diff --git a/client/src/pages/admin-products/ui/AdminProductsPage.tsx b/client/src/pages/admin-products/ui/AdminProductsPage.tsx
index 8037f68..ac71b31 100644
--- a/client/src/pages/admin-products/ui/AdminProductsPage.tsx
+++ b/client/src/pages/admin-products/ui/AdminProductsPage.tsx
@@ -127,12 +127,13 @@ export function AdminProductsPage() {
     mutationFn: async () => {
       const form = productForm.getValues()
       const priceCents = Math.round(Number(form.priceRub.replace(',', '.')) * 100)
-      if (!Number.isFinite(priceCents) || priceCents < 0) throw new Error('Некорректная цена')
+      if (!Number.isFinite(priceCents) || priceCents <= 0) throw new Error('Цена должна быть больше 0')
+      if (priceCents > 10_000_00) throw new Error('Цена не может превышать 10 000 ₽')
       if (!form.categoryId) throw new Error('Выберите категорию')
       const qty = form.quantity.trim()
       if (!qty) throw new Error('Укажите количество')
       const qtyNum = Number(qty)
-      if (!Number.isFinite(qtyNum) || qtyNum < 0) throw new Error('Некорректное количество')
+      if (!Number.isInteger(qtyNum) || qtyNum < 0 || qtyNum > 10) throw new Error('Количество — целое число от 0 до 10')
       const materials = form.materials
         .split(',')
         .map((x) => x.trim())
@@ -160,12 +161,13 @@ export function AdminProductsPage() {
     mutationFn: async () => {
       const form = productForm.getValues()
       const priceCents = Math.round(Number(form.priceRub.replace(',', '.')) * 100)
-      if (!Number.isFinite(priceCents) || priceCents < 0) throw new Error('Некорректная цена')
+      if (!Number.isFinite(priceCents) || priceCents <= 0) throw new Error('Цена должна быть больше 0')
+      if (priceCents > 10_000_00) throw new Error('Цена не может превышать 10 000 ₽')
       if (!form.categoryId) throw new Error('Выберите категорию')
       const qty = form.quantity.trim()
       if (!qty) throw new Error('Укажите количество')
       const qtyNum = Number(qty)
-      if (!Number.isFinite(qtyNum) || qtyNum < 0) throw new Error('Некорректное количество')
+      if (!Number.isInteger(qtyNum) || qtyNum < 0 || qtyNum > 10) throw new Error('Количество — целое число от 0 до 10')
       const materials = form.materials
         .split(',')
         .map((x) => x.trim())
@@ -347,14 +349,55 @@ export function AdminProductsPage() {
             <Controller
               control={productForm.control}
               name="quantity"
-              render={({ field }) => (
-                <TextField label="Количество" fullWidth {...field} inputMode="numeric" helperText="0 = нет в наличии" />
+              rules={{
+                validate: (v) => {
+                  const n = Number(v)
+                  if (!Number.isInteger(n) || n < 0 || n > 10) return 'Целое число от 0 до 10'
+                  return true
+                },
+              }}
+              render={({ field, fieldState }) => (
+                <TextField
+                  label="Количество"
+                  fullWidth
+                  {...field}
+                  inputMode="numeric"
+                  onChange={(e) => {
+                    const v = e.target.value.replace(/[^0-9]/g, '')
+                    field.onChange(v)
+                  }}
+                  helperText={fieldState.error?.message ?? '0 = нет в наличии'}
+                  error={!!fieldState.error}
+                />
               )}
             />
             <Controller
               control={productForm.control}
               name="priceRub"
-              render={({ field }) => <TextField label="Цена, ₽" fullWidth {...field} />}
+              rules={{
+                required: 'Укажите цену',
+                validate: (v) => {
+                  const n = Number(v.replace(',', '.'))
+                  if (!Number.isFinite(n) || n <= 0) return 'Цена должна быть больше 0'
+                  if (n > 10_000) return 'Цена не может превышать 10 000 ₽'
+                  if (!Number.isInteger(Math.round(n * 100))) return 'Не более 2 знаков после запятой'
+                  return true
+                },
+              }}
+              render={({ field, fieldState }) => (
+                <TextField
+                  label="Цена, ₽"
+                  fullWidth
+                  {...field}
+                  inputMode="decimal"
+                  onChange={(e) => {
+                    const v = e.target.value.replace(/[^0-9.,]/g, '')
+                    field.onChange(v)
+                  }}
+                  helperText={fieldState.error?.message}
+                  error={!!fieldState.error}
+                />
+              )}
             />
             <Box>
               <Typography variant="subtitle2" sx={{ mb: 0.5 }}>
@@ -486,6 +529,8 @@ export function AdminProductsPage() {
               !titleValue.trim() ||
               !productForm.watch('categoryId') ||
               !productForm.watch('quantity').trim() ||
+              !productForm.watch('priceRub').trim() ||
+              !productForm.formState.isValid ||
               createMut.isPending ||
               updateMut.isPending
             }
diff --git a/client/src/pages/admin/index.ts b/client/src/pages/admin/index.ts
deleted file mode 100644
index 7f56083..0000000
--- a/client/src/pages/admin/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export { AdminPage } from './ui/AdminPage'
diff --git a/client/src/pages/admin/ui/AdminPage.tsx b/client/src/pages/admin/ui/AdminPage.tsx
deleted file mode 100644
index 18bb99d..0000000
--- a/client/src/pages/admin/ui/AdminPage.tsx
+++ /dev/null
@@ -1,860 +0,0 @@
-import { useRef, useState } from 'react'
-import Alert from '@mui/material/Alert'
-import Box from '@mui/material/Box'
-import Button from '@mui/material/Button'
-import Checkbox from '@mui/material/Checkbox'
-import Dialog from '@mui/material/Dialog'
-import DialogActions from '@mui/material/DialogActions'
-import DialogContent from '@mui/material/DialogContent'
-import DialogTitle from '@mui/material/DialogTitle'
-import FormControl from '@mui/material/FormControl'
-import FormControlLabel from '@mui/material/FormControlLabel'
-import FormHelperText from '@mui/material/FormHelperText'
-import InputLabel from '@mui/material/InputLabel'
-import MenuItem from '@mui/material/MenuItem'
-import Select from '@mui/material/Select'
-import Stack from '@mui/material/Stack'
-import Switch from '@mui/material/Switch'
-import Table from '@mui/material/Table'
-import TableBody from '@mui/material/TableBody'
-import TableCell from '@mui/material/TableCell'
-import TableHead from '@mui/material/TableHead'
-import TableRow from '@mui/material/TableRow'
-import TextField from '@mui/material/TextField'
-import ToggleButton from '@mui/material/ToggleButton'
-import ToggleButtonGroup from '@mui/material/ToggleButtonGroup'
-import Typography from '@mui/material/Typography'
-import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query'
-import { Controller, useForm } from 'react-hook-form'
-import { fetchAdminGallery } from '@/entities/gallery'
-import {
-  createCategory,
-  createProduct,
-  deleteAdminCategory,
-  deleteProduct,
-  fetchAdminCategories,
-  fetchAdminProducts,
-  fetchCategories,
-  updateAdminCategory,
-  updateProduct,
-  uploadAdminProductImages,
-} from '@/entities/product/api/product-api'
-import type { Category, Product } from '@/entities/product/model/types'
-import { formatAdminImageMaxSizeHint } from '@/shared/constants/upload-limits'
-import { formatPriceRub } from '@/shared/lib/format-price'
-import { getErrorMessage } from '@/shared/lib/get-error-message'
-import { invalidateQueryKeys } from '@/shared/lib/invalidate-query-keys'
-import { useEditDialogState } from '@/shared/lib/use-edit-dialog-state'
-import { EntityRowActions } from '@/shared/ui/EntityRowActions'
-import { OptimizedImage } from '@/shared/ui/OptimizedImage'
-
-const UNSPECIFIED_CATEGORY_SLUG = 'ne-ukazano'
-
-type FormState = {
-  title: string
-  slug: string
-  shortDescription: string
-  description: string
-  quantity: string
-  materials: string
-  priceRub: string
-  imageUrls: string[]
-  published: boolean
-  categoryId: string
-}
-
-const emptyForm = (): FormState => ({
-  title: '',
-  slug: '',
-  shortDescription: '',
-  description: '',
-  quantity: '0',
-  materials: '',
-  priceRub: '',
-  imageUrls: [],
-  published: true,
-  categoryId: '',
-})
-
-export function AdminPage() {
-  const queryClient = useQueryClient()
-  const { dialogOpen, editing, openCreateDialog, openEditDialog, closeDialog } = useEditDialogState<Product>()
-  const [adminSection, setAdminSection] = useState<'products' | 'categories'>('products')
-  const [catOpen, setCatOpen] = useState(false)
-  const [categoryEditOpen, setCategoryEditOpen] = useState(false)
-  const [editingCategory, setEditingCategory] = useState<Category | null>(null)
-  const [categoryDeleteTarget, setCategoryDeleteTarget] = useState<Category | null>(null)
-  const [galleryPickOpen, setGalleryPickOpen] = useState(false)
-  const [gallerySelectedUrls, setGallerySelectedUrls] = useState<Set<string>>(() => new Set())
-
-  const productForm = useForm<FormState>({
-    defaultValues: emptyForm(),
-    mode: 'onChange',
-  })
-
-  const categoryForm = useForm<{ name: string; slug: string }>({
-    defaultValues: { name: '', slug: '' },
-    mode: 'onChange',
-  })
-
-  const titleValue = productForm.watch('title')
-
-  const categoriesQuery = useQuery({
-    queryKey: ['categories'],
-    queryFn: () => fetchCategories(),
-  })
-
-  const productsQuery = useQuery({
-    queryKey: ['admin', 'products'],
-    queryFn: fetchAdminProducts,
-  })
-
-  const galleryForPickQuery = useQuery({
-    queryKey: ['admin', 'gallery'],
-    queryFn: fetchAdminGallery,
-    enabled: galleryPickOpen,
-  })
-
-  const adminCategoriesQuery = useQuery({
-    queryKey: ['admin', 'categories'],
-    queryFn: fetchAdminCategories,
-    enabled: adminSection === 'categories',
-  })
-
-  const categoryEditForm = useForm<{ name: string; slug: string; sort: string }>({
-    defaultValues: { name: '', slug: '', sort: '0' },
-    mode: 'onChange',
-  })
-
-  const openCreate = () => {
-    productForm.reset(emptyForm())
-    openCreateDialog()
-  }
-
-  const openEdit = (p: Product) => {
-    openEditDialog(p)
-    const urls =
-      (p.images ?? [])
-        .slice()
-        .sort((a, b) => a.sort - b.sort)
-        .map((x) => x.url) ?? (p.imageUrl ? [p.imageUrl] : [])
-    productForm.reset({
-      title: p.title,
-      slug: p.slug,
-      shortDescription: p.shortDescription ?? '',
-      description: p.description ?? '',
-      quantity: String(p.quantity),
-      materials: (p.materials ?? []).join(', '),
-      priceRub: String(p.priceCents / 100),
-      imageUrls: urls,
-      published: p.published,
-      categoryId: p.categoryId,
-    })
-  }
-
-  const createMut = useMutation({
-    mutationFn: async () => {
-      const form = productForm.getValues()
-      const priceCents = Math.round(Number(form.priceRub.replace(',', '.')) * 100)
-      if (!Number.isFinite(priceCents) || priceCents < 0) throw new Error('Некорректная цена')
-      if (!form.categoryId) throw new Error('Выберите категорию')
-      const qty = form.quantity.trim()
-      if (!qty) throw new Error('Укажите количество')
-      const qtyNum = Number(qty)
-      if (!Number.isFinite(qtyNum) || qtyNum < 0) throw new Error('Некорректное количество')
-      const materials = form.materials
-        .split(',')
-        .map((x) => x.trim())
-        .filter(Boolean)
-      await createProduct({
-        title: form.title.trim(),
-        slug: form.slug.trim() || undefined,
-        shortDescription: form.shortDescription.trim() || null,
-        description: form.description.trim() || null,
-        quantity: Math.floor(qtyNum),
-        materials,
-        priceCents,
-        imageUrls: form.imageUrls,
-        published: form.published,
-        categoryId: form.categoryId,
-      })
-    },
-    onSuccess: () => {
-      void invalidateQueryKeys(queryClient, [['admin', 'products'], ['products']])
-      closeDialog()
-    },
-  })
-
-  const updateMut = useMutation({
-    mutationFn: async () => {
-      const form = productForm.getValues()
-      const priceCents = Math.round(Number(form.priceRub.replace(',', '.')) * 100)
-      if (!Number.isFinite(priceCents) || priceCents < 0) throw new Error('Некорректная цена')
-      if (!form.categoryId) throw new Error('Выберите категорию')
-      const qty = form.quantity.trim()
-      if (!qty) throw new Error('Укажите количество')
-      const qtyNum = Number(qty)
-      if (!Number.isFinite(qtyNum) || qtyNum < 0) throw new Error('Некорректное количество')
-      const materials = form.materials
-        .split(',')
-        .map((x) => x.trim())
-        .filter(Boolean)
-      await updateProduct(editing!.id, {
-        title: form.title.trim(),
-        slug: form.slug.trim(),
-        shortDescription: form.shortDescription.trim() || null,
-        description: form.description.trim() || null,
-        quantity: Math.floor(qtyNum),
-        materials,
-        priceCents,
-        imageUrls: form.imageUrls,
-        published: form.published,
-        categoryId: form.categoryId,
-      })
-    },
-    onSuccess: () => {
-      void invalidateQueryKeys(queryClient, [['admin', 'products'], ['products']])
-      closeDialog()
-    },
-  })
-
-  const deleteMut = useMutation({
-    mutationFn: (id: string) => deleteProduct(id),
-    onSuccess: () => {
-      void invalidateQueryKeys(queryClient, [['admin', 'products'], ['products']])
-    },
-  })
-
-  const createCategoryMut = useMutation({
-    mutationFn: () => {
-      const v = categoryForm.getValues()
-      return createCategory({
-        name: v.name.trim(),
-        slug: v.slug.trim() || undefined,
-      })
-    },
-    onSuccess: () => {
-      void invalidateQueryKeys(queryClient, [['categories'], ['admin', 'categories']])
-      setCatOpen(false)
-      categoryForm.reset({ name: '', slug: '' })
-    },
-  })
-
-  const updateCategoryMut = useMutation({
-    mutationFn: async () => {
-      if (!editingCategory) return
-      const v = categoryEditForm.getValues()
-      const payload: { name: string; slug?: string; sort: number } = {
-        name: v.name.trim(),
-        sort: Number(v.sort),
-      }
-      if (!Number.isFinite(payload.sort)) throw new Error('Некорректный порядок sort')
-      if (editingCategory.slug !== UNSPECIFIED_CATEGORY_SLUG) {
-        payload.slug = v.slug.trim()
-      }
-      return updateAdminCategory(editingCategory.id, payload)
-    },
-    onSuccess: () => {
-      void invalidateQueryKeys(queryClient, [['categories'], ['admin', 'categories'], ['admin', 'products']])
-      setCategoryEditOpen(false)
-      setEditingCategory(null)
-    },
-  })
-
-  const deleteCategoryMut = useMutation({
-    mutationFn: (id: string) => deleteAdminCategory(id),
-    onSuccess: () => {
-      void invalidateQueryKeys(queryClient, [['categories'], ['admin', 'categories'], ['admin', 'products']])
-      setCategoryDeleteTarget(null)
-    },
-  })
-
-  const handleSubmit = () => {
-    if (editing) updateMut.mutate()
-    else createMut.mutate()
-  }
-
-  const productImagesInputRef = useRef<HTMLInputElement>(null)
-
-  const uploadImagesMut = useMutation({
-    mutationFn: (picked: File[]) => uploadAdminProductImages(picked),
-    onSuccess: (urls) => {
-      const current = productForm.getValues('imageUrls')
-      productForm.setValue('imageUrls', [...current, ...urls], { shouldDirty: true })
-      if (productImagesInputRef.current) {
-        productImagesInputRef.current.value = ''
-      }
-    },
-  })
-
-  const mutationError =
-    createMut.error ??
-    updateMut.error ??
-    deleteMut.error ??
-    createCategoryMut.error ??
-    updateCategoryMut.error ??
-    deleteCategoryMut.error ??
-    uploadImagesMut.error
-
-  const openCategoryEdit = (c: Category) => {
-    setEditingCategory(c)
-    categoryEditForm.reset({
-      name: c.name,
-      slug: c.slug,
-      sort: String(c.sort),
-    })
-    setCategoryEditOpen(true)
-  }
-
-  const removeImage = (url: string) => {
-    const current = productForm.getValues('imageUrls')
-    productForm.setValue(
-      'imageUrls',
-      current.filter((u) => u !== url),
-      { shouldDirty: true },
-    )
-  }
-
-  const toggleGalleryPickUrl = (url: string) => {
-    setGallerySelectedUrls((prev) => {
-      const next = new Set(prev)
-      if (next.has(url)) {
-        next.delete(url)
-      } else {
-        next.add(url)
-      }
-      return next
-    })
-  }
-
-  const appendGalleryUrlsToForm = () => {
-    const current = productForm.getValues('imageUrls')
-    const merged = [...current]
-    for (const url of gallerySelectedUrls) {
-      if (!merged.includes(url)) {
-        merged.push(url)
-      }
-    }
-    productForm.setValue('imageUrls', merged, { shouldDirty: true })
-    setGalleryPickOpen(false)
-    setGallerySelectedUrls(new Set())
-  }
-
-  return (
-    <Box>
-      <Typography variant="h4" gutterBottom>
-        Админка
-      </Typography>
-      <Typography variant="body2" color="text.secondary" sx={{ mb: 2 }}>
-        Управление товарами и категориями. Доступно пользователю с правами администратора.
-      </Typography>
-
-      <ToggleButtonGroup
-        exclusive
-        value={adminSection}
-        onChange={(_, v) => {
-          if (v === 'products' || v === 'categories') setAdminSection(v)
-        }}
-        size="small"
-        sx={{ mb: 2 }}
-      >
-        <ToggleButton value="products">Товары</ToggleButton>
-        <ToggleButton value="categories">Категории</ToggleButton>
-      </ToggleButtonGroup>
-
-      {adminSection === 'products' && (
-        <Stack direction="row" spacing={2} sx={{ mb: 2 }}>
-          <Button variant="contained" onClick={openCreate}>
-            Новый товар
-          </Button>
-        </Stack>
-      )}
-
-      {adminSection === 'categories' && (
-        <Stack direction="row" spacing={2} sx={{ mb: 2 }}>
-          <Button variant="contained" onClick={() => setCatOpen(true)}>
-            Новая категория
-          </Button>
-        </Stack>
-      )}
-
-      {adminSection === 'products' && productsQuery.isError && (
-        <Alert severity="error" sx={{ mb: 2 }}>
-          Ошибка загрузки. Проверьте, что сервер запущен, и у вас есть права администратора.
-        </Alert>
-      )}
-
-      {mutationError && (
-        <Alert severity="error" sx={{ mb: 2 }}>
-          {getErrorMessage(mutationError)}
-        </Alert>
-      )}
-
-      {adminSection === 'products' && (
-        <Table size="small">
-          <TableHead>
-            <TableRow>
-              <TableCell>Название</TableCell>
-              <TableCell>Категория</TableCell>
-              <TableCell>Цена</TableCell>
-              <TableCell>Витрина</TableCell>
-              <TableCell align="right">Действия</TableCell>
-            </TableRow>
-          </TableHead>
-          <TableBody>
-            {(productsQuery.data ?? []).map((p) => (
-              <TableRow key={p.id} hover>
-                <TableCell>{p.title}</TableCell>
-                <TableCell>{p.category?.name ?? '—'}</TableCell>
-                <TableCell>{formatPriceRub(p.priceCents)}</TableCell>
-                <TableCell>{p.published ? 'да' : 'нет'}</TableCell>
-                <TableCell align="right">
-                  <EntityRowActions onEdit={() => openEdit(p)} onDelete={() => deleteMut.mutate(p.id)} />
-                </TableCell>
-              </TableRow>
-            ))}
-          </TableBody>
-        </Table>
-      )}
-
-      {adminSection === 'categories' && (
-        <>
-          {adminCategoriesQuery.isError && (
-            <Alert severity="error" sx={{ mb: 2 }}>
-              Не удалось загрузить категории.
-            </Alert>
-          )}
-          <Table size="small">
-            <TableHead>
-              <TableRow>
-                <TableCell>Название</TableCell>
-                <TableCell>Slug</TableCell>
-                <TableCell>Порядок</TableCell>
-                <TableCell align="right">Действия</TableCell>
-              </TableRow>
-            </TableHead>
-            <TableBody>
-              {(adminCategoriesQuery.data ?? []).map((c) => (
-                <TableRow key={c.id} hover>
-                  <TableCell>{c.name}</TableCell>
-                  <TableCell>{c.slug}</TableCell>
-                  <TableCell>{c.sort}</TableCell>
-                  <TableCell align="right">
-                    <EntityRowActions
-                      onEdit={() => openCategoryEdit(c)}
-                      onDelete={c.slug === UNSPECIFIED_CATEGORY_SLUG ? undefined : () => setCategoryDeleteTarget(c)}
-                    />
-                  </TableCell>
-                </TableRow>
-              ))}
-            </TableBody>
-          </Table>
-        </>
-      )}
-
-      <Dialog open={dialogOpen} onClose={closeDialog} fullWidth maxWidth="sm">
-        <DialogTitle>{editing ? 'Редактировать товар' : 'Новый товар'}</DialogTitle>
-        <DialogContent>
-          <Stack spacing={2} sx={{ mt: 1 }}>
-            <Controller
-              control={productForm.control}
-              name="title"
-              render={({ field }) => <TextField label="Название" fullWidth required {...field} />}
-            />
-            <Controller
-              control={productForm.control}
-              name="slug"
-              render={({ field }) => (
-                <TextField
-                  label="Slug (URL)"
-                  fullWidth
-                  {...field}
-                  helperText="Можно оставить пустым при создании — сгенерируется из названия"
-                />
-              )}
-            />
-            <Controller
-              control={productForm.control}
-              name="shortDescription"
-              render={({ field }) => (
-                <TextField label="Краткое описание (для каталога)" fullWidth multiline minRows={2} {...field} />
-              )}
-            />
-            <Controller
-              control={productForm.control}
-              name="description"
-              render={({ field }) => <TextField label="Описание" fullWidth multiline minRows={2} {...field} />}
-            />
-            <Controller
-              control={productForm.control}
-              name="materials"
-              render={({ field }) => (
-                <TextField
-                  label="Материалы"
-                  fullWidth
-                  {...field}
-                  helperText="Список через запятую (например: хлопок, дерево, акрил)"
-                />
-              )}
-            />
-            <Controller
-              control={productForm.control}
-              name="quantity"
-              render={({ field }) => (
-                <TextField label="Количество" fullWidth {...field} inputMode="numeric" helperText="0 = нет в наличии" />
-              )}
-            />
-            <Controller
-              control={productForm.control}
-              name="priceRub"
-              render={({ field }) => <TextField label="Цена, ₽" fullWidth {...field} />}
-            />
-            <Box>
-              <Typography variant="subtitle2" sx={{ mb: 0.5 }}>
-                Фото (загрузка)
-              </Typography>
-              <FormHelperText sx={{ mt: 0, mb: 1 }}>
-                PNG, JPEG или WebP, до {formatAdminImageMaxSizeHint()} на файл. Крестик на превью убирает фото только из
-                карточки; файл остаётся на сервере и в галерее.
-              </FormHelperText>
-              <Box
-                sx={{
-                  display: 'flex',
-                  gap: 2,
-                  alignItems: { sm: 'center' },
-                  flexDirection: { xs: 'column', sm: 'row' },
-                  flexWrap: 'wrap',
-                }}
-              >
-                <Button component="label" variant="outlined" disabled={uploadImagesMut.isPending}>
-                  Выбрать файлы
-                  <input
-                    ref={productImagesInputRef}
-                    hidden
-                    type="file"
-                    accept="image/png,image/jpeg,image/webp"
-                    multiple
-                    onChange={(e) => {
-                      const files = e.target.files
-                      if (!files || files.length === 0) return
-                      uploadImagesMut.mutate(Array.from(files))
-                    }}
-                  />
-                </Button>
-                <Button
-                  variant="outlined"
-                  onClick={() => {
-                    setGallerySelectedUrls(new Set())
-                    setGalleryPickOpen(true)
-                  }}
-                >
-                  Из галереи
-                </Button>
-                {uploadImagesMut.isPending && <Typography color="text.secondary">Загрузка…</Typography>}
-                {uploadImagesMut.isError && <Typography color="error">Не удалось загрузить фото</Typography>}
-              </Box>
-
-              {productForm.watch('imageUrls').length > 0 && (
-                <Box sx={{ mt: 2, display: 'flex', gap: 1, flexWrap: 'wrap' }}>
-                  {productForm.watch('imageUrls').map((url) => (
-                    <Box
-                      key={url}
-                      sx={{
-                        width: 92,
-                        height: 92,
-                        borderRadius: 1,
-                        border: 1,
-                        borderColor: 'divider',
-                        overflow: 'hidden',
-                        position: 'relative',
-                      }}
-                      title={url}
-                    >
-                      <OptimizedImage
-                        src={url}
-                        alt="Фото товара"
-                        widths={[320, 640]}
-                        sizes="80px"
-                        sx={{ width: '100%', height: '100%', objectFit: 'cover' }}
-                      />
-                      <Button
-                        size="small"
-                        color="error"
-                        variant="contained"
-                        onClick={() => removeImage(url)}
-                        aria-label="Убрать из карточки"
-                        title="Убрать из карточки"
-                        sx={{
-                          position: 'absolute',
-                          top: 4,
-                          right: 4,
-                          minWidth: 0,
-                          px: 0.75,
-                          py: 0,
-                          lineHeight: 1.2,
-                        }}
-                      >
-                        ×
-                      </Button>
-                    </Box>
-                  ))}
-                </Box>
-              )}
-            </Box>
-            <Controller
-              control={productForm.control}
-              name="categoryId"
-              render={({ field }) => (
-                <FormControl fullWidth error={!field.value}>
-                  <InputLabel id="cat-label">Категория</InputLabel>
-                  <Select labelId="cat-label" label="Категория" {...field}>
-                    {(categoriesQuery.data ?? []).map((c) => (
-                      <MenuItem key={c.id} value={c.id}>
-                        {c.name}
-                      </MenuItem>
-                    ))}
-                  </Select>
-                  {!field.value && <FormHelperText>Выберите категорию</FormHelperText>}
-                </FormControl>
-              )}
-            />
-            <Controller
-              control={productForm.control}
-              name="published"
-              render={({ field }) => (
-                <FormControlLabel
-                  control={<Switch checked={field.value} onChange={(_, v) => field.onChange(v)} />}
-                  label="Показывать в каталоге"
-                />
-              )}
-            />
-          </Stack>
-        </DialogContent>
-        <DialogActions>
-          <Button onClick={closeDialog}>Отмена</Button>
-          <Button
-            variant="contained"
-            onClick={handleSubmit}
-            disabled={
-              !titleValue.trim() ||
-              !productForm.watch('categoryId') ||
-              !productForm.watch('quantity').trim() ||
-              createMut.isPending ||
-              updateMut.isPending
-            }
-          >
-            {editing ? 'Сохранить' : 'Создать'}
-          </Button>
-        </DialogActions>
-      </Dialog>
-
-      <Dialog
-        open={galleryPickOpen}
-        onClose={() => {
-          setGalleryPickOpen(false)
-          setGallerySelectedUrls(new Set())
-        }}
-        fullWidth
-        maxWidth="sm"
-      >
-        <DialogTitle>Изображения из галереи</DialogTitle>
-        <DialogContent dividers>
-          {galleryForPickQuery.isLoading && <Typography color="text.secondary">Загрузка списка…</Typography>}
-          {galleryForPickQuery.isError && (
-            <Alert severity="error">Не удалось загрузить галерею. Попробуйте ещё раз.</Alert>
-          )}
-          {galleryForPickQuery.data?.items.length === 0 && !galleryForPickQuery.isLoading && (
-            <Typography color="text.secondary">В галерее пока нет файлов. Загрузите их в разделе «Галерея».</Typography>
-          )}
-          <Box
-            sx={{
-              display: 'grid',
-              gridTemplateColumns: 'repeat(auto-fill, minmax(120px, 1fr))',
-              gap: 1.5,
-              pt: 1,
-            }}
-          >
-            {(galleryForPickQuery.data?.items ?? []).map((item) => {
-              const alreadyInCard = productForm.watch('imageUrls').includes(item.url)
-              return (
-                <FormControlLabel
-                  key={item.id}
-                  sx={{ m: 0, alignItems: 'flex-start' }}
-                  control={
-                    <Checkbox
-                      checked={alreadyInCard || gallerySelectedUrls.has(item.url)}
-                      disabled={alreadyInCard}
-                      onChange={() => toggleGalleryPickUrl(item.url)}
-                    />
-                  }
-                  label={
-                    <Box sx={{ width: '100%', maxHeight: 100, borderRadius: 1, overflow: 'hidden' }}>
-                      <OptimizedImage
-                        src={item.url}
-                        alt=""
-                        widths={[320, 640]}
-                        sizes="120px"
-                        sx={{ width: '100%', height: '100%', objectFit: 'cover' }}
-                      />
-                    </Box>
-                  }
-                />
-              )
-            })}
-          </Box>
-        </DialogContent>
-        <DialogActions>
-          <Button
-            onClick={() => {
-              setGalleryPickOpen(false)
-              setGallerySelectedUrls(new Set())
-            }}
-          >
-            Отмена
-          </Button>
-          <Button
-            variant="contained"
-            onClick={appendGalleryUrlsToForm}
-            disabled={![...gallerySelectedUrls].some((u) => !productForm.watch('imageUrls').includes(u))}
-          >
-            Добавить
-          </Button>
-        </DialogActions>
-      </Dialog>
-
-      <Dialog open={catOpen} onClose={() => setCatOpen(false)} fullWidth maxWidth="xs">
-        <DialogTitle>Новая категория</DialogTitle>
-        <DialogContent>
-          <Stack spacing={2} sx={{ mt: 1 }}>
-            <Controller
-              control={categoryForm.control}
-              name="name"
-              render={({ field }) => <TextField label="Название" fullWidth required {...field} />}
-            />
-            <Controller
-              control={categoryForm.control}
-              name="slug"
-              render={({ field }) => (
-                <TextField
-                  label="Slug"
-                  fullWidth
-                  {...field}
-                  helperText="Необязательно — можно сгенерировать из названия на сервере"
-                />
-              )}
-            />
-          </Stack>
-        </DialogContent>
-        <DialogActions>
-          <Button onClick={() => setCatOpen(false)}>Отмена</Button>
-          <Button
-            variant="contained"
-            disabled={!categoryForm.watch('name').trim() || createCategoryMut.isPending}
-            onClick={() => createCategoryMut.mutate()}
-          >
-            Создать
-          </Button>
-        </DialogActions>
-      </Dialog>
-
-      <Dialog
-        open={categoryEditOpen}
-        onClose={() => {
-          setCategoryEditOpen(false)
-          setEditingCategory(null)
-        }}
-        fullWidth
-        maxWidth="xs"
-      >
-        <DialogTitle>Редактировать категорию</DialogTitle>
-        <DialogContent>
-          <Stack spacing={2} sx={{ mt: 1 }}>
-            <Controller
-              control={categoryEditForm.control}
-              name="name"
-              render={({ field }) => <TextField label="Название" fullWidth required {...field} />}
-            />
-            <Controller
-              control={categoryEditForm.control}
-              name="slug"
-              render={({ field }) => (
-                <TextField
-                  label="Slug"
-                  fullWidth
-                  {...field}
-                  disabled={editingCategory?.slug === UNSPECIFIED_CATEGORY_SLUG}
-                  helperText={
-                    editingCategory?.slug === UNSPECIFIED_CATEGORY_SLUG
-                      ? 'Служебный slug нельзя изменить'
-                      : 'Идентификатор в URL'
-                  }
-                />
-              )}
-            />
-            <Controller
-              control={categoryEditForm.control}
-              name="sort"
-              render={({ field }) => (
-                <TextField
-                  label="Порядок сортировки"
-                  fullWidth
-                  type="number"
-                  {...field}
-                  slotProps={{ htmlInput: { step: 1 } }}
-                />
-              )}
-            />
-          </Stack>
-        </DialogContent>
-        <DialogActions>
-          <Button
-            onClick={() => {
-              setCategoryEditOpen(false)
-              setEditingCategory(null)
-            }}
-          >
-            Отмена
-          </Button>
-          <Button
-            variant="contained"
-            disabled={!categoryEditForm.watch('name').trim() || updateCategoryMut.isPending || !editingCategory}
-            onClick={() => updateCategoryMut.mutate()}
-          >
-            Сохранить
-          </Button>
-        </DialogActions>
-      </Dialog>
-
-      <Dialog
-        open={Boolean(categoryDeleteTarget)}
-        onClose={() => setCategoryDeleteTarget(null)}
-        maxWidth="xs"
-        fullWidth
-      >
-        <DialogTitle>Удалить категорию?</DialogTitle>
-        <DialogContent>
-          <Typography variant="body2">
-            {categoryDeleteTarget && (
-              <>
-                Категория «{categoryDeleteTarget.name}» будет удалена. Все товары из неё получат категорию «Не указано».
-              </>
-            )}
-          </Typography>
-        </DialogContent>
-        <DialogActions>
-          <Button onClick={() => setCategoryDeleteTarget(null)}>Отмена</Button>
-          <Button
-            color="error"
-            variant="contained"
-            disabled={deleteCategoryMut.isPending}
-            onClick={() => {
-              if (categoryDeleteTarget) deleteCategoryMut.mutate(categoryDeleteTarget.id)
-            }}
-          >
-            Удалить
-          </Button>
-        </DialogActions>
-      </Dialog>
-    </Box>
-  )
-}
diff --git a/client/src/shared/ui/__tests__/OptimizedImage.test.tsx b/client/src/shared/ui/__tests__/OptimizedImage.test.tsx
index 2ed4136..12eeac8 100644
--- a/client/src/shared/ui/__tests__/OptimizedImage.test.tsx
+++ b/client/src/shared/ui/__tests__/OptimizedImage.test.tsx
@@ -47,8 +47,8 @@ describe('OptimizedImage', () => {
       .closest('picture')
       ?.querySelector('source[type="image/avif"]') as HTMLSourceElement
     const srcSet = avifSource?.getAttribute('srcset') ?? ''
-    expect(srcSet).toContain('?w=200')
-    expect(srcSet).toContain('?w=400')
-    expect(srcSet).not.toContain('?w=640')
+    expect(srcSet).toContain('?w=320')
+    expect(srcSet).toContain('?w=640')
+    expect(srcSet).not.toContain('?w=1024')
   })
 })
diff --git a/server/src/routes/api/admin-products.js b/server/src/routes/api/admin-products.js
index e0097fd..404f70b 100644
--- a/server/src/routes/api/admin-products.js
+++ b/server/src/routes/api/admin-products.js
@@ -107,8 +107,12 @@ export async function registerAdminProductRoutes(fastify) {
         return
       }
       const priceCents = Number(body.priceCents)
-      if (!Number.isFinite(priceCents) || priceCents < 0) {
-        reply.code(400).send({ error: 'Некорректная цена (priceCents ≥ 0)' })
+      if (!Number.isFinite(priceCents) || priceCents <= 0) {
+        reply.code(400).send({ error: 'Цена должна быть больше 0' })
+        return
+      }
+      if (priceCents > 10_000_00) {
+        reply.code(400).send({ error: 'Цена не может превышать 10 000 ₽' })
         return
       }
       const exists = await prisma.product.findUnique({ where: { slug } })
@@ -118,11 +122,11 @@ export async function registerAdminProductRoutes(fastify) {
       }
 
       const n = Number(body.quantity)
-      if (!Number.isFinite(n) || n < 0) {
-        reply.code(400).send({ error: 'Некорректное количество (quantity ≥ 0)' })
+      if (!Number.isInteger(n) || n < 0 || n > 10) {
+        reply.code(400).send({ error: 'Количество — целое число от 0 до 10' })
         return
       }
-      const quantity = Math.floor(n)
+      const quantity = n
 
       const product = await prisma.product.create({
         data: {
@@ -184,19 +188,23 @@ export async function registerAdminProductRoutes(fastify) {
       }
       if (body.quantity !== undefined) {
         const n = Number(body.quantity)
-        if (!Number.isFinite(n) || n < 0) {
-          reply.code(400).send({ error: 'Некорректное количество (quantity ≥ 0)' })
+        if (!Number.isInteger(n) || n < 0 || n > 10) {
+          reply.code(400).send({ error: 'Количество — целое число от 0 до 10' })
           return
         }
-        data.quantity = Math.floor(n)
+        data.quantity = n
       }
       if (body.materials !== undefined) {
         data.materials = JSON.stringify(request.server.parseMaterialsInput(body.materials))
       }
       if (body.priceCents !== undefined) {
         const p = Number(body.priceCents)
-        if (!Number.isFinite(p) || p < 0) {
-          reply.code(400).send({ error: 'Некорректная цена' })
+        if (!Number.isFinite(p) || p <= 0) {
+          reply.code(400).send({ error: 'Цена должна быть больше 0' })
+          return
+        }
+        if (p > 10_000_00) {
+          reply.code(400).send({ error: 'Цена не может превышать 10 000 ₽' })
           return
         }
         data.priceCents = Math.round(p)
diff --git a/server/uploads/.cache/3e43e7ab-82e3-4877-a267-9f2145c8981f_w1024.avif b/server/uploads/.cache/3e43e7ab-82e3-4877-a267-9f2145c8981f_w1024.avif
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