11 @@ import { useQuery, useQueryClient, useMutation } from '@tanstack/react-query'
 import { ArrowLeft, Plus, Trash2, Save, CheckCircle } from 'lucide-react'
 import { api } from '@/lib/api'
 import { Button } from '@/components/Button'
-import { Field, TextArea, Select, Checkbox, MoneyInput, NumberInput } from '@/components/Field'
+import { Field, TextArea, Select, AsyncSelect, Checkbox, MoneyInput, NumberInput } from '@/components/Field'
 import { DateField } from '@/components/DateField'
 import { ProductPicker } from '@/components/ProductPicker'
 import { SupplyLineQuickAdd, type AddedProduct } from '@/components/SupplyLineQuickAdd'
-import { useStores, useCurrencies, useSuppliers, usePriceTypes } from '@/lib/useLookups'
+import { useStores, useCurrencies, usePriceTypes } from '@/lib/useLookups'
 import { useOrgSettings } from '@/lib/useOrgSettings'
 import { SupplyStatus, type SupplyDto, type Product } from '@/lib/types'
 
@@ -63,7 +63,6 @@ export function SupplyEditPage() {
   const stores = useStores()
   const currencies = useCurrencies()
   const org = useOrgSettings()
-  const suppliers = useSuppliers()
   const priceTypes = usePriceTypes()
   // Системный (главный) тип цен — на нём по умолчанию ведётся розница на кассе.
   // Заголовок колонки «Розничная» подменяется его именем чтобы соответствовать
@@ -131,11 +130,8 @@ export function SupplyEditPage() {
           : currencies.data.find((c) => c.code === 'KZT')
         if (def) setForm((f) => ({ ...f, currencyId: def.id }))
       }
-      if (!form.supplierId && suppliers.data?.length) {
-        setForm((f) => ({ ...f, supplierId: suppliers.data![0].id }))
     }
-    }
-  }, [isNew, stores.data, currencies.data, suppliers.data, org.data?.defaultCurrencyId, form.storeId, form.currencyId, form.supplierId])
+  }, [isNew, stores.data, currencies.data, org.data?.defaultCurrencyId, form.storeId, form.currencyId])
 
   const isDraft = isNew || existing.data?.status === SupplyStatus.Draft
   const isPosted = existing.data?.status === SupplyStatus.Posted
@@ -312,27 +308,23 @@ export function SupplyEditPage() {
                   onChange={(iso) => setForm({ ...form, date: iso ?? '' })} />
               </Field>
               <Field label="Поставщик *">
-                <Select
+                <AsyncSelect
+                  url="/api/catalog/counterparties"
                   value={form.supplierId}
                   disabled={isPosted}
-                  onChange={(e) => setForm({ ...form, supplierId: e.target.value })}
+                  onChange={(v) => setForm({ ...form, supplierId: v })}
+                  placeholder="Выберите поставщика…"
                   createLabel="Создать поставщика"
                   onCreate={async (name) => {
-                    // Быстрое создание — только Name + Type=LegalEntity, остальное
-                    // редактируется потом в справочнике контрагентов.
                     const created = await api.post<{ id: string }>('/api/catalog/counterparties', {
                       name, legalName: null, type: 1,
                       bin: null, iin: null, taxNumber: null, countryId: null,
                       address: null, phone: null, email: null,
                       bankName: null, bankAccount: null, bik: null, contactPerson: null, notes: null,
                     })
-                    await qc.invalidateQueries({ queryKey: ['lookup:counterparties'] })
                     return created.data.id
                   }}
-                >
-                  <option value="">—</option>
-                  {suppliers.data?.map((c) => <option key={c.id} value={c.id}>{c.name}</option>)}
-                </Select>
+                />
               </Field>
               {(stores.data?.length ?? 0) > 1 && (
                 <Field label="Склад *">