Initialize HemHub project foundation

backend/src/main/java/se/rubble/hemhub/HealthController.java

@@ -0,0 +1,18 @@
+package se.rubble.hemhub;
+
+import java.util.Map;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api")
+public class HealthController {
+
+    @GetMapping("/health")
+    public Map<String, String> health() {
+        return Map.of("status", "UP");
+    }
+}
+

backend/src/main/java/se/rubble/hemhub/HemHubApplication.java

@@ -0,0 +1,13 @@
+package se.rubble.hemhub;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class HemHubApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(HemHubApplication.class, args);
+    }
+}
+