feat(transfers): атомарное перемещение между складами (P1-3)

Domain Transfer+TransferLine (FromStoreId → ToStoreId, обязательны и различны).
EF, миграция Phase6c_Transfers. Контроллер api/inventory/transfers: CRUD +
Post/Unpost. Post создаёт ПАРУ движений TransferOut(-) + TransferIn(+) в
одной Serializable-транзакции; Unpost — обратная пара тоже атомарно.
Защита от ухода в минус: post (на FromStore), unpost (на ToStore — товар
мог быть уже расходован).

Web: /inventory/transfers (list+edit) с двумя селекторами складов и
визуализацией «From → To». Пункт «Перемещения» в сайдбаре. Permission
TransferEdit добавлен в RolePermissions.

Тесты: 4 интеграционных (post создаёт пару движений, unpost оставляет
ровно 4 движения и обнуляет stock-диффы; same-store → 400; short-stock
на FromStore → 409 без побочных эффектов; tenant-изоляция).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/food-market.api/Controllers/Inventory/TransfersController.cs

@@ -0,0 +1,459 @@
+using System.ComponentModel.DataAnnotations;
+using foodmarket.Application.Common;
+using foodmarket.Application.Inventory;
+using foodmarket.Domain.Inventory;
+using foodmarket.Infrastructure.Persistence;
+using foodmarket.Api.Infrastructure.Authorization;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace foodmarket.Api.Controllers.Inventory;
+
+/// <summary>Перемещение (Transfer): атомарное движение товара между складами.
+/// Post создаёт ПАРУ движений в <see cref="StockMovement"/>: TransferOut с
+/// отрицательным Quantity из FromStore + TransferIn с положительным в
+/// ToStore. Серьёзный кейс: post→unpost не должен оставить orphan-движений
+/// (только один из двух) — оба создаются и оба «отменяются» в одной
+/// транзакции.</summary>
+[ApiController]
+[Authorize]
+[Route("api/inventory/transfers")]
+public class TransfersController : ControllerBase
+{
+    private readonly AppDbContext _db;
+    private readonly IStockService _stock;
+
+    public TransfersController(AppDbContext db, IStockService stock)
+    {
+        _db = db;
+        _stock = stock;
+    }
+
+    public record TransferListRow(
+        Guid Id, string Number, DateTime Date, TransferStatus Status,
+        Guid FromStoreId, string FromStoreName,
+        Guid ToStoreId, string ToStoreName,
+        decimal Total, int LineCount,
+        DateTime? PostedAt);
+
+    public record TransferLineDto(
+        Guid? Id, Guid ProductId, string? ProductName, string? ProductArticle,
+        string? UnitSymbol,
+        decimal Quantity, decimal UnitCost, decimal LineTotal, int SortOrder,
+        decimal? StockAtFrom);
+
+    public record TransferDto(
+        Guid Id, string Number, DateTime Date, TransferStatus Status,
+        Guid FromStoreId, string FromStoreName,
+        Guid ToStoreId, string ToStoreName,
+        string? Notes,
+        decimal Total, DateTime? PostedAt,
+        IReadOnlyList<TransferLineDto> Lines);
+
+    public record TransferLineInput(
+        Guid ProductId,
+        [Range(0, 1e10)] decimal Quantity,
+        [Range(0, 1e10)] decimal UnitCost);
+
+    public record TransferInput(
+        DateTime Date, Guid FromStoreId, Guid ToStoreId,
+        string? Notes,
+        IReadOnlyList<TransferLineInput> Lines);
+
+    [HttpGet]
+    public async Task<ActionResult<PagedResult<TransferListRow>>> List(
+        [FromQuery] PagedRequest req,
+        [FromQuery] TransferStatus? status,
+        [FromQuery] Guid? fromStoreId,
+        [FromQuery] Guid? toStoreId,
+        CancellationToken ct)
+    {
+        var q = from t in _db.Transfers.AsNoTracking()
+                join fs in _db.Stores on t.FromStoreId equals fs.Id
+                join ts in _db.Stores on t.ToStoreId equals ts.Id
+                select new { t, fs, ts };
+
+        if (status is not null) q = q.Where(x => x.t.Status == status);
+        if (fromStoreId is not null) q = q.Where(x => x.t.FromStoreId == fromStoreId);
+        if (toStoreId is not null) q = q.Where(x => x.t.ToStoreId == toStoreId);
+        if (!string.IsNullOrWhiteSpace(req.Search))
+        {
+            var s = req.Search.Trim().ToLower();
+            q = q.Where(x => x.t.Number.ToLower().Contains(s));
+        }
+
+        var total = await q.CountAsync(ct);
+        q = (req.Sort, req.Desc) switch
+        {
+            ("number", false) => q.OrderBy(x => x.t.Number),
+            ("number", true) => q.OrderByDescending(x => x.t.Number),
+            ("status", false) => q.OrderBy(x => x.t.Status).ThenByDescending(x => x.t.Date),
+            ("status", true) => q.OrderByDescending(x => x.t.Status).ThenByDescending(x => x.t.Date),
+            ("total", false) => q.OrderBy(x => x.t.Total).ThenByDescending(x => x.t.Date),
+            ("total", true) => q.OrderByDescending(x => x.t.Total).ThenByDescending(x => x.t.Date),
+            ("date", false) => q.OrderBy(x => x.t.Date).ThenBy(x => x.t.Number),
+            _ => q.OrderByDescending(x => x.t.Date).ThenByDescending(x => x.t.Number),
+        };
+        var items = await q
+            .Skip(req.Skip).Take(req.Take)
+            .Select(x => new TransferListRow(
+                x.t.Id, x.t.Number, x.t.Date, x.t.Status,
+                x.fs.Id, x.fs.Name,
+                x.ts.Id, x.ts.Name,
+                x.t.Total,
+                x.t.Lines.Count,
+                x.t.PostedAt))
+            .ToListAsync(ct);
+
+        return new PagedResult<TransferListRow> { Items = items, Total = total, Page = req.Page, PageSize = req.Take };
+    }
+
+    [HttpGet("{id:guid}")]
+    public async Task<ActionResult<TransferDto>> Get(Guid id, CancellationToken ct)
+    {
+        var dto = await GetInternal(id, ct);
+        return dto is null ? NotFound() : Ok(dto);
+    }
+
+    [HttpPost, RequiresPermission("TransferEdit")]
+    public async Task<ActionResult<TransferDto>> Create([FromBody] TransferInput input, CancellationToken ct)
+    {
+        if (RequiredGuid.FirstMissing(
+                (nameof(input.FromStoreId), input.FromStoreId),
+                (nameof(input.ToStoreId), input.ToStoreId)) is { } missing)
+            return BadRequest(new { error = $"Поле {missing} обязательно.", field = missing });
+        if (input.FromStoreId == input.ToStoreId)
+            return BadRequest(new { error = "Склад-отправитель и склад-получатель должны различаться.", field = "toStoreId" });
+        if (input.Lines is null || input.Lines.Count == 0)
+            return BadRequest(new { error = "Перемещение должно содержать хотя бы одну позицию." });
+
+        var number = await GenerateNumberAsync(input.Date, ct);
+        var t = new Transfer
+        {
+            Number = number,
+            Date = input.Date,
+            Status = TransferStatus.Draft,
+            FromStoreId = input.FromStoreId,
+            ToStoreId = input.ToStoreId,
+            Notes = input.Notes,
+        };
+        var order = 0;
+        foreach (var l in input.Lines)
+        {
+            t.Lines.Add(new TransferLine
+            {
+                ProductId = l.ProductId,
+                Quantity = l.Quantity,
+                UnitCost = l.UnitCost,
+                LineTotal = l.Quantity * l.UnitCost,
+                SortOrder = order++,
+            });
+        }
+        t.Total = t.Lines.Sum(x => x.LineTotal);
+
+        _db.Transfers.Add(t);
+        if (await SaveOrFkErrorAsync(ct) is { } err) return err;
+        var dto = await GetInternal(t.Id, ct);
+        return CreatedAtAction(nameof(Get), new { id = t.Id }, dto);
+    }
+
+    private async Task<ActionResult?> SaveOrFkErrorAsync(CancellationToken ct)
+    {
+        try
+        {
+            await _db.SaveChangesAsync(ct);
+            return null;
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is Npgsql.PostgresException pg && pg.SqlState == "23503")
+        {
+            var name = pg.ConstraintName ?? "";
+            string field = name.Contains("FromStore") ? "fromStoreId"
+                         : name.Contains("ToStore") ? "toStoreId"
+                         : name.Contains("Product") ? "productId"
+                         : "(unknown)";
+            return BadRequest(new { error = $"Связанная запись не найдена: {field}.", field, constraint = name });
+        }
+    }
+
+    [HttpPut("{id:guid}"), RequiresPermission("TransferEdit")]
+    public async Task<IActionResult> Update(Guid id, [FromBody] TransferInput input, CancellationToken ct)
+    {
+        if (RequiredGuid.FirstMissing(
+                (nameof(input.FromStoreId), input.FromStoreId),
+                (nameof(input.ToStoreId), input.ToStoreId)) is { } missing)
+            return BadRequest(new { error = $"Поле {missing} обязательно.", field = missing });
+        if (input.FromStoreId == input.ToStoreId)
+            return BadRequest(new { error = "Склад-отправитель и склад-получатель должны различаться.", field = "toStoreId" });
+        if (input.Lines is null || input.Lines.Count == 0)
+            return BadRequest(new { error = "Перемещение должно содержать хотя бы одну позицию." });
+
+        var t = await _db.Transfers.Include(x => x.Lines).FirstOrDefaultAsync(x => x.Id == id, ct);
+        if (t is null) return NotFound();
+        if (t.Status != TransferStatus.Draft)
+            return Conflict(new { error = "Только черновик может быть изменён. Сначала отмени проведение." });
+
+        t.Date = input.Date;
+        t.FromStoreId = input.FromStoreId;
+        t.ToStoreId = input.ToStoreId;
+        t.Notes = input.Notes;
+
+        _db.TransferLines.RemoveRange(t.Lines);
+        t.Lines.Clear();
+        var order = 0;
+        foreach (var l in input.Lines)
+        {
+            t.Lines.Add(new TransferLine
+            {
+                TransferId = t.Id,
+                ProductId = l.ProductId,
+                Quantity = l.Quantity,
+                UnitCost = l.UnitCost,
+                LineTotal = l.Quantity * l.UnitCost,
+                SortOrder = order++,
+            });
+        }
+        t.Total = t.Lines.Sum(x => x.LineTotal);
+
+        if (await SaveOrFkErrorAsync(ct) is { } err) return err;
+        return NoContent();
+    }
+
+    [HttpDelete("{id:guid}"), RequiresPermission("TransferEdit")]
+    public async Task<IActionResult> Delete(Guid id, CancellationToken ct)
+    {
+        var t = await _db.Transfers.FirstOrDefaultAsync(x => x.Id == id, ct);
+        if (t is null) return NotFound();
+        if (t.Status != TransferStatus.Draft)
+            return Conflict(new { error = "Нельзя удалить проведённый документ. Сначала отмени проведение." });
+        _db.Transfers.Remove(t);
+        await _db.SaveChangesAsync(ct);
+        return NoContent();
+    }
+
+    [HttpPost("{id:guid}/post"), RequiresPermission("TransferEdit")]
+    public async Task<IActionResult> Post(Guid id, CancellationToken ct)
+    {
+        var t = await _db.Transfers.Include(x => x.Lines).FirstOrDefaultAsync(x => x.Id == id, ct);
+        if (t is null) return NotFound();
+        if (t.Status == TransferStatus.Posted) return Conflict(new { error = "Документ уже проведён." });
+        if (t.Lines.Count == 0) return BadRequest(new { error = "Нельзя провести документ без строк." });
+
+        // Проверка: на FromStore хватает товара (нельзя уйти в минус).
+        var byProduct = t.Lines.GroupBy(l => l.ProductId)
+            .Select(g => new { ProductId = g.Key, Quantity = g.Sum(x => x.Quantity) }).ToList();
+        var productIds = byProduct.Select(x => x.ProductId).ToList();
+        var stocks = await _db.Stocks
+            .Where(s => s.StoreId == t.FromStoreId && productIds.Contains(s.ProductId))
+            .ToDictionaryAsync(s => s.ProductId, s => s.Quantity, ct);
+        var conflicts = new List<object>();
+        foreach (var r in byProduct)
+        {
+            stocks.TryGetValue(r.ProductId, out var available);
+            if (available < r.Quantity)
+            {
+                var name = await _db.Products.Where(p => p.Id == r.ProductId)
+                    .Select(p => p.Name).FirstOrDefaultAsync(ct);
+                conflicts.Add(new
+                {
+                    productId = r.ProductId,
+                    productName = name,
+                    requested = r.Quantity,
+                    available,
+                });
+            }
+        }
+        if (conflicts.Count > 0)
+        {
+            return Conflict(new
+            {
+                error = "На складе-отправителе недостаточно товара.",
+                lines = conflicts,
+            });
+        }
+
+        // Атомарная транзакция: пара движений (Out + In) — либо обе, либо ни одной.
+        await using var tx = await _db.Database.BeginTransactionAsync(
+            System.Data.IsolationLevel.Serializable, ct);
+        var now = DateTime.UtcNow;
+
+        foreach (var line in t.Lines)
+        {
+            await _stock.ApplyMovementAsync(new StockMovementDraft(
+                ProductId: line.ProductId,
+                StoreId: t.FromStoreId,
+                Quantity: -line.Quantity,
+                Type: MovementType.TransferOut,
+                DocumentType: "transfer-out",
+                DocumentId: t.Id,
+                DocumentNumber: t.Number,
+                UnitCost: line.UnitCost,
+                OccurredAt: t.Date), ct);
+            await _stock.ApplyMovementAsync(new StockMovementDraft(
+                ProductId: line.ProductId,
+                StoreId: t.ToStoreId,
+                Quantity: line.Quantity,
+                Type: MovementType.TransferIn,
+                DocumentType: "transfer-in",
+                DocumentId: t.Id,
+                DocumentNumber: t.Number,
+                UnitCost: line.UnitCost,
+                OccurredAt: t.Date), ct);
+        }
+
+        t.Status = TransferStatus.Posted;
+        t.PostedAt = now;
+        try
+        {
+            await _db.SaveChangesAsync(ct);
+            await tx.CommitAsync(ct);
+        }
+        catch (Exception ex) when (IsSerializationConflict(ex))
+        {
+            return Conflict(new { error = "Документ проводится параллельно другим запросом. Повторите попытку." });
+        }
+        return NoContent();
+    }
+
+    [HttpPost("{id:guid}/unpost"), RequiresPermission("TransferEdit")]
+    public async Task<IActionResult> Unpost(Guid id, CancellationToken ct)
+    {
+        var t = await _db.Transfers.Include(x => x.Lines).FirstOrDefaultAsync(x => x.Id == id, ct);
+        if (t is null) return NotFound();
+        if (t.Status != TransferStatus.Posted) return Conflict(new { error = "Документ не проведён." });
+
+        // Reverse: на ToStore должен хватать товар (могли уже использовать).
+        var byProduct = t.Lines.GroupBy(l => l.ProductId)
+            .Select(g => new { ProductId = g.Key, Quantity = g.Sum(x => x.Quantity) }).ToList();
+        var productIds = byProduct.Select(x => x.ProductId).ToList();
+        var stocks = await _db.Stocks
+            .Where(s => s.StoreId == t.ToStoreId && productIds.Contains(s.ProductId))
+            .ToDictionaryAsync(s => s.ProductId, s => s.Quantity, ct);
+        var conflicts = new List<object>();
+        foreach (var r in byProduct)
+        {
+            stocks.TryGetValue(r.ProductId, out var available);
+            if (available < r.Quantity)
+            {
+                var name = await _db.Products.Where(p => p.Id == r.ProductId)
+                    .Select(p => p.Name).FirstOrDefaultAsync(ct);
+                conflicts.Add(new
+                {
+                    productId = r.ProductId,
+                    productName = name,
+                    reverseQty = r.Quantity,
+                    availableAtTo = available,
+                });
+            }
+        }
+        if (conflicts.Count > 0)
+        {
+            return Conflict(new
+            {
+                error = "Нельзя отменить перемещение: на складе-получателе недостаточно товара (часть уже расходована).",
+                lines = conflicts,
+            });
+        }
+
+        // Атомарная транзакция: пара обратных движений.
+        await using var tx = await _db.Database.BeginTransactionAsync(
+            System.Data.IsolationLevel.Serializable, ct);
+        foreach (var line in t.Lines)
+        {
+            // Возвращаем на FromStore (+Quantity).
+            await _stock.ApplyMovementAsync(new StockMovementDraft(
+                ProductId: line.ProductId,
+                StoreId: t.FromStoreId,
+                Quantity: line.Quantity,
+                Type: MovementType.TransferOut,
+                DocumentType: "transfer-out-reversal",
+                DocumentId: t.Id,
+                DocumentNumber: t.Number,
+                UnitCost: line.UnitCost,
+                OccurredAt: DateTime.UtcNow,
+                Notes: $"Отмена проведения документа {t.Number}"), ct);
+            // Снимаем с ToStore (-Quantity).
+            await _stock.ApplyMovementAsync(new StockMovementDraft(
+                ProductId: line.ProductId,
+                StoreId: t.ToStoreId,
+                Quantity: -line.Quantity,
+                Type: MovementType.TransferIn,
+                DocumentType: "transfer-in-reversal",
+                DocumentId: t.Id,
+                DocumentNumber: t.Number,
+                UnitCost: line.UnitCost,
+                OccurredAt: DateTime.UtcNow,
+                Notes: $"Отмена проведения документа {t.Number}"), ct);
+        }
+
+        t.Status = TransferStatus.Draft;
+        t.PostedAt = null;
+        try
+        {
+            await _db.SaveChangesAsync(ct);
+            await tx.CommitAsync(ct);
+        }
+        catch (Exception ex) when (IsSerializationConflict(ex))
+        {
+            return Conflict(new { error = "Документ обрабатывается параллельно. Повторите попытку." });
+        }
+        return NoContent();
+    }
+
+    private static bool IsSerializationConflict(Exception ex)
+    {
+        for (Exception? e = ex; e is not null; e = e.InnerException)
+        {
+            if (e is System.Data.Common.DbException { SqlState: "40001" or "40P01" })
+                return true;
+        }
+        return false;
+    }
+
+    private async Task<string> GenerateNumberAsync(DateTime date, CancellationToken ct)
+    {
+        var year = date.Year;
+        var prefix = $"П-{year}-Т-";
+        var lastNumber = await _db.Transfers
+            .Where(t => t.Number.StartsWith(prefix))
+            .OrderByDescending(t => t.Number)
+            .Select(t => t.Number)
+            .FirstOrDefaultAsync(ct);
+
+        var seq = 1;
+        if (lastNumber is not null && int.TryParse(lastNumber[prefix.Length..], out var last))
+            seq = last + 1;
+        return $"{prefix}{seq:D6}";
+    }
+
+    private async Task<TransferDto?> GetInternal(Guid id, CancellationToken ct)
+    {
+        var row = await (from t in _db.Transfers.AsNoTracking()
+                         join fs in _db.Stores on t.FromStoreId equals fs.Id
+                         join ts in _db.Stores on t.ToStoreId equals ts.Id
+                         where t.Id == id
+                         select new { t, fs, ts }).FirstOrDefaultAsync(ct);
+        if (row is null) return null;
+
+        var lines = await (from l in _db.TransferLines.AsNoTracking()
+                           join p in _db.Products on l.ProductId equals p.Id
+                           join u in _db.UnitsOfMeasure on p.UnitOfMeasureId equals u.Id
+                           where l.TransferId == id
+                           orderby l.SortOrder
+                           select new TransferLineDto(
+                               l.Id, l.ProductId, p.Name, p.Article,
+                               u.Name,
+                               l.Quantity, l.UnitCost, l.LineTotal, l.SortOrder,
+                               _db.Stocks.Where(s => s.ProductId == l.ProductId && s.StoreId == row.t.FromStoreId)
+                                   .Select(s => (decimal?)s.Quantity).FirstOrDefault()))
+                          .ToListAsync(ct);
+
+        return new TransferDto(
+            row.t.Id, row.t.Number, row.t.Date, row.t.Status,
+            row.fs.Id, row.fs.Name,
+            row.ts.Id, row.ts.Name,
+            row.t.Notes,
+            row.t.Total, row.t.PostedAt,
+            lines);
+    }
+}

src/food-market.domain/Inventory/Transfer.cs

@@ -0,0 +1,55 @@
+using foodmarket.Domain.Catalog;
+using foodmarket.Domain.Common;
+
+namespace foodmarket.Domain.Inventory;
+
+public enum TransferStatus
+{
+    Draft = 0,
+    Posted = 1,
+}
+
+/// <summary>Документ перемещения товара между складами одной организации.
+/// При проведении создаёт ПАРУ движений: TransferOut из FromStore и
+/// TransferIn в ToStore (атомарной транзакцией). Unpost тоже атомарен —
+/// возвращает обратно ОБА движения. Никогда не должно остаться orphan-движений
+/// (только один из двух).</summary>
+public class Transfer : TenantEntity
+{
+    public string Number { get; set; } = "";
+    public DateTime Date { get; set; } = DateTime.UtcNow;
+    public TransferStatus Status { get; set; } = TransferStatus.Draft;
+
+    public Guid FromStoreId { get; set; }
+    public Store FromStore { get; set; } = null!;
+
+    public Guid ToStoreId { get; set; }
+    public Store ToStore { get; set; } = null!;
+
+    public string? Notes { get; set; }
+
+    /// <summary>Балансовая сумма перемещения = Σ Quantity·UnitCost (только для отчётов;
+    /// при проведении не влияет на Product.Cost).</summary>
+    public decimal Total { get; set; }
+
+    public DateTime? PostedAt { get; set; }
+    public Guid? PostedByUserId { get; set; }
+
+    public ICollection<TransferLine> Lines { get; set; } = new List<TransferLine>();
+}
+
+public class TransferLine : TenantEntity
+{
+    public Guid TransferId { get; set; }
+    public Transfer Transfer { get; set; } = null!;
+
+    public Guid ProductId { get; set; }
+    public Product Product { get; set; } = null!;
+
+    public decimal Quantity { get; set; }
+    /// <summary>Балансовая цена единицы (снимок Product.Cost). На остатках не отражается.</summary>
+    public decimal UnitCost { get; set; }
+    public decimal LineTotal { get; set; }
+
+    public int SortOrder { get; set; }
+}

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

@@ -35,6 +35,7 @@ public class RolePermissions
     public bool InventoryEdit { get; set; }
     public bool LossEdit { get; set; }
     public bool EnterEdit { get; set; }
+    public bool TransferEdit { get; set; }
 
     // Отчёты
     public bool ReportsView { get; set; }
@@ -59,7 +60,7 @@ public static RolePermissions All() => new()
         DemandsView = true, DemandsEdit = true, DemandsPost = true,
         RetailSalesOperate = true, RetailSalesRefund = true,
         CounterpartiesView = true, CounterpartiesEdit = true, CounterpartiesDelete = true,
-        StocksView = true, InventoryEdit = true, LossEdit = true, EnterEdit = true,
+        StocksView = true, InventoryEdit = true, LossEdit = true, EnterEdit = true, TransferEdit = true,
         ReportsView = true, ReportsFinanceView = true, ReportsStockView = true,
         OrgSettingsManage = true, EmployeesManage = true, RolesManage = true,
         StoresManage = true, RetailPointsManage = true,

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

@@ -50,6 +50,9 @@ public AppDbContext(DbContextOptions<AppDbContext> options, ITenantContext tenan
     public DbSet<Loss> Losses => Set<Loss>();
     public DbSet<LossLine> LossLines => Set<LossLine>();
 
+    public DbSet<Transfer> Transfers => Set<Transfer>();
+    public DbSet<TransferLine> TransferLines => Set<TransferLine>();
+
     public DbSet<RetailSale> RetailSales => Set<RetailSale>();
     public DbSet<RetailSaleLine> RetailSaleLines => Set<RetailSaleLine>();
 

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

@@ -67,5 +67,34 @@ public static void ConfigureInventory(this ModelBuilder b)
 
             e.HasIndex(x => new { x.OrganizationId, x.ProductId });
         });
+
+        b.Entity<Transfer>(e =>
+        {
+            e.ToTable("transfers");
+            e.Property(x => x.Number).HasMaxLength(50).IsRequired();
+            e.Property(x => x.Notes).HasMaxLength(1000);
+            e.Property(x => x.Total).HasPrecision(18, 4);
+
+            e.HasOne(x => x.FromStore).WithMany().HasForeignKey(x => x.FromStoreId).OnDelete(DeleteBehavior.Restrict);
+            e.HasOne(x => x.ToStore).WithMany().HasForeignKey(x => x.ToStoreId).OnDelete(DeleteBehavior.Restrict);
+
+            e.HasMany(x => x.Lines).WithOne(l => l.Transfer).HasForeignKey(l => l.TransferId).OnDelete(DeleteBehavior.Cascade);
+
+            e.HasIndex(x => new { x.OrganizationId, x.Number }).IsUnique();
+            e.HasIndex(x => new { x.OrganizationId, x.Date });
+            e.HasIndex(x => new { x.OrganizationId, x.Status });
+        });
+
+        b.Entity<TransferLine>(e =>
+        {
+            e.ToTable("transfer_lines");
+            e.Property(x => x.Quantity).HasPrecision(18, 4);
+            e.Property(x => x.UnitCost).HasPrecision(18, 4);
+            e.Property(x => x.LineTotal).HasPrecision(18, 4);
+
+            e.HasOne(x => x.Product).WithMany().HasForeignKey(x => x.ProductId).OnDelete(DeleteBehavior.Restrict);
+
+            e.HasIndex(x => new { x.OrganizationId, x.ProductId });
+        });
     }
 }

src/food-market.infrastructure/Persistence/Migrations/20260528020000_Phase6c_Transfers.cs

@@ -0,0 +1,74 @@
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using foodmarket.Infrastructure.Persistence;
+
+#nullable disable
+
+namespace foodmarket.Infrastructure.Persistence.Migrations
+{
+    /// <summary>Phase6c — перемещение (Transfer).
+    ///
+    /// Документ перемещения товара между складами одной организации. При
+    /// проведении создаётся ПАРА движений в stock_movements: TransferOut
+    /// (-Qty из FromStore) + TransferIn (+Qty в ToStore). Атомарно.</summary>
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260528020000_Phase6c_Transfers")]
+    public partial class Phase6c_Transfers : Migration
+    {
+        protected override void Up(MigrationBuilder b)
+        {
+            b.Sql(@"
+                CREATE TABLE IF NOT EXISTS public.transfers (
+                    ""Id""               uuid PRIMARY KEY,
+                    ""OrganizationId""   uuid NOT NULL,
+                    ""Number""           varchar(50) NOT NULL,
+                    ""Date""             timestamp with time zone NOT NULL,
+                    ""Status""           integer NOT NULL,
+                    ""FromStoreId""      uuid NOT NULL,
+                    ""ToStoreId""        uuid NOT NULL,
+                    ""Notes""            varchar(1000),
+                    ""Total""            numeric(18,4) NOT NULL,
+                    ""PostedAt""         timestamp with time zone,
+                    ""PostedByUserId""   uuid,
+                    ""CreatedAt""        timestamp with time zone NOT NULL,
+                    ""UpdatedAt""        timestamp with time zone,
+                    CONSTRAINT ""FK_transfers_stores_FromStoreId"" FOREIGN KEY (""FromStoreId"") REFERENCES public.stores(""Id"") ON DELETE RESTRICT,
+                    CONSTRAINT ""FK_transfers_stores_ToStoreId"" FOREIGN KEY (""ToStoreId"") REFERENCES public.stores(""Id"") ON DELETE RESTRICT
+                );
+
+                CREATE UNIQUE INDEX IF NOT EXISTS ""IX_transfers_OrganizationId_Number"" ON public.transfers (""OrganizationId"", ""Number"");
+                CREATE INDEX IF NOT EXISTS ""IX_transfers_OrganizationId_Date"" ON public.transfers (""OrganizationId"", ""Date"");
+                CREATE INDEX IF NOT EXISTS ""IX_transfers_OrganizationId_Status"" ON public.transfers (""OrganizationId"", ""Status"");
+                CREATE INDEX IF NOT EXISTS ""IX_transfers_FromStoreId"" ON public.transfers (""FromStoreId"");
+                CREATE INDEX IF NOT EXISTS ""IX_transfers_ToStoreId"" ON public.transfers (""ToStoreId"");
+
+                CREATE TABLE IF NOT EXISTS public.transfer_lines (
+                    ""Id""               uuid PRIMARY KEY,
+                    ""OrganizationId""   uuid NOT NULL,
+                    ""TransferId""       uuid NOT NULL,
+                    ""ProductId""        uuid NOT NULL,
+                    ""Quantity""         numeric(18,4) NOT NULL,
+                    ""UnitCost""         numeric(18,4) NOT NULL,
+                    ""LineTotal""        numeric(18,4) NOT NULL,
+                    ""SortOrder""        integer NOT NULL,
+                    ""CreatedAt""        timestamp with time zone NOT NULL,
+                    ""UpdatedAt""        timestamp with time zone,
+                    CONSTRAINT ""FK_transfer_lines_transfers_TransferId"" FOREIGN KEY (""TransferId"") REFERENCES public.transfers(""Id"") ON DELETE CASCADE,
+                    CONSTRAINT ""FK_transfer_lines_products_ProductId"" FOREIGN KEY (""ProductId"") REFERENCES public.products(""Id"") ON DELETE RESTRICT
+                );
+
+                CREATE INDEX IF NOT EXISTS ""IX_transfer_lines_TransferId"" ON public.transfer_lines (""TransferId"");
+                CREATE INDEX IF NOT EXISTS ""IX_transfer_lines_ProductId"" ON public.transfer_lines (""ProductId"");
+                CREATE INDEX IF NOT EXISTS ""IX_transfer_lines_OrganizationId_ProductId"" ON public.transfer_lines (""OrganizationId"", ""ProductId"");
+            ");
+        }
+
+        protected override void Down(MigrationBuilder b)
+        {
+            b.Sql(@"
+                DROP TABLE IF EXISTS public.transfer_lines;
+                DROP TABLE IF EXISTS public.transfers;
+            ");
+        }
+    }
+}

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

@@ -32,6 +32,8 @@ import { EntersPage } from '@/pages/EntersPage'
 import { EnterEditPage } from '@/pages/EnterEditPage'
 import { LossesPage } from '@/pages/LossesPage'
 import { LossEditPage } from '@/pages/LossEditPage'
+import { TransfersPage } from '@/pages/TransfersPage'
+import { TransferEditPage } from '@/pages/TransferEditPage'
 import { RetailSalesPage } from '@/pages/RetailSalesPage'
 import { RetailSaleEditPage } from '@/pages/RetailSaleEditPage'
 import { AppLayout } from '@/components/AppLayout'
@@ -110,6 +112,9 @@ export default function App() {
               <Route path="/inventory/losses" element={<LossesPage />} />
               <Route path="/inventory/losses/new" element={<LossEditPage />} />
               <Route path="/inventory/losses/:id" element={<LossEditPage />} />
+              <Route path="/inventory/transfers" element={<TransfersPage />} />
+              <Route path="/inventory/transfers/new" element={<TransferEditPage />} />
+              <Route path="/inventory/transfers/:id" element={<TransferEditPage />} />
               <Route path="/sales/retail" element={<RetailSalesPage />} />
               <Route path="/sales/retail/new" element={<RetailSaleEditPage />} />
               <Route path="/sales/retail/:id" element={<RetailSaleEditPage />} />

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

@@ -7,7 +7,7 @@ import { cn } from '@/lib/utils'
 import {
   LayoutDashboard, Package, FolderTree, Ruler, Tag,
   Users, Warehouse, Store as StoreIcon, LogOut, Download, UserCog, Shield, ShieldCheck,
-  Boxes, History, TruckIcon, ShoppingCart, Settings, Menu, X, PackagePlus, PackageMinus,
+  Boxes, History, TruckIcon, ShoppingCart, Settings, Menu, X, PackagePlus, PackageMinus, ArrowRightLeft,
 } from 'lucide-react'
 import { Logo } from './Logo'
 import { SuperAdminAsOrgBanner } from './SuperAdminAsOrgBanner'
@@ -87,6 +87,7 @@ function buildNav(roles: string[]): NavSection[] {
       stock.push({ to: '/inventory/movements', icon: History, label: 'Движения' })
       stock.push({ to: '/inventory/enters', icon: PackagePlus, label: 'Оприходования' })
       stock.push({ to: '/inventory/losses', icon: PackageMinus, label: 'Списания' })
+      stock.push({ to: '/inventory/transfers', icon: ArrowRightLeft, label: 'Перемещения' })
     }
     sections.push({ group: 'Остатки', items: stock })
   }

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

@@ -173,6 +173,32 @@ export interface LossDto {
   lines: LossLineDto[];
 }
 
+export const TransferStatus = { Draft: 0, Posted: 1 } as const
+export type TransferStatus = (typeof TransferStatus)[keyof typeof TransferStatus]
+
+export interface TransferListRow {
+  id: string; number: string; date: string; status: TransferStatus;
+  fromStoreId: string; fromStoreName: string;
+  toStoreId: string; toStoreName: string;
+  total: number; lineCount: number; postedAt: string | null;
+}
+
+export interface TransferLineDto {
+  id: string | null; productId: string;
+  productName: string | null; productArticle: string | null; unitSymbol: string | null;
+  quantity: number; unitCost: number; lineTotal: number; sortOrder: number;
+  stockAtFrom: number | null;
+}
+
+export interface TransferDto {
+  id: string; number: string; date: string; status: TransferStatus;
+  fromStoreId: string; fromStoreName: string;
+  toStoreId: string; toStoreName: string;
+  notes: string | null;
+  total: number; postedAt: string | null;
+  lines: TransferLineDto[];
+}
+
 export const RetailSaleStatus = { Draft: 0, Posted: 1 } as const
 export type RetailSaleStatus = (typeof RetailSaleStatus)[keyof typeof RetailSaleStatus]
 

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

@@ -0,0 +1,344 @@
+import { useState, useEffect, type FormEvent } from 'react'
+import { useNavigate, useParams, Link } from 'react-router-dom'
+import { useQuery, useQueryClient, useMutation } from '@tanstack/react-query'
+import { ArrowLeft, ArrowRight, Plus, Trash2, Save, CheckCircle } from 'lucide-react'
+import { api } from '@/lib/api'
+import { Button } from '@/components/Button'
+import { Field, TextArea, Select, MoneyInput, NumberInput, Checkbox } from '@/components/Field'
+import { DateField } from '@/components/DateField'
+import { ProductPicker } from '@/components/ProductPicker'
+import { useStores } from '@/lib/useLookups'
+import { useOrgSettings } from '@/lib/useOrgSettings'
+import { TransferStatus, type TransferDto, type Product } from '@/lib/types'
+
+interface LineRow {
+  productId: string
+  productName: string
+  productArticle: string | null
+  unitSymbol: string | null
+  quantity: number
+  unitCost: number
+  stockAtFrom: number | null
+}
+
+interface Form {
+  date: string
+  fromStoreId: string
+  toStoreId: string
+  notes: string
+  lines: LineRow[]
+}
+
+const todayIso = () => {
+  const d = new Date()
+  return `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')}`
+}
+
+const emptyForm: Form = {
+  date: todayIso(), fromStoreId: '', toStoreId: '', notes: '', lines: [],
+}
+
+export function TransferEditPage() {
+  const { id } = useParams<{ id: string }>()
+  const isNew = !id || id === 'new'
+  const navigate = useNavigate()
+  const qc = useQueryClient()
+
+  const stores = useStores()
+  const org = useOrgSettings()
+
+  const [form, setForm] = useState<Form>(emptyForm)
+  const [pickerOpen, setPickerOpen] = useState(false)
+  const [error, setError] = useState<string | null>(null)
+
+  const existing = useQuery({
+    queryKey: ['/api/inventory/transfers', id],
+    queryFn: async () => (await api.get<TransferDto>(`/api/inventory/transfers/${id}`)).data,
+    enabled: !isNew,
+  })
+
+  useEffect(() => {
+    if (!isNew && existing.data) {
+      const s = existing.data
+      setForm({
+        date: s.date.slice(0, 10),
+        fromStoreId: s.fromStoreId,
+        toStoreId: s.toStoreId,
+        notes: s.notes ?? '',
+        lines: s.lines.map((l) => ({
+          productId: l.productId,
+          productName: l.productName ?? '',
+          productArticle: l.productArticle,
+          unitSymbol: l.unitSymbol,
+          quantity: l.quantity,
+          unitCost: l.unitCost,
+          stockAtFrom: l.stockAtFrom,
+        })),
+      })
+    }
+  }, [isNew, existing.data])
+
+  const isDraft = isNew || existing.data?.status === TransferStatus.Draft
+  const isPosted = existing.data?.status === TransferStatus.Posted
+
+  const lineTotal = (l: LineRow) => l.quantity * l.unitCost
+  const grandTotal = form.lines.reduce((s, l) => s + lineTotal(l), 0)
+  const sameStore = !!form.fromStoreId && form.fromStoreId === form.toStoreId
+
+  const save = useMutation({
+    mutationFn: async () => {
+      const payload = {
+        date: new Date(form.date).toISOString(),
+        fromStoreId: form.fromStoreId,
+        toStoreId: form.toStoreId,
+        notes: form.notes || null,
+        lines: form.lines.map((l) => ({
+          productId: l.productId, quantity: l.quantity, unitCost: l.unitCost,
+        })),
+      }
+      if (isNew) return (await api.post<TransferDto>('/api/inventory/transfers', payload)).data
+      await api.put(`/api/inventory/transfers/${id}`, payload)
+      return null
+    },
+    onSuccess: (created) => {
+      qc.invalidateQueries({ queryKey: ['/api/inventory/transfers'] })
+      navigate(created ? `/inventory/transfers/${created.id}` : `/inventory/transfers/${id}`)
+    },
+    onError: (e: Error) => setError(e.message),
+  })
+
+  const post = useMutation({
+    mutationFn: async () => { await api.post(`/api/inventory/transfers/${id}/post`) },
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ['/api/inventory/transfers'] })
+      qc.invalidateQueries({ queryKey: ['/api/inventory/stock'] })
+      qc.invalidateQueries({ queryKey: ['/api/inventory/movements'] })
+      existing.refetch()
+    },
+    onError: (e: Error) => {
+      const msg = (e as { response?: { data?: { error?: string } } }).response?.data?.error ?? e.message
+      setError(msg)
+    },
+  })
+
+  const unpost = useMutation({
+    mutationFn: async () => { await api.post(`/api/inventory/transfers/${id}/unpost`) },
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ['/api/inventory/transfers'] })
+      qc.invalidateQueries({ queryKey: ['/api/inventory/stock'] })
+      qc.invalidateQueries({ queryKey: ['/api/inventory/movements'] })
+      existing.refetch()
+    },
+    onError: (e: Error) => {
+      const msg = (e as { response?: { data?: { error?: string } } }).response?.data?.error ?? e.message
+      setError(msg)
+    },
+  })
+
+  const remove = useMutation({
+    mutationFn: async () => { await api.delete(`/api/inventory/transfers/${id}`) },
+    onSuccess: () => navigate('/inventory/transfers'),
+    onError: (e: Error) => setError(e.message),
+  })
+
+  const onSubmit = (e: FormEvent) => { e.preventDefault(); save.mutate() }
+
+  const addLineFromProduct = (p: Product) => {
+    setForm({
+      ...form,
+      lines: [...form.lines, {
+        productId: p.id,
+        productName: p.name,
+        productArticle: p.article,
+        unitSymbol: p.unitName,
+        quantity: 1,
+        unitCost: p.cost ?? 0,
+        stockAtFrom: null,
+      }],
+    })
+  }
+  const updateLine = (i: number, patch: Partial<LineRow>) =>
+    setForm({ ...form, lines: form.lines.map((l, ix) => ix === i ? { ...l, ...patch } : l) })
+  const removeLine = (i: number) =>
+    setForm({ ...form, lines: form.lines.filter((_, ix) => ix !== i) })
+
+  const canSave = !!form.date && !!form.fromStoreId && !!form.toStoreId && !sameStore
+    && form.lines.length > 0 && isDraft
+
+  const fractional = org.data?.allowFractionalPrices ?? false
+  const moneyFmt = fractional
+    ? { minimumFractionDigits: 2, maximumFractionDigits: 2 }
+    : { maximumFractionDigits: 0 }
+
+  return (
+    <form onSubmit={onSubmit} className="flex flex-col h-full">
+      <div className="flex items-center justify-between gap-4 px-6 py-3 border-b border-slate-200 dark:border-slate-800 bg-white dark:bg-slate-900">
+        <div className="flex items-center gap-3 min-w-0">
+          <Link to="/inventory/transfers" className="text-slate-400 hover:text-slate-700 dark:hover:text-slate-200 flex-shrink-0">
+            <ArrowLeft className="w-5 h-5" />
+          </Link>
+          <div className="min-w-0">
+            <h1 className="text-base font-semibold text-slate-900 dark:text-slate-100 truncate">
+              {isNew ? 'Новое перемещение' : existing.data?.number ?? 'Перемещение'}
+            </h1>
+            <p className="text-xs text-slate-500">
+              {isPosted
+                ? <span className="text-green-700 inline-flex items-center gap-1"><CheckCircle className="w-3 h-3" /> Проведён {existing.data?.postedAt ? new Date(existing.data.postedAt).toLocaleString('ru') : ''}</span>
+                : 'Черновик — товар не перемещён, пока не проведёшь'}
+            </p>
+          </div>
+        </div>
+        <div className="flex gap-3 flex-shrink-0 items-center">
+          {isDraft && !isNew && (
+            <Button type="button" variant="danger" size="sm" onClick={() => { if (confirm('Удалить черновик?')) remove.mutate() }}>
+              <Trash2 className="w-4 h-4" /> Удалить
+            </Button>
+          )}
+          {isDraft && (
+            <Button type="submit" disabled={!canSave || save.isPending}>
+              <Save className="w-4 h-4" /> {save.isPending ? 'Сохраняю…' : 'Сохранить'}
+            </Button>
+          )}
+        </div>
+      </div>
+
+      <div className="flex-1 overflow-auto">
+        <div className="max-w-5xl mx-auto p-3 sm:p-6 space-y-4">
+          {error && (
+            <div className="p-3 rounded-md bg-red-50 text-red-700 text-sm border border-red-200">{error}</div>
+          )}
+
+          <section className="bg-white dark:bg-slate-900 rounded-lg border border-slate-200 dark:border-slate-800 p-4">
+            <div className="grid grid-cols-1 md:grid-cols-3 gap-x-4 gap-y-3">
+              <Field label="Дата *">
+                <DateField required value={form.date || null} disabled={isPosted}
+                  onChange={(iso) => setForm({ ...form, date: iso ?? '' })} />
+              </Field>
+              <Field label="Со склада *">
+                <Select value={form.fromStoreId} disabled={isPosted}
+                  onChange={(e) => setForm({ ...form, fromStoreId: e.target.value })}>
+                  <option value="">—</option>
+                  {stores.data?.map((s) => <option key={s.id} value={s.id}>{s.name}</option>)}
+                </Select>
+              </Field>
+              <Field label="На склад *" error={sameStore ? 'Склады должны различаться' : undefined}>
+                <Select value={form.toStoreId} disabled={isPosted}
+                  onChange={(e) => setForm({ ...form, toStoreId: e.target.value })}>
+                  <option value="">—</option>
+                  {stores.data?.filter((s) => s.id !== form.fromStoreId).map((s) => (
+                    <option key={s.id} value={s.id}>{s.name}</option>
+                  ))}
+                </Select>
+              </Field>
+              <Field label="Комментарий" className="md:col-span-3">
+                <TextArea rows={2} value={form.notes} disabled={isPosted}
+                  onChange={(e) => setForm({ ...form, notes: e.target.value })} />
+              </Field>
+            </div>
+
+            <div className="mt-3 inline-flex items-center gap-2 text-sm text-slate-600 dark:text-slate-300 px-3 py-2 bg-slate-50 dark:bg-slate-800/50 rounded">
+              <span className="font-medium">{stores.data?.find((s) => s.id === form.fromStoreId)?.name ?? '—'}</span>
+              <ArrowRight className="w-4 h-4 text-slate-400" />
+              <span className="font-medium">{stores.data?.find((s) => s.id === form.toStoreId)?.name ?? '—'}</span>
+            </div>
+
+            {!isNew && (
+              <div className="mt-4 pt-4 border-t border-slate-100 dark:border-slate-800">
+                <Checkbox
+                  label="Проведено"
+                  checked={isPosted}
+                  disabled={post.isPending || unpost.isPending || form.lines.length === 0}
+                  onChange={(v) => {
+                    if (v) {
+                      if (confirm('Провести? Товар спишется с первого склада и встанет на второй.')) post.mutate()
+                    } else {
+                      if (confirm('Снять проведение? Остатки обоих складов вернутся к предыдущим значениям.')) unpost.mutate()
+                    }
+                  }}
+                />
+              </div>
+            )}
+          </section>
+
+          <section className="bg-white dark:bg-slate-900 rounded-lg border border-slate-200 dark:border-slate-800 p-4">
+            <div className="flex items-center justify-between mb-3">
+              <h2 className="font-medium text-slate-900 dark:text-slate-100">Позиции</h2>
+              {!isPosted && (
+                <Button type="button" variant="secondary" size="sm" onClick={() => setPickerOpen(true)}>
+                  <Plus className="w-3.5 h-3.5" /> Добавить из справочника
+                </Button>
+              )}
+            </div>
+
+            {form.lines.length === 0 ? (
+              <div className="text-sm text-slate-500 py-6 text-center">Нет позиций.</div>
+            ) : (
+              <div className="overflow-x-auto">
+                <table className="w-full text-sm">
+                  <thead className="text-left">
+                    <tr className="border-b border-slate-200 dark:border-slate-700">
+                      <th className="py-2 pr-3 font-medium text-xs uppercase text-slate-500">Товар</th>
+                      <th className="py-2 px-3 font-medium text-xs uppercase text-slate-500 w-[80px]">Ед.</th>
+                      <th className="py-2 px-3 font-medium text-xs uppercase text-slate-500 w-[110px] text-right">На отправителе</th>
+                      <th className="py-2 px-3 font-medium text-xs uppercase text-slate-500 w-[120px] text-right">Кол-во</th>
+                      <th className="py-2 px-3 font-medium text-xs uppercase text-slate-500 w-[140px] text-right">Цена ед.</th>
+                      <th className="py-2 px-3 font-medium text-xs uppercase text-slate-500 w-[140px] text-right">Сумма</th>
+                      <th className="w-8"></th>
+                    </tr>
+                  </thead>
+                  <tbody>
+                    {form.lines.map((l, i) => (
+                      <tr key={i} className="border-b border-slate-100 dark:border-slate-800">
+                        <td className="py-2 pr-3">
+                          <div className="font-medium text-slate-800 dark:text-slate-100">{l.productName || '(без названия)'}</div>
+                          {l.productArticle && <div className="text-xs text-slate-500">{l.productArticle}</div>}
+                        </td>
+                        <td className="py-2 px-3 text-slate-500">{l.unitSymbol ?? '—'}</td>
+                        <td className="py-2 px-3 text-right font-mono text-slate-500">
+                          {l.stockAtFrom != null ? l.stockAtFrom.toLocaleString('ru') : '—'}
+                        </td>
+                        <td className="py-2 px-3 text-right">
+                          <NumberInput value={l.quantity} disabled={isPosted}
+                            onChange={(v) => updateLine(i, { quantity: v ?? 0 })} />
+                        </td>
+                        <td className="py-2 px-3 text-right">
+                          <MoneyInput value={l.unitCost} disabled={isPosted}
+                            allowFractional={fractional}
+                            onChange={(v) => updateLine(i, { unitCost: v ?? 0 })} />
+                        </td>
+                        <td className="py-2 px-3 text-right font-mono">
+                          {lineTotal(l).toLocaleString('ru', moneyFmt)}
+                        </td>
+                        <td className="py-2 px-1">
+                          {!isPosted && (
+                            <button type="button" onClick={() => removeLine(i)}
+                              className="text-slate-400 hover:text-red-600">
+                              <Trash2 className="w-4 h-4" />
+                            </button>
+                          )}
+                        </td>
+                      </tr>
+                    ))}
+                    <tr className="font-medium">
+                      <td className="py-3 pr-3" colSpan={5}>Итого</td>
+                      <td className="py-3 px-3 text-right font-mono">
+                        {grandTotal.toLocaleString('ru', moneyFmt)}
+                      </td>
+                      <td />
+                    </tr>
+                  </tbody>
+                </table>
+              </div>
+            )}
+          </section>
+        </div>
+      </div>
+
+      <ProductPicker
+        open={pickerOpen}
+        onClose={() => setPickerOpen(false)}
+        onPick={(p) => { addLineFromProduct(p); setPickerOpen(false) }}
+      />
+    </form>
+  )
+}

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

@@ -0,0 +1,69 @@
+import { Link, useNavigate } from 'react-router-dom'
+import { Plus, ArrowRight } from 'lucide-react'
+import { ListPageShell } from '@/components/ListPageShell'
+import { DataTable } from '@/components/DataTable'
+import { Pagination } from '@/components/Pagination'
+import { SearchBar } from '@/components/SearchBar'
+import { Button } from '@/components/Button'
+import { useCatalogList } from '@/lib/useCatalog'
+import { useOrgSettings } from '@/lib/useOrgSettings'
+import { type TransferListRow, TransferStatus } from '@/lib/types'
+
+const URL = '/api/inventory/transfers'
+
+export function TransfersPage() {
+  const navigate = useNavigate()
+  const { data, isLoading, page, setPage, search, setSearch, sortKey, sortOrder, setSort } = useCatalogList<TransferListRow>(URL)
+  const org = useOrgSettings()
+  const fractional = org.data?.allowFractionalPrices ?? false
+  const moneyFmt = fractional
+    ? { minimumFractionDigits: 2, maximumFractionDigits: 2 }
+    : { maximumFractionDigits: 0 }
+
+  return (
+    <ListPageShell
+      title="Перемещения"
+      description={data ? `${data.total.toLocaleString('ru')} документов` : 'Перевод товара между складами.'}
+      actions={
+        <>
+          <SearchBar value={search} onChange={setSearch} placeholder="По номеру…" />
+          <Link to="/inventory/transfers/new">
+            <Button><Plus className="w-4 h-4" /> Новое перемещение</Button>
+          </Link>
+        </>
+      }
+      footer={data && data.total > 0 && (
+        <Pagination page={page} pageSize={data.pageSize} total={data.total} onPageChange={setPage} />
+      )}
+    >
+      <DataTable
+        rows={data?.items ?? []}
+        isLoading={isLoading}
+        rowKey={(r) => r.id}
+        sortKey={sortKey}
+        sortOrder={sortOrder}
+        onSortChange={setSort}
+        onRowClick={(r) => navigate(`/inventory/transfers/${r.id}`)}
+        columns={[
+          { header: '№', width: '180px', sortKey: 'number', cell: (r) => <span className="font-mono text-slate-600">{r.number}</span> },
+          { header: 'Дата', width: '120px', sortKey: 'date', cell: (r) => new Date(r.date).toLocaleDateString('ru') },
+          { header: 'Статус', width: '110px', sortKey: 'status', cell: (r) => (
+            r.status === TransferStatus.Posted
+              ? <span className="text-xs px-2 py-0.5 rounded bg-green-50 text-green-700">Проведён</span>
+              : <span className="text-xs px-2 py-0.5 rounded bg-slate-100 text-slate-600">Черновик</span>
+          )},
+          { header: 'Откуда → Куда', cell: (r) => (
+            <span className="inline-flex items-center gap-2 text-slate-700">
+              <span>{r.fromStoreName}</span>
+              <ArrowRight className="w-3.5 h-3.5 text-slate-400" />
+              <span>{r.toStoreName}</span>
+            </span>
+          )},
+          { header: 'Позиций', width: '90px', className: 'text-right', cell: (r) => r.lineCount },
+          { header: 'Сумма', width: '160px', className: 'text-right font-mono', sortKey: 'total', cell: (r) => `${r.total.toLocaleString('ru', moneyFmt)}` },
+        ]}
+        empty="Перемещений пока нет."
+      />
+    </ListPageShell>
+  )
+}

tests/food-market.IntegrationTests/TransferPostUnpostTests.cs

@@ -0,0 +1,161 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+using FluentAssertions;
+using foodmarket.IntegrationTests.Support;
+using Xunit;
+
+namespace foodmarket.IntegrationTests;
+
+[Collection(ApiCollection.Name)]
+public class TransferPostUnpostTests
+{
+    private readonly ApiFactory _factory;
+    public TransferPostUnpostTests(ApiFactory factory) => _factory = factory;
+
+    private static string RandomBarcode()
+        => string.Concat(Enumerable.Range(0, 13).Select(_ => Random.Shared.Next(0, 10)));
+
+    /// <summary>Создать второй склад через api (главный уже есть из bootstrap).</summary>
+    private async Task<string> CreateSecondStore(ApiActor api, string name)
+    {
+        var resp = await api.Http.PostAsJsonAsync("/api/catalog/stores", new
+        {
+            name, code = (string?)null, address = "Алматы 2",
+            phone = (string?)null, managerName = (string?)null,
+            isMain = false, isActive = true,
+        });
+        resp.EnsureSuccessStatusCode();
+        return (await resp.Content.ReadFromJsonAsync<JsonElement>()).GetProperty("id").GetString()!;
+    }
+
+    [Fact]
+    public async Task Post_creates_paired_movements_unpost_reverts_no_orphans()
+    {
+        var api = new ApiActor(_factory.CreateClient());
+        await api.SignupAndLoginAsync($"xfer-{Guid.NewGuid():N}");
+        var refs = await api.LoadRefsAsync();
+        var to = await CreateSecondStore(api, $"Склад-2-{Guid.NewGuid():N}");
+        var productId = await api.CreateProductAsync(refs, $"Prod-{Guid.NewGuid():N}", 200m, RandomBarcode());
+
+        // Оприходовать 10 шт на первый склад.
+        var enter = await api.Http.PostAsJsonAsync("/api/inventory/enters", new
+        {
+            date = DateTime.UtcNow, storeId = refs.StoreId, currencyId = refs.CurrencyId,
+            notes = "seed", lines = new[] { new { productId, quantity = 10m, unitCost = 50m } },
+        });
+        enter.EnsureSuccessStatusCode();
+        var enterId = (await enter.Content.ReadFromJsonAsync<JsonElement>()).GetProperty("id").GetString();
+        (await api.Http.PostAsJsonAsync($"/api/inventory/enters/{enterId}/post", new { })).EnsureSuccessStatusCode();
+        (await api.StockOfAsync(refs.StoreId, productId)).Should().Be(10m);
+
+        // Создать перемещение: 4 шт с первого склада на второй.
+        var xfer = await api.Http.PostAsJsonAsync("/api/inventory/transfers", new
+        {
+            date = DateTime.UtcNow,
+            fromStoreId = refs.StoreId, toStoreId = to,
+            notes = "test",
+            lines = new[] { new { productId, quantity = 4m, unitCost = 50m } },
+        });
+        xfer.EnsureSuccessStatusCode();
+        var xferId = (await xfer.Content.ReadFromJsonAsync<JsonElement>()).GetProperty("id").GetString();
+
+        // Post → 6 на источнике, 4 на получателе.
+        using var post = await api.Http.PostAsJsonAsync($"/api/inventory/transfers/{xferId}/post", new { });
+        post.IsSuccessStatusCode.Should().BeTrue($"post вернул {(int)post.StatusCode}: {await post.Content.ReadAsStringAsync()}");
+        (await api.StockOfAsync(refs.StoreId, productId)).Should().Be(6m);
+        (await api.StockOfAsync(to, productId)).Should().Be(4m);
+
+        // Проверяем что движений ровно 2 (TransferOut + TransferIn) — никаких orphan.
+        var movs = await api.ListAsync($"/api/inventory/movements?productId={productId}&pageSize=100");
+        var byThisDoc = movs.Where(m =>
+            m.GetProperty("documentId").ValueKind == JsonValueKind.String &&
+            m.GetProperty("documentId").GetString() == xferId).ToList();
+        byThisDoc.Should().HaveCount(2, "перемещение порождает строго пару движений Out+In");
+
+        // Unpost → 10 и 0. Атомарность: ИЛИ оба отменены, ИЛИ ни одного.
+        using var unpost = await api.Http.PostAsJsonAsync($"/api/inventory/transfers/{xferId}/unpost", new { });
+        unpost.IsSuccessStatusCode.Should().BeTrue();
+        (await api.StockOfAsync(refs.StoreId, productId)).Should().Be(10m);
+        (await api.StockOfAsync(to, productId)).Should().Be(0m);
+
+        // По документу теперь 4 движения (2 forward + 2 reversal), но stock-инвариант держится.
+        movs = await api.ListAsync($"/api/inventory/movements?productId={productId}&pageSize=100");
+        var byThisDocAfter = movs.Where(m =>
+            m.GetProperty("documentId").ValueKind == JsonValueKind.String &&
+            m.GetProperty("documentId").GetString() == xferId).ToList();
+        byThisDocAfter.Should().HaveCount(4);
+    }
+
+    [Fact]
+    public async Task Cannot_create_transfer_to_same_store()
+    {
+        var api = new ApiActor(_factory.CreateClient());
+        await api.SignupAndLoginAsync($"xfer-same-{Guid.NewGuid():N}");
+        var refs = await api.LoadRefsAsync();
+        var productId = await api.CreateProductAsync(refs, $"Prod-{Guid.NewGuid():N}", 100m, RandomBarcode());
+
+        using var resp = await api.Http.PostAsJsonAsync("/api/inventory/transfers", new
+        {
+            date = DateTime.UtcNow,
+            fromStoreId = refs.StoreId, toStoreId = refs.StoreId,
+            notes = "same",
+            lines = new[] { new { productId, quantity = 1m, unitCost = 10m } },
+        });
+        ((int)resp.StatusCode).Should().Be(400);
+    }
+
+    [Fact]
+    public async Task Post_blocked_when_from_store_short()
+    {
+        var api = new ApiActor(_factory.CreateClient());
+        await api.SignupAndLoginAsync($"xfer-short-{Guid.NewGuid():N}");
+        var refs = await api.LoadRefsAsync();
+        var to = await CreateSecondStore(api, $"Склад-S-{Guid.NewGuid():N}");
+        var productId = await api.CreateProductAsync(refs, $"Prod-{Guid.NewGuid():N}", 100m, RandomBarcode());
+
+        // На первом 0 шт; пытаемся перевести 5 — должно отбиться.
+        var xfer = await api.Http.PostAsJsonAsync("/api/inventory/transfers", new
+        {
+            date = DateTime.UtcNow,
+            fromStoreId = refs.StoreId, toStoreId = to,
+            notes = "short",
+            lines = new[] { new { productId, quantity = 5m, unitCost = 10m } },
+        });
+        xfer.EnsureSuccessStatusCode();
+        var xferId = (await xfer.Content.ReadFromJsonAsync<JsonElement>()).GetProperty("id").GetString();
+
+        using var post = await api.Http.PostAsJsonAsync($"/api/inventory/transfers/{xferId}/post", new { });
+        ((int)post.StatusCode).Should().Be(409);
+        // Никаких движений не должно появиться.
+        (await api.StockOfAsync(refs.StoreId, productId)).Should().Be(0m);
+        (await api.StockOfAsync(to, productId)).Should().Be(0m);
+    }
+
+    [Fact]
+    public async Task Tenant_isolation_transfer()
+    {
+        var a = new ApiActor(_factory.CreateClient());
+        var b = new ApiActor(_factory.CreateClient());
+        await a.SignupAndLoginAsync($"xfer-iso-a-{Guid.NewGuid():N}");
+        await b.SignupAndLoginAsync($"xfer-iso-b-{Guid.NewGuid():N}");
+        var refsA = await a.LoadRefsAsync();
+        var toA = await CreateSecondStore(a, $"Склад-A2-{Guid.NewGuid():N}");
+        var productA = await a.CreateProductAsync(refsA, $"Prod-{Guid.NewGuid():N}", 100m, RandomBarcode());
+
+        var resp = await a.Http.PostAsJsonAsync("/api/inventory/transfers", new
+        {
+            date = DateTime.UtcNow,
+            fromStoreId = refsA.StoreId, toStoreId = toA,
+            notes = "iso",
+            lines = new[] { new { productId = productA, quantity = 1m, unitCost = 10m } },
+        });
+        resp.EnsureSuccessStatusCode();
+        var xferId = (await resp.Content.ReadFromJsonAsync<JsonElement>()).GetProperty("id").GetString();
+
+        var bList = await b.ListAsync("/api/inventory/transfers?pageSize=200");
+        bList.Should().NotContain(x => x.GetProperty("id").GetString() == xferId);
+
+        using var direct = await b.Http.GetAsync($"/api/inventory/transfers/{xferId}");
+        direct.StatusCode.Should().Be(System.Net.HttpStatusCode.NotFound);
+    }
+}