backend swagger/redoc 추가

backend/internal/domain/tenant.go

@@ -0,0 +1,28 @@
+package domain
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+// Tenant represents a tenant model stored in PostgreSQL.
+type Tenant struct {
+	ID          string         `gorm:"primaryKey;type:uuid;default:gen_random_uuid()" json:"id"`
+	Name        string         `gorm:"not null" json:"name"`
+	Slug        string         `gorm:"uniqueIndex;not null" json:"slug"`
+	Description string         `json:"description"`
+	Status      string         `gorm:"default:'active'" json:"status"`
+	CreatedAt   time.Time      `json:"createdAt"`
+	UpdatedAt   time.Time      `json:"updatedAt"`
+	DeletedAt   gorm.DeletedAt `gorm:"index" json:"-"`
+}
+
+// BeforeCreate hook to generate UUID if not present.
+func (t *Tenant) BeforeCreate(tx *gorm.DB) (err error) {
+	if t.ID == "" {
+		t.ID = uuid.NewString()
+	}
+	return
+}