feat: users & authentication implementation

adapters/secondary/gateways/models/user.go

@@ -0,0 +1,16 @@
+package models
+
+import (
+	"gorm.io/gorm"
+	"time"
+)
+
+type User struct {
+	gorm.Model
+	ID        uint32    `gorm:"primaryKey;autoIncrement"`
+	Username  string    `gorm:"unique;not null"`
+	Password  string    `gorm:"not null"`
+	Email     string    `gorm:"unique;not null"`
+	CreatedAt time.Time `gorm:"autoCreateTime"`
+	UpdatedAt time.Time `gorm:"autoUpdateTime"`
+}