Add all layers.

sportshub-exposition/src/main/java/org/sportshub/exposition/user/UserController.java

@@ -0,0 +1,23 @@
+package org.sportshub.exposition.user;
+
+import java.util.UUID;
+
+import org.sportshub.application.user.UserUseCases;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/users")
+public class UserController {
+    private final UserUseCases userUseCases;
+
+    public UserController(final UserUseCases userUseCases) {
+        this.userUseCases = userUseCases;
+    }
+
+    @PostMapping
+    public String login() {
+        return "";
+    }
+}