feat(org-settings): Country↔Currency, Organization.DefaultCurrency/MultiCurrency/DefaultVat + UI настроек

Миграция Phase4_CountryCurrencyOrgDefaults:
- countries.DefaultCurrencyId (FK → currencies)
- organizations.DefaultCurrencyId, MultiCurrencyEnabled, DefaultVat
- Seed: KZ→KZT, RU→RUB, BY→BYN, US→USD, DE→EUR, CN→CNY, TR→TRY
- Default для org: KZT, vat=16

Backend:
- Organization сущность получила DefaultCurrency/MultiCurrencyEnabled/DefaultVat.
- OrganizationSettingsController: GET/PUT /api/organization/settings.
- DevDataSeeder при создании/backfill орга выставляет KZT + vat=16.

Web:
- /settings/organization: форма с выбором страны (авто-подтягивает валюту),
  чекбоксом multi-currency, ставкой НДС по умолчанию.
- useOrgSettings() хук.
- SupplyEditPage / RetailSaleEditPage / ProductEditPage: select валюты
  показывается только если multiCurrencyEnabled=true, иначе
  подтягивается DefaultCurrency организации и рисуется символ валюты
  справа от цены.
- ProductEditPage при создании нового товара берёт VAT из org.DefaultVat.
- В sidebar добавлен раздел 'Настройки → Организация', убран
  Ставки НДС (сущность удалена раньше).

src/food-market.api/Controllers/Organizations/OrganizationSettingsController.cs

@@ -0,0 +1,79 @@
+using foodmarket.Application.Common.Tenancy;
+using foodmarket.Infrastructure.Persistence;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace foodmarket.Api.Controllers.Organizations;
+
+[ApiController]
+[Authorize]
+[Route("api/organization")]
+public class OrganizationSettingsController : ControllerBase
+{
+    private readonly AppDbContext _db;
+    private readonly ITenantContext _tenant;
+
+    public OrganizationSettingsController(AppDbContext db, ITenantContext tenant)
+    {
+        _db = db;
+        _tenant = tenant;
+    }
+
+    public record OrgSettingsDto(
+        Guid Id,
+        string Name,
+        string CountryCode,
+        Guid? DefaultCurrencyId,
+        string? DefaultCurrencyCode,
+        string? DefaultCurrencySymbol,
+        bool MultiCurrencyEnabled,
+        int DefaultVat);
+
+    public record OrgSettingsInput(
+        string Name,
+        string CountryCode,
+        Guid? DefaultCurrencyId,
+        bool MultiCurrencyEnabled,
+        int DefaultVat);
+
+    [HttpGet("settings")]
+    public async Task<ActionResult<OrgSettingsDto>> Get(CancellationToken ct)
+    {
+        var orgId = _tenant.OrganizationId ?? throw new InvalidOperationException("No tenant.");
+        var o = await _db.Organizations
+            .Include(o => o.DefaultCurrency)
+            .FirstOrDefaultAsync(o => o.Id == orgId, ct);
+        if (o is null) return NotFound();
+        return Project(o);
+    }
+
+    [HttpPut("settings"), Authorize(Roles = "Admin,Manager")]
+    public async Task<ActionResult<OrgSettingsDto>> Update([FromBody] OrgSettingsInput input, CancellationToken ct)
+    {
+        var orgId = _tenant.OrganizationId ?? throw new InvalidOperationException("No tenant.");
+        var o = await _db.Organizations
+            .Include(o => o.DefaultCurrency)
+            .FirstOrDefaultAsync(o => o.Id == orgId, ct);
+        if (o is null) return NotFound();
+
+        o.Name = input.Name;
+        o.CountryCode = input.CountryCode;
+        o.DefaultCurrencyId = input.DefaultCurrencyId;
+        o.MultiCurrencyEnabled = input.MultiCurrencyEnabled;
+        o.DefaultVat = input.DefaultVat;
+        await _db.SaveChangesAsync(ct);
+
+        // Re-read чтобы подтянуть DefaultCurrency.
+        await _db.Entry(o).Reference(x => x.DefaultCurrency).LoadAsync(ct);
+        return Project(o);
+    }
+
+    private static OrgSettingsDto Project(foodmarket.Domain.Organizations.Organization o) => new(
+        o.Id, o.Name, o.CountryCode,
+        o.DefaultCurrencyId,
+        o.DefaultCurrency?.Code,
+        o.DefaultCurrency?.Symbol,
+        o.MultiCurrencyEnabled,
+        o.DefaultVat);
+}

src/food-market.api/Seed/DevDataSeeder.cs

@@ -38,6 +38,7 @@ public async Task StartAsync(CancellationToken ct)
             }
         }
 
+        var kzt = await db.Currencies.FirstOrDefaultAsync(c => c.Code == "KZT", ct);
         var demoOrg = await db.Organizations.FirstOrDefaultAsync(o => o.Name == "Demo Market", ct);
         if (demoOrg is null)
         {
@@ -48,11 +49,20 @@ public async Task StartAsync(CancellationToken ct)
                 Bin = "000000000000",
                 Address = "Алматы, ул. Пример 1",
                 Phone = "+7 (777) 000-00-00",
-                Email = "demo@food-market.local"
+                Email = "demo@food-market.local",
+                DefaultCurrencyId = kzt?.Id,
+                DefaultVat = 16,
             };
             db.Organizations.Add(demoOrg);
             await db.SaveChangesAsync(ct);
         }
+        else if (demoOrg.DefaultCurrencyId is null && kzt is not null)
+        {
+            // backfill для существующей организации на стенде
+            demoOrg.DefaultCurrencyId = kzt.Id;
+            if (demoOrg.DefaultVat == 0) demoOrg.DefaultVat = 16;
+            await db.SaveChangesAsync(ct);
+        }
 
         await SeedTenantReferencesAsync(db, demoOrg.Id, ct);
 

src/food-market.domain/Catalog/Country.cs

@@ -8,4 +8,8 @@ public class Country : Entity
     public string Code { get; set; } = null!;   // ISO 3166-1 alpha-2, e.g. "KZ"
     public string Name { get; set; } = null!;
     public int SortOrder { get; set; }
+    /// <summary>Валюта по умолчанию для этой страны — при выборе страны в настройках
+    /// организации её валюта подтягивается автоматически.</summary>
+    public Guid? DefaultCurrencyId { get; set; }
+    public Currency? DefaultCurrency { get; set; }
 }

src/food-market.domain/Organizations/Organization.cs

@@ -1,3 +1,4 @@
+using foodmarket.Domain.Catalog;
 using foodmarket.Domain.Common;
 
 namespace foodmarket.Domain.Organizations;
@@ -15,4 +16,17 @@ public class Organization : Entity
     /// <summary>Персональный API-токен MoySklad. Храним per-organization чтобы
     /// пользователю не нужно было вводить его каждый раз при импорте.</summary>
     public string? MoySkladToken { get; set; }
+
+    /// <summary>Валюта организации по умолчанию. Если MultiCurrencyEnabled=false,
+    /// в UI выбор валюты скрыт — всё в этой валюте.</summary>
+    public Guid? DefaultCurrencyId { get; set; }
+    public Currency? DefaultCurrency { get; set; }
+
+    /// <summary>Разрешены ли продажи/закупки в нескольких валютах. По умолчанию
+    /// false — тогда UI не предлагает выбор валюты, всё в DefaultCurrency.</summary>
+    public bool MultiCurrencyEnabled { get; set; }
+
+    /// <summary>Ставка НДС по умолчанию для новых товаров (KZ=16%, RU=20%).
+    /// Само значение применяется к товару при создании; пользователь может менять.</summary>
+    public int DefaultVat { get; set; } = 16;
 }

src/food-market.infrastructure/Persistence/AppDbContext.cs

@@ -70,6 +70,7 @@ protected override void OnModelCreating(ModelBuilder builder)
             b.Property(o => o.CountryCode).HasMaxLength(2).IsRequired();
             b.Property(o => o.Bin).HasMaxLength(20);
             b.Property(o => o.MoySkladToken).HasMaxLength(200);
+            b.HasOne(o => o.DefaultCurrency).WithMany().HasForeignKey(o => o.DefaultCurrencyId).OnDelete(DeleteBehavior.Restrict);
             b.HasIndex(o => o.Name);
         });
 

src/food-market.infrastructure/Persistence/Configurations/CatalogConfigurations.cs

@@ -27,6 +27,7 @@ private static void ConfigureCountry(EntityTypeBuilder<Country> b)
         b.ToTable("countries");
         b.Property(x => x.Code).HasMaxLength(2).IsRequired();
         b.Property(x => x.Name).HasMaxLength(100).IsRequired();
+        b.HasOne(x => x.DefaultCurrency).WithMany().HasForeignKey(x => x.DefaultCurrencyId).OnDelete(DeleteBehavior.Restrict);
         b.HasIndex(x => x.Code).IsUnique();
     }
 

src/food-market.infrastructure/Persistence/Migrations/20260424001500_Phase4_CountryCurrencyOrgDefaults.cs

@@ -0,0 +1,83 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace foodmarket.Infrastructure.Persistence.Migrations
+{
+    /// <summary>Country ↔ Currency связка + дефолты организации:
+    ///   - countries.DefaultCurrencyId (nullable FK → currencies.Id)
+    ///   - organizations.DefaultCurrencyId (FK → currencies.Id)
+    ///   - organizations.MultiCurrencyEnabled (bool, default false)
+    ///   - organizations.DefaultVat (int, default 16)
+    /// Seed: KZ→KZT, RU→RUB; org → KZ+KZT.</summary>
+    public partial class Phase4_CountryCurrencyOrgDefaults : Migration
+    {
+        protected override void Up(MigrationBuilder b)
+        {
+            b.AddColumn<Guid>(
+                name: "DefaultCurrencyId", schema: "public", table: "countries",
+                type: "uuid", nullable: true);
+
+            b.AddColumn<Guid>(
+                name: "DefaultCurrencyId", schema: "public", table: "organizations",
+                type: "uuid", nullable: true);
+            b.AddColumn<bool>(
+                name: "MultiCurrencyEnabled", schema: "public", table: "organizations",
+                type: "boolean", nullable: false, defaultValue: false);
+            b.AddColumn<int>(
+                name: "DefaultVat", schema: "public", table: "organizations",
+                type: "integer", nullable: false, defaultValue: 16);
+
+            b.CreateIndex(
+                name: "IX_countries_DefaultCurrencyId", schema: "public",
+                table: "countries", column: "DefaultCurrencyId");
+            b.CreateIndex(
+                name: "IX_organizations_DefaultCurrencyId", schema: "public",
+                table: "organizations", column: "DefaultCurrencyId");
+
+            b.AddForeignKey(
+                name: "FK_countries_currencies_DefaultCurrencyId",
+                schema: "public", table: "countries", column: "DefaultCurrencyId",
+                principalSchema: "public", principalTable: "currencies", principalColumn: "Id",
+                onDelete: ReferentialAction.Restrict);
+            b.AddForeignKey(
+                name: "FK_organizations_currencies_DefaultCurrencyId",
+                schema: "public", table: "organizations", column: "DefaultCurrencyId",
+                principalSchema: "public", principalTable: "currencies", principalColumn: "Id",
+                onDelete: ReferentialAction.Restrict);
+
+            // Backfill: привяжем валюты к странам по ISO-коду.
+            b.Sql("""
+                UPDATE public.countries SET "DefaultCurrencyId" = c."Id"
+                FROM public.currencies c
+                WHERE (public.countries."Code" = 'KZ' AND c."Code" = 'KZT')
+                   OR (public.countries."Code" = 'RU' AND c."Code" = 'RUB')
+                   OR (public.countries."Code" = 'BY' AND c."Code" = 'BYN')
+                   OR (public.countries."Code" = 'US' AND c."Code" = 'USD')
+                   OR (public.countries."Code" = 'DE' AND c."Code" = 'EUR')
+                   OR (public.countries."Code" = 'CN' AND c."Code" = 'CNY')
+                   OR (public.countries."Code" = 'TR' AND c."Code" = 'TRY');
+            """);
+
+            // Дефолт для организации — KZT, если существует.
+            b.Sql("""
+                UPDATE public.organizations SET "DefaultCurrencyId" = c."Id"
+                FROM public.currencies c
+                WHERE c."Code" = 'KZT' AND public.organizations."DefaultCurrencyId" IS NULL;
+            """);
+        }
+
+        protected override void Down(MigrationBuilder b)
+        {
+            b.DropForeignKey(name: "FK_countries_currencies_DefaultCurrencyId", schema: "public", table: "countries");
+            b.DropForeignKey(name: "FK_organizations_currencies_DefaultCurrencyId", schema: "public", table: "organizations");
+            b.DropIndex(name: "IX_countries_DefaultCurrencyId", schema: "public", table: "countries");
+            b.DropIndex(name: "IX_organizations_DefaultCurrencyId", schema: "public", table: "organizations");
+            b.DropColumn(name: "DefaultCurrencyId", schema: "public", table: "countries");
+            b.DropColumn(name: "DefaultCurrencyId", schema: "public", table: "organizations");
+            b.DropColumn(name: "MultiCurrencyEnabled", schema: "public", table: "organizations");
+            b.DropColumn(name: "DefaultVat", schema: "public", table: "organizations");
+        }
+    }
+}

src/food-market.infrastructure/Persistence/Migrations/AppDbContextModelSnapshot.cs

@@ -434,6 +434,9 @@ protected override void BuildModel(ModelBuilder modelBuilder)
                     b.Property<DateTime>("CreatedAt")
                         .HasColumnType("timestamp with time zone");
 
+                    b.Property<Guid?>("DefaultCurrencyId")
+                        .HasColumnType("uuid");
+
                     b.Property<string>("Name")
                         .IsRequired()
                         .HasMaxLength(100)
@@ -450,6 +453,8 @@ protected override void BuildModel(ModelBuilder modelBuilder)
                     b.HasIndex("Code")
                         .IsUnique();
 
+                    b.HasIndex("DefaultCurrencyId");
+
                     b.ToTable("countries", "public");
                 });
 
@@ -1071,6 +1076,12 @@ protected override void BuildModel(ModelBuilder modelBuilder)
                     b.Property<string>("Email")
                         .HasColumnType("text");
 
+                    b.Property<Guid?>("DefaultCurrencyId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("DefaultVat")
+                        .HasColumnType("integer");
+
                     b.Property<bool>("IsActive")
                         .HasColumnType("boolean");
 
@@ -1078,6 +1089,9 @@ protected override void BuildModel(ModelBuilder modelBuilder)
                         .HasMaxLength(200)
                         .HasColumnType("character varying(200)");
 
+                    b.Property<bool>("MultiCurrencyEnabled")
+                        .HasColumnType("boolean");
+
                     b.Property<string>("Name")
                         .IsRequired()
                         .HasMaxLength(200)
@@ -1091,6 +1105,8 @@ protected override void BuildModel(ModelBuilder modelBuilder)
 
                     b.HasKey("Id");
 
+                    b.HasIndex("DefaultCurrencyId");
+
                     b.HasIndex("Name");
 
                     b.ToTable("organizations", "public");

src/food-market.web/src/App.tsx

@@ -13,6 +13,7 @@ import { CounterpartiesPage } from '@/pages/CounterpartiesPage'
 import { ProductsPage } from '@/pages/ProductsPage'
 import { ProductEditPage } from '@/pages/ProductEditPage'
 import { MoySkladImportPage } from '@/pages/MoySkladImportPage'
+import { OrganizationSettingsPage } from '@/pages/OrganizationSettingsPage'
 import { StockPage } from '@/pages/StockPage'
 import { StockMovementsPage } from '@/pages/StockMovementsPage'
 import { SuppliesPage } from '@/pages/SuppliesPage'
@@ -60,6 +61,7 @@ export default function App() {
               <Route path="/sales/retail/new" element={<RetailSaleEditPage />} />
               <Route path="/sales/retail/:id" element={<RetailSaleEditPage />} />
               <Route path="/admin/import/moysklad" element={<MoySkladImportPage />} />
+              <Route path="/settings/organization" element={<OrganizationSettingsPage />} />
             </Route>
           </Route>
           <Route path="*" element={<Navigate to="/" replace />} />

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

@@ -4,9 +4,9 @@ import { api } from '@/lib/api'
 import { logout } from '@/lib/auth'
 import { cn } from '@/lib/utils'
 import {
-  LayoutDashboard, Package, FolderTree, Ruler, Percent, Tag,
+  LayoutDashboard, Package, FolderTree, Ruler, Tag,
   Users, Warehouse, Store as StoreIcon, Globe, Coins, LogOut, Download,
-  Boxes, History, TruckIcon, ShoppingCart,
+  Boxes, History, TruckIcon, ShoppingCart, Settings,
 } from 'lucide-react'
 import { Logo } from './Logo'
 
@@ -26,7 +26,6 @@ const nav = [
     { to: '/catalog/products', icon: Package, label: 'Товары' },
     { to: '/catalog/product-groups', icon: FolderTree, label: 'Группы' },
     { to: '/catalog/units', icon: Ruler, label: 'Ед. измерения' },
-    { to: '/catalog/vat-rates', icon: Percent, label: 'Ставки НДС' },
     { to: '/catalog/price-types', icon: Tag, label: 'Типы цен' },
   ]},
   { group: 'Контрагенты', items: [
@@ -53,6 +52,9 @@ const nav = [
   { group: 'Импорт', items: [
     { to: '/admin/import/moysklad', icon: Download, label: 'МойСклад' },
   ]},
+  { group: 'Настройки', items: [
+    { to: '/settings/organization', icon: Settings, label: 'Организация' },
+  ]},
 ] as const
 
 export function AppLayout() {

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

@@ -0,0 +1,21 @@
+import { useQuery } from '@tanstack/react-query'
+import { api } from '@/lib/api'
+
+export interface OrgSettings {
+  id: string
+  name: string
+  countryCode: string
+  defaultCurrencyId: string | null
+  defaultCurrencyCode: string | null
+  defaultCurrencySymbol: string | null
+  multiCurrencyEnabled: boolean
+  defaultVat: number
+}
+
+export function useOrgSettings() {
+  return useQuery({
+    queryKey: ['/api/organization/settings'],
+    queryFn: async () => (await api.get<OrgSettings>('/api/organization/settings')).data,
+    staleTime: 5 * 60 * 1000,
+  })
+}

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

@@ -0,0 +1,116 @@
+import { useEffect, useState } from 'react'
+import { useMutation, useQueryClient } from '@tanstack/react-query'
+import { Save } from 'lucide-react'
+import { api } from '@/lib/api'
+import { PageHeader } from '@/components/PageHeader'
+import { Button } from '@/components/Button'
+import { Field, TextInput, Select, Checkbox } from '@/components/Field'
+import { useCurrencies, useCountries } from '@/lib/useLookups'
+import { useOrgSettings, type OrgSettings } from '@/lib/useOrgSettings'
+
+const vatChoices = [0, 10, 12, 16, 20]
+
+export function OrganizationSettingsPage() {
+  const qc = useQueryClient()
+  const settings = useOrgSettings()
+  const currencies = useCurrencies()
+  const countries = useCountries()
+
+  const [form, setForm] = useState<OrgSettings | null>(null)
+  useEffect(() => { if (settings.data && !form) setForm(settings.data) }, [settings.data, form])
+
+  // При смене страны подтягиваем её дефолтную валюту.
+  const onCountryChange = (countryCode: string) => {
+    if (!form) return
+    const country = countries.data?.find((c) => c.code === countryCode)
+    const fallbackByCode: Record<string, string | undefined> = { KZ: 'KZT', RU: 'RUB', BY: 'BYN', US: 'USD' }
+    const targetCode = fallbackByCode[countryCode]
+    const currency = targetCode ? currencies.data?.find((c) => c.code === targetCode) : undefined
+    setForm({
+      ...form,
+      countryCode,
+      defaultCurrencyId: currency?.id ?? form.defaultCurrencyId,
+      defaultCurrencyCode: currency?.code ?? form.defaultCurrencyCode,
+      defaultCurrencySymbol: currency?.symbol ?? form.defaultCurrencySymbol,
+    })
+    void country // reserved for future use (sortOrder etc.)
+  }
+
+  const save = useMutation({
+    mutationFn: async () => {
+      if (!form) return
+      const payload = {
+        name: form.name,
+        countryCode: form.countryCode,
+        defaultCurrencyId: form.defaultCurrencyId,
+        multiCurrencyEnabled: form.multiCurrencyEnabled,
+        defaultVat: form.defaultVat,
+      }
+      return (await api.put<OrgSettings>('/api/organization/settings', payload)).data
+    },
+    onSuccess: (d) => {
+      if (d) setForm(d)
+      qc.invalidateQueries({ queryKey: ['/api/organization/settings'] })
+    },
+  })
+
+  if (!form) return <div className="p-6 text-sm text-slate-500">Загрузка…</div>
+
+  return (
+    <div className="h-full overflow-auto">
+      <div className="p-6 max-w-2xl">
+        <PageHeader title="Настройки организации" description="Страна, валюта, ставка НДС по умолчанию." />
+
+        <section className="bg-white dark:bg-slate-900 rounded-xl border border-slate-200 dark:border-slate-800 p-5 space-y-4">
+          <Field label="Название организации">
+            <TextInput value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} />
+          </Field>
+
+          <div className="grid grid-cols-2 gap-4">
+            <Field label="Страна">
+              <Select value={form.countryCode} onChange={(e) => onCountryChange(e.target.value)}>
+                {countries.data?.map((c) => <option key={c.code} value={c.code}>{c.name}</option>)}
+              </Select>
+            </Field>
+            <Field label="Валюта по умолчанию">
+              <Select
+                value={form.defaultCurrencyId ?? ''}
+                onChange={(e) => {
+                  const id = e.target.value
+                  const c = currencies.data?.find((x) => x.id === id)
+                  setForm({ ...form, defaultCurrencyId: id || null, defaultCurrencyCode: c?.code ?? null, defaultCurrencySymbol: c?.symbol ?? null })
+                }}
+              >
+                <option value="">—</option>
+                {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code} ({c.symbol})</option>)}
+              </Select>
+            </Field>
+          </div>
+
+          <Checkbox
+            label="Разрешить продажи и закупки в нескольких валютах"
+            checked={form.multiCurrencyEnabled}
+            onChange={(v) => setForm({ ...form, multiCurrencyEnabled: v })}
+          />
+          <p className="text-xs text-slate-500 -mt-2">
+            Если выключено — в формах продаж и закупок выбор валюты не показывается, всё считается в валюте по умолчанию.
+          </p>
+
+          <Field label="Ставка НДС по умолчанию для новых товаров">
+            <Select value={form.defaultVat} onChange={(e) => setForm({ ...form, defaultVat: Number(e.target.value) })}>
+              {vatChoices.map((v) => <option key={v} value={v}>{v}%</option>)}
+            </Select>
+          </Field>
+        </section>
+
+        <div className="mt-4 flex gap-3 items-center">
+          <Button onClick={() => save.mutate()} disabled={save.isPending}>
+            <Save className="w-4 h-4" /> {save.isPending ? 'Сохраняю…' : 'Сохранить'}
+          </Button>
+          {save.isSuccess && <span className="text-sm text-emerald-600">Сохранено</span>}
+          {save.error && <span className="text-sm text-red-600">{(save.error as Error).message}</span>}
+        </div>
+      </div>
+    </div>
+  )
+}

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

@@ -8,6 +8,7 @@ import { Field, TextInput, TextArea, Select, Checkbox } from '@/components/Field
 import {
   useUnits, useProductGroups, useCountries, useCurrencies, usePriceTypes, useSuppliers,
 } from '@/lib/useLookups'
+import { useOrgSettings } from '@/lib/useOrgSettings'
 import { BarcodeType, type Product } from '@/lib/types'
 
 interface PriceRow { id?: string; priceTypeId: string; amount: number; currencyId: string }
@@ -63,6 +64,7 @@ export function ProductEditPage() {
   const countries = useCountries()
   const currencies = useCurrencies()
   const priceTypes = usePriceTypes()
+  const org = useOrgSettings()
   const suppliers = useSuppliers()
 
   const existing = useQuery({
@@ -100,9 +102,16 @@ export function ProductEditPage() {
       setForm((f) => ({ ...f, unitOfMeasureId: units.data?.[0]?.id ?? '' }))
     }
     if (isNew && form.purchaseCurrencyId === '' && currencies.data?.length) {
-      setForm((f) => ({ ...f, purchaseCurrencyId: currencies.data?.find(c => c.code === 'KZT')?.id ?? currencies.data?.[0]?.id ?? '' }))
+      const def = org.data?.defaultCurrencyId
+        ? currencies.data?.find(c => c.id === org.data!.defaultCurrencyId)
+        : currencies.data?.find(c => c.code === 'KZT')
+      setForm((f) => ({ ...f, purchaseCurrencyId: def?.id ?? currencies.data?.[0]?.id ?? '' }))
     }
-  }, [isNew, units.data, currencies.data, form.unitOfMeasureId, form.purchaseCurrencyId])
+    // Default VAT для нового товара берём из настроек организации.
+    if (isNew && org.data?.defaultVat !== undefined && form.vat === 16 && org.data.defaultVat !== 16) {
+      setForm((f) => ({ ...f, vat: org.data!.defaultVat }))
+    }
+  }, [isNew, units.data, currencies.data, org.data?.defaultCurrencyId, org.data?.defaultVat, form.unitOfMeasureId, form.purchaseCurrencyId, form.vat])
 
   const save = useMutation({
     mutationFn: async () => {
@@ -278,12 +287,14 @@ export function ProductEditPage() {
               <Field label="Закупочная цена">
                 <TextInput type="number" step="0.01" value={form.purchasePrice} onChange={(e) => setForm({ ...form, purchasePrice: e.target.value })} />
               </Field>
-              <Field label="Валюта закупки">
-                <Select value={form.purchaseCurrencyId} onChange={(e) => setForm({ ...form, purchaseCurrencyId: e.target.value })}>
-                  <option value="">—</option>
-                  {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code}</option>)}
-                </Select>
-              </Field>
+              {org.data?.multiCurrencyEnabled && (
+                <Field label="Валюта закупки">
+                  <Select value={form.purchaseCurrencyId} onChange={(e) => setForm({ ...form, purchaseCurrencyId: e.target.value })}>
+                    <option value="">—</option>
+                    {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code}</option>)}
+                  </Select>
+                </Field>
+              )}
             </Grid>
           </Section>
 
@@ -308,19 +319,24 @@ export function ProductEditPage() {
               <div className="space-y-2">
                 {form.prices.map((p, i) => (
                   <div key={i} className="grid grid-cols-12 gap-2 items-center">
-                    <div className="col-span-6">
+                    <div className={org.data?.multiCurrencyEnabled ? 'col-span-6' : 'col-span-8'}>
                       <Select value={p.priceTypeId} onChange={(e) => updatePrice(i, { priceTypeId: e.target.value })}>
                         {priceTypes.data?.map((pt) => <option key={pt.id} value={pt.id}>{pt.name}</option>)}
                       </Select>
                     </div>
-                    <div className="col-span-3">
+                    <div className="col-span-3 flex items-center gap-2">
                       <TextInput type="number" step="0.01" value={p.amount} onChange={(e) => updatePrice(i, { amount: Number(e.target.value) })} />
+                      {!org.data?.multiCurrencyEnabled && (
+                        <span className="text-sm text-slate-500">{org.data?.defaultCurrencySymbol ?? ''}</span>
+                      )}
                     </div>
-                    <div className="col-span-2">
-                      <Select value={p.currencyId} onChange={(e) => updatePrice(i, { currencyId: e.target.value })}>
-                        {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code}</option>)}
-                      </Select>
-                    </div>
+                    {org.data?.multiCurrencyEnabled && (
+                      <div className="col-span-2">
+                        <Select value={p.currencyId} onChange={(e) => updatePrice(i, { currencyId: e.target.value })}>
+                          {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code}</option>)}
+                        </Select>
+                      </div>
+                    )}
                     <button
                       type="button"
                       onClick={() => removePrice(i)}

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

@@ -7,6 +7,7 @@ import { Button } from '@/components/Button'
 import { Field, TextInput, TextArea, Select } from '@/components/Field'
 import { ProductPicker } from '@/components/ProductPicker'
 import { useStores, useCurrencies, useSuppliers } from '@/lib/useLookups'
+import { useOrgSettings } from '@/lib/useOrgSettings'
 import { RetailSaleStatus, PaymentMethod, type RetailSaleDto, type Product } from '@/lib/types'
 
 interface LineRow {
@@ -51,6 +52,7 @@ 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)
@@ -95,10 +97,13 @@ export function RetailSaleEditPage() {
         setForm((f) => ({ ...f, storeId: stores.data!.find((s) => s.isMain)?.id ?? stores.data![0].id }))
       }
       if (!form.currencyId && currencies.data?.length) {
-        setForm((f) => ({ ...f, currencyId: currencies.data!.find((c) => c.code === 'KZT')?.id ?? currencies.data![0].id }))
+        const def = org.data?.defaultCurrencyId
+          ? currencies.data.find((c) => c.id === org.data!.defaultCurrencyId)
+          : currencies.data.find((c) => c.code === 'KZT')
+        if (def) setForm((f) => ({ ...f, currencyId: def.id }))
       }
     }
-  }, [isNew, stores.data, currencies.data, form.storeId, form.currencyId])
+  }, [isNew, stores.data, currencies.data, org.data?.defaultCurrencyId, form.storeId, form.currencyId])
 
   const isDraft = isNew || existing.data?.status === RetailSaleStatus.Draft
   const isPosted = existing.data?.status === RetailSaleStatus.Posted
@@ -253,13 +258,15 @@ export function RetailSaleEditPage() {
                   {stores.data?.map((s) => <option key={s.id} value={s.id}>{s.name}</option>)}
                 </Select>
               </Field>
-              <Field label="Валюта *">
-                <Select value={form.currencyId} disabled={isPosted}
-                  onChange={(e) => setForm({ ...form, currencyId: e.target.value })}>
-                  <option value="">—</option>
-                  {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code}</option>)}
-                </Select>
-              </Field>
+              {org.data?.multiCurrencyEnabled && (
+                <Field label="Валюта *">
+                  <Select value={form.currencyId} disabled={isPosted}
+                    onChange={(e) => setForm({ ...form, currencyId: e.target.value })}>
+                    <option value="">—</option>
+                    {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code}</option>)}
+                  </Select>
+                </Field>
+              )}
               <Field label="Покупатель (опц.)">
                 <Select value={form.customerId} disabled={isPosted}
                   onChange={(e) => setForm({ ...form, customerId: e.target.value })}>

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

@@ -7,6 +7,7 @@ import { Button } from '@/components/Button'
 import { Field, TextInput, TextArea, Select } from '@/components/Field'
 import { ProductPicker } from '@/components/ProductPicker'
 import { useStores, useCurrencies, useSuppliers } from '@/lib/useLookups'
+import { useOrgSettings } from '@/lib/useOrgSettings'
 import { SupplyStatus, type SupplyDto, type Product } from '@/lib/types'
 
 interface LineRow {
@@ -48,6 +49,7 @@ export function SupplyEditPage() {
 
   const stores = useStores()
   const currencies = useCurrencies()
+  const org = useOrgSettings()
   const suppliers = useSuppliers()
 
   const [form, setForm] = useState<Form>(emptyForm)
@@ -92,14 +94,16 @@ export function SupplyEditPage() {
         setForm((f) => ({ ...f, storeId: main.id }))
       }
       if (!form.currencyId && currencies.data?.length) {
-        const kzt = currencies.data.find((c) => c.code === 'KZT') ?? currencies.data[0]
-        setForm((f) => ({ ...f, currencyId: kzt.id }))
+        const def = org.data?.defaultCurrencyId
+          ? currencies.data.find((c) => c.id === org.data!.defaultCurrencyId)
+          : 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, form.storeId, form.currencyId, form.supplierId])
+  }, [isNew, stores.data, currencies.data, suppliers.data, org.data?.defaultCurrencyId, form.storeId, form.currencyId, form.supplierId])
 
   const isDraft = isNew || existing.data?.status === SupplyStatus.Draft
   const isPosted = existing.data?.status === SupplyStatus.Posted
@@ -252,13 +256,15 @@ export function SupplyEditPage() {
                   {stores.data?.map((s) => <option key={s.id} value={s.id}>{s.name}</option>)}
                 </Select>
               </Field>
-              <Field label="Валюта *">
-                <Select value={form.currencyId} disabled={isPosted}
-                  onChange={(e) => setForm({ ...form, currencyId: e.target.value })}>
-                  <option value="">—</option>
-                  {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code}</option>)}
-                </Select>
-              </Field>
+              {org.data?.multiCurrencyEnabled && (
+                <Field label="Валюта *">
+                  <Select value={form.currencyId} disabled={isPosted}
+                    onChange={(e) => setForm({ ...form, currencyId: e.target.value })}>
+                    <option value="">—</option>
+                    {currencies.data?.map((c) => <option key={c.id} value={c.id}>{c.code}</option>)}
+                  </Select>
+                </Field>
+              )}
               <Field label="№ накладной поставщика">
                 <TextInput value={form.supplierInvoiceNumber} disabled={isPosted}
                   onChange={(e) => setForm({ ...form, supplierInvoiceNumber: e.target.value })} />