외부 IdP 연동 관리 API 기능 구현

backend/internal/bootstrap/bootstrap.go

@@ -36,6 +36,7 @@ func migrateSchemas(db *gorm.DB) error {
 		&domain.User{},
 		&domain.Tenant{},
 		&domain.ApiKey{},
+		&domain.IdentityProviderConfig{},
 		// &domain.RelyingParty{}, // TODO: Uncomment when model is ready
 		// &domain.UserConsent{},  // TODO: Uncomment when model is ready
 	)