feat: Secret management

server/cmd/main.go

@@ -23,6 +23,10 @@ func main() {
 	}
 	log.Println("connected to MongoDB")
 
+	if err := services.EnsureSecretIndexes(); err != nil {
+		log.Printf("warning: failed to ensure secret indexes: %v", err)
+	}
+
 	redisAddr := getEnv("REDIS_ADDR", "localhost:6379")
 	if err := auth.InitRedis(redisAddr); err != nil {
 		log.Fatalf("failed to connect to Redis: %v", err)