feat: creat main products query

app/model/currency.go

@@ -0,0 +1,25 @@
+package model
+
+import "time"
+
+type Currency struct {
+	ID             int      `json:"id"`
+	PsIDCurrency   uint     `json:"ps_id_currency"`
+	IsDefault      bool     `json:"is_default"`
+	IsActive       bool     `json:"is_active"`
+	ConversionRate *float64 `json:"conversion_rate,omitempty"`
+}
+
+func (Currency) TableName() string {
+	return "b2b_currencies"
+}
+
+type CurrencyRate struct {
+	B2bIdCurrency  uint      `json:"b2b_id_currency"`
+	CreatedAt      time.Time `json:"created_at"`
+	ConversionRate *float64  `json:"conversion_rate,omitempty"`
+}
+
+func (CurrencyRate) TableName() string {
+	return "b2b_currency_rates"
+}