Implement enhanced login functionality with JWT, role-based permissions, and frontend integration

Added JWT-based login dialog with form validation and secure token handling on the frontend. Updated backend with role-based access control, privilege management, and refined security configurations. Extended database schema for user privileges and permissions.

backend/src/main/java/com/alttd/altitudeweb/AltitudeWebApplication.java

@@ -10,8 +10,8 @@ import org.springframework.context.annotation.EnableAspectJAutoProxy;
 public class AltitudeWebApplication {
 
     public static void main(String[] args) {
-        SpringApplication.run(AltitudeWebApplication.class, args);
         Connection.initDatabases();
+        SpringApplication.run(AltitudeWebApplication.class, args);
     }
 
 }