fixes

backend/internal/database/mysql.go

@@ -1,6 +1,7 @@
 package database
 
 import (
+	"errors"
 	"fmt"
 	"log"
 	"strings"
@@ -12,6 +13,7 @@ import (
 
 	"gorm.io/driver/mysql"
 	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
 )
 
 func Connect(cfg config.Config) *gorm.DB {
@@ -74,7 +76,7 @@ func ensureDefaultAdmin(db *gorm.DB, cfg config.Config) {
 		return
 	}
 
-	if err != gorm.ErrRecordNotFound {
+	if !errors.Is(err, gorm.ErrRecordNotFound) {
 		log.Fatalf("failed to check default admin user: %v", err)
 	}
 
@@ -88,7 +90,20 @@ func ensureDefaultAdmin(db *gorm.DB, cfg config.Config) {
 		PasswordHash: string(passwordHash),
 		IsAdmin:      true,
 	}
-	if err := db.Create(&user).Error; err != nil {
+	if err := db.Clauses(clause.OnConflict{
+		Columns:   []clause.Column{{Name: "email"}},
+		DoNothing: true,
+	}).Create(&user).Error; err != nil {
 		log.Fatalf("failed to create default admin user: %v", err)
 	}
+
+	if err := db.Where("email = ?", email).First(&user).Error; err != nil {
+		log.Fatalf("failed to load default admin user after bootstrap: %v", err)
+	}
+
+	if !user.IsAdmin {
+		if err := db.Model(&user).Update("is_admin", true).Error; err != nil {
+			log.Fatalf("failed to ensure default admin privileges: %v", err)
+		}
+	}
 }