(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_detail.go

@@ -0,0 +1,22 @@
+package entities
+
+import "time"
+
+
+// DETAIL PRODUK
+type StockTransferDetail struct {
+    Id              uint64                      `gorm:"primaryKey;autoIncrement"`
+    StockTransferId uint64
+    ProductId       uint64
+    Quantity        float64
+    BeforeQuantity  float64
+    AfterQuantity   float64
+    Note            string
+    CreatedAt       time.Time
+    UpdatedAt       time.Time
+    DeletedAt       *time.Time                  `gorm:"index"`
+    // Relations
+    StockTransfer   *StockTransfer              `gorm:"foreignKey:StockTransferId"`
+    Product         *Product                    `gorm:"foreignKey:ProductId"`
+    DeliveryItems   []StockTransferDeliveryItem `gorm:"foreignKey:StockTransferDetailId"`
+}