fix: update Dockerfile to run tests during build and adjust TodoController request mapping

backend/src/main/java/com/todo/backend/controller/TodoController.java

@@ -11,8 +11,7 @@ import java.util.List;
 import java.util.Optional;
 
 @RestController
-@RequestMapping("/api/todos")
-@CrossOrigin(origins = "*")
+@RequestMapping("/todos")
 public class TodoController {
 
     private final TodoService todoService;

backend/src/main/resources/application.properties

@@ -1,3 +1,4 @@
+server.servlet.context-path=/api
 spring.application.name=backend
 spring.datasource.url=jdbc:postgresql://localhost:5432/tododb
 spring.datasource.username=postgres