refactor the main structure

src/main.rs

@@ -1,9 +1,9 @@
 mod deploy;
-mod server;
-mod conf;
+mod api;
+mod database;
 mod controller;
 
 #[actix_web::main]
 async fn main() {
-    server::start().await;
+    api::routes::start().await;
 }