(BE-58,,59): extend db schema & build stock transfer api

- Extend DB schema for stock transfers
- Build stock transfer API (create,)

internal/entities/stock-transfer.go

@@ -0,0 +1,22 @@
+package entities
+
+import "time"
+
+// HEADER
+type StockTransfer struct {
+	Id              uint64 `gorm:"primaryKey;autoIncrement"`
+	MovementNumber  string `gorm:"uniqueIndex;not null"`
+	FromWarehouseId uint64
+	ToWarehouseId   uint64
+	TransferDate    time.Time
+	Reason          string
+	CreatedBy       uint64
+	CreatedAt       time.Time
+	UpdatedAt       time.Time
+	DeletedAt       *time.Time `gorm:"index"`
+	// Relations
+	FromWarehouse *Warehouse              `gorm:"foreignKey:FromWarehouseId"`
+	ToWarehouse   *Warehouse              `gorm:"foreignKey:ToWarehouseId"`
+	Details       []StockTransferDetail   `gorm:"foreignKey:StockTransferId"`
+	Deliveries    []StockTransferDelivery `gorm:"foreignKey:StockTransferId"`
+}