multi IDP 모델 적용 scaffolding

backend/cmd/server/main.go

@@ -1,10 +1,12 @@
 package main
 
 import (
+	"baron-sso-backend/internal/domain"
 	"baron-sso-backend/internal/handler"
 	"baron-sso-backend/internal/logger"
 	"baron-sso-backend/internal/repository"
 	"baron-sso-backend/internal/service"
+	"baron-sso-backend/internal/validator"
 	"fmt"
 	"log/slog"
 	"os"
@@ -59,6 +61,27 @@ func main() {
 		"redis_addr", getEnv("REDIS_ADDR", "redis:6379"),
 	)
 
+	// --- Fail-Fast Schema Validation ---
+	// Initialize the IDP Provider (Descope)
+	descopeProjectID := getEnv("DESCOPE_PROJECT_ID", "")
+	descopeManagementKey := getEnv("DESCOPE_MANAGEMENT_KEY", "")
+
+	// We create a provider instance to check schema compatibility.
+	// This ensures that our BrokerUser model requirements (e.g. custom attributes)
+	// are supported by the configured IDP.
+	idpProvider := service.NewDescopeProvider(descopeProjectID, descopeManagementKey)
+
+	if err := validator.ValidateIDPCompatibility(domain.BrokerUser{}, idpProvider); err != nil {
+		slog.Error("❌ [CRITICAL] Broker Schema Mismatch",
+			"idp", idpProvider.Name(),
+			"error", err,
+		)
+		fmt.Printf("\n!!! CRITICAL ERROR: IDP Schema Mismatch !!!\n%v\n\n", err)
+		os.Exit(1) // Break the build/deployment
+	}
+	slog.Info("✅ IDP Schema Validation Passed", "idp", idpProvider.Name())
+	// -----------------------------------
+
 	// 2. Initialize DB Connections
 	chHost := getEnv("CLICKHOUSE_HOST", "localhost")
 	chPort, _ := strconv.Atoi(getEnv("CLICKHOUSE_PORT_NATIVE", "9000"))