fix: reimplement transfer to laying logics separating effective financial date and physical transfer date

internal/entities/laying_transfer.go

@@ -12,6 +12,7 @@ type LayingTransfer struct {
 	FromProjectFlockId uint           `gorm:"not null"`
 	ToProjectFlockId   uint           `gorm:"not null"`
 	TransferDate       time.Time      `gorm:"type:date;not null"`
+	EconomicCutoffDate *time.Time     `gorm:"type:date"`
 	EffectiveMoveDate  *time.Time     `gorm:"type:date"`
 	ExecutedAt         *time.Time     `gorm:"type:timestamptz"`
 	ExecutedBy         *uint          `gorm:"index"`