feat(product+filters): срок годности (shelfLifeDays) + фильтр от/до

ProductEditPage:
- В секции «Основное» добавлено поле «Срок годности (дней)» рядом с
  Артикулом — NumberInput, целое ≥ 0, hint «не обязательное поле».
- form.shelfLifeDays хранится строкой и сериализуется в payload как
  number | null.

ProductsPage filters:
- Добавлен диапазон «Срок годности (дней) — от / до».
- Удалён остаток фильтра isActive (поле выпилено в Phase3b foundation).

ProductsController.List:
- Принимает shelfLifeDaysFrom / shelfLifeDaysTo (int?) и применяет
  ≥ / ≤ к p.ShelfLifeDays.
- Также теперь принимает referencePriceFrom / referencePriceTo (новые
  имена); старые purchasePriceFrom/To работают как алиасы для
  обратной совместимости с уже отрендеренным UI.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/food-market.api/Controllers/Catalog/ProductsController.cs

@@ -94,6 +94,10 @@ private async Task<decimal> ResolveDefaultVatAsync(CancellationToken ct)
         [FromQuery] bool? isMarked,
         [FromQuery] decimal? purchasePriceFrom,
         [FromQuery] decimal? purchasePriceTo,
+        [FromQuery] decimal? referencePriceFrom,
+        [FromQuery] decimal? referencePriceTo,
+        [FromQuery] int? shelfLifeDaysFrom,
+        [FromQuery] int? shelfLifeDaysTo,
         CancellationToken ct)
     {
         var q = QueryIncludes().AsNoTracking();
@@ -115,8 +119,14 @@ private async Task<decimal> ResolveDefaultVatAsync(CancellationToken ct)
         if (isService is not null) q = q.Where(p => p.IsService == isService);
         if (packaging is not null) q = q.Where(p => p.Packaging == packaging);
         if (isMarked is not null) q = q.Where(p => p.IsMarked == isMarked);
-        if (purchasePriceFrom is not null) q = q.Where(p => p.ReferencePrice >= purchasePriceFrom);
+        // referencePriceFrom/To — новый, актуальный параметр; purchasePriceFrom/To
-        if (purchasePriceTo is not null) q = q.Where(p => p.ReferencePrice <= purchasePriceTo);
+        // — обратная совместимость c прежним UI (тоже по ReferencePrice).
+        var refFrom = referencePriceFrom ?? purchasePriceFrom;
+        var refTo = referencePriceTo ?? purchasePriceTo;
+        if (refFrom is not null) q = q.Where(p => p.ReferencePrice >= refFrom);
+        if (refTo is not null) q = q.Where(p => p.ReferencePrice <= refTo);
+        if (shelfLifeDaysFrom is not null) q = q.Where(p => p.ShelfLifeDays >= shelfLifeDaysFrom);
+        if (shelfLifeDaysTo is not null) q = q.Where(p => p.ShelfLifeDays <= shelfLifeDaysTo);
 
         if (!string.IsNullOrWhiteSpace(req.Search))
         {

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

@@ -34,6 +34,7 @@ interface Form {
   referencePrice: string
   purchaseCurrencyId: string
   imageUrl: string
+  shelfLifeDays: string
   prices: PriceRow[]
   barcodes: BarcodeRow[]
 }
@@ -47,6 +48,7 @@ const emptyForm: Form = {
   minStock: '', maxStock: '',
   referencePrice: '', purchaseCurrencyId: '',
   imageUrl: '',
+  shelfLifeDays: '',
   prices: [],
   barcodes: [],
 }
@@ -89,6 +91,7 @@ export function ProductEditPage() {
         referencePrice: p.referencePrice?.toString() ?? '',
         purchaseCurrencyId: p.purchaseCurrencyId ?? '',
         imageUrl: p.imageUrl ?? '',
+        shelfLifeDays: p.shelfLifeDays?.toString() ?? '',
         prices: p.prices.map((x) => ({ id: x.id, priceTypeId: x.priceTypeId, amount: x.amount, currencyId: x.currencyId })),
         barcodes: p.barcodes.map((x) => ({ id: x.id, code: x.code, type: x.type, isPrimary: x.isPrimary })),
       })
@@ -149,6 +152,7 @@ export function ProductEditPage() {
         referencePrice: form.referencePrice === '' ? null : Number(form.referencePrice),
         purchaseCurrencyId: form.purchaseCurrencyId || null,
         imageUrl: form.imageUrl || null,
+        shelfLifeDays: form.shelfLifeDays === '' ? null : Number(form.shelfLifeDays),
         prices: form.prices.map((p) => ({ priceTypeId: p.priceTypeId, amount: Number(p.amount), currencyId: p.currencyId })),
         barcodes: form.barcodes.map((b) => ({ code: b.code, type: b.type, isPrimary: b.isPrimary })),
       }
@@ -250,6 +254,14 @@ export function ProductEditPage() {
               <Field label="Артикул">
                 <TextInput value={form.article} onChange={(e) => setForm({ ...form, article: e.target.value })} />
               </Field>
+              <Field label="Срок годности (дней)">
+                <NumberInput
+                  value={form.shelfLifeDays === '' ? null : Number(form.shelfLifeDays)}
+                  onChange={(n) => setForm({ ...form, shelfLifeDays: n == null ? '' : String(Math.max(0, Math.round(n))) })}
+                  placeholder="—"
+                />
+                <p className="text-xs text-slate-400 mt-1">не обязательное поле</p>
+              </Field>
               <Field label="Описание" className="col-span-3">
                 <TextArea rows={2} value={form.description} onChange={(e) => setForm({ ...form, description: e.target.value })} />
               </Field>

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

@@ -18,45 +18,49 @@ type TriFilter = 'all' | 'yes' | 'no'
 
 interface Filters {
   groupId: string | null
-  isActive: TriFilter
   isService: TriFilter
   packaging: number | null   // null = все, 1/2/3 = Piece/Weight/Liquid
   isMarked: TriFilter
   referencePriceFrom: number | null
   referencePriceTo: number | null
+  shelfLifeDaysFrom: number | null
+  shelfLifeDaysTo: number | null
 }
 
 const defaultFilters: Filters = {
   groupId: null,
-  isActive: 'yes',
   isService: 'all',
   packaging: null,
   isMarked: 'all',
   referencePriceFrom: null,
   referencePriceTo: null,
+  shelfLifeDaysFrom: null,
+  shelfLifeDaysTo: null,
 }
 
 const toExtra = (f: Filters): Record<string, string | number | boolean | undefined> => {
   const e: Record<string, string | number | boolean | undefined> = {}
   if (f.groupId) e.groupId = f.groupId
-  if (f.isActive !== 'all') e.isActive = f.isActive === 'yes'
   if (f.isService !== 'all') e.isService = f.isService === 'yes'
   if (f.packaging) e.packaging = f.packaging
   if (f.isMarked !== 'all') e.isMarked = f.isMarked === 'yes'
   if (f.referencePriceFrom != null) e.referencePriceFrom = f.referencePriceFrom
   if (f.referencePriceTo != null) e.referencePriceTo = f.referencePriceTo
+  if (f.shelfLifeDaysFrom != null) e.shelfLifeDaysFrom = f.shelfLifeDaysFrom
+  if (f.shelfLifeDaysTo != null) e.shelfLifeDaysTo = f.shelfLifeDaysTo
   return e
 }
 
 const activeFilterCount = (f: Filters) => {
   let n = 0
   if (f.groupId) n++
-  if (f.isActive !== 'yes') n++  // 'yes' is default, count non-default
   if (f.isService !== 'all') n++
   if (f.packaging) n++
   if (f.isMarked !== 'all') n++
   if (f.referencePriceFrom != null) n++
   if (f.referencePriceTo != null) n++
+  if (f.shelfLifeDaysFrom != null) n++
+  if (f.shelfLifeDaysTo != null) n++
   return n
 }
 
@@ -213,7 +217,6 @@ export function ProductsPage() {
         {/* Filter panel */}
         {filtersOpen && (
           <div className="px-4 sm:px-6 py-3 border-b border-slate-200 dark:border-slate-800 bg-slate-50 dark:bg-slate-900/60 flex flex-wrap gap-3 sm:gap-4 items-center">
-            <Tri label="Активные" value={filters.isActive} onChange={(v) => { setFilters({ ...filters, isActive: v }); setPage(1) }} />
             {showService && (
               <Tri label="Услуга" value={filters.isService} onChange={(v) => { setFilters({ ...filters, isService: v }); setPage(1) }} />
             )}
@@ -256,6 +259,23 @@ export function ProductsPage() {
                 />
               </div>
             </div>
+            <div className="flex items-center gap-2 text-xs">
+              <span className="text-slate-500">Срок годности (дней)</span>
+              <input
+                type="number" min="0"
+                value={filters.shelfLifeDaysFrom ?? ''}
+                placeholder="от"
+                onChange={(e) => { const v = e.target.value === '' ? null : Number(e.target.value); setFilters({ ...filters, shelfLifeDaysFrom: v }); setPage(1) }}
+                className="w-20 px-2 py-0.5 rounded border border-slate-200 dark:border-slate-700 bg-white dark:bg-slate-900"
+              />
+              <input
+                type="number" min="0"
+                value={filters.shelfLifeDaysTo ?? ''}
+                placeholder="до"
+                onChange={(e) => { const v = e.target.value === '' ? null : Number(e.target.value); setFilters({ ...filters, shelfLifeDaysTo: v }); setPage(1) }}
+                className="w-20 px-2 py-0.5 rounded border border-slate-200 dark:border-slate-700 bg-white dark:bg-slate-900"
+              />
+            </div>
             {activeCount > 0 && (
               <button
                 type="button"