테넌트 등록 방식을 결정

backend/internal/bootstrap/bootstrap.go

@@ -17,6 +17,11 @@ func Run(db *gorm.DB) error {
 		return fmt.Errorf("migration failed: %w", err)
 	}
 
+	// 2. Seed Tenants
+	if err := SeedTenants(db); err != nil {
+		return fmt.Errorf("tenant seeding failed: %w", err)
+	}
+
 	slog.Info("[Bootstrap] User seed skipped (Kratos is SoT)")
 	slog.Info("[Bootstrap] Bootstrap completed successfully.")
 	return nil
@@ -27,6 +32,8 @@ func migrateSchemas(db *gorm.DB) error {
 	// Add all domain models here
 	return db.AutoMigrate(
 		&domain.Tenant{},
+		&domain.TenantDomain{},
+		&domain.User{},
 		&domain.ApiKey{},
 		&domain.IdentityProviderConfig{},
 		// &domain.RelyingParty{}, // TODO: Uncomment when model is ready