feat: feat(be): add health check endpoint

src/main/java/com/example/coreTest/GeneratedCode.java

@@ -0,0 +1,56 @@
+package com.example.coreTest.controller;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+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 ResponseEntity<Object> health() {
+        return new ResponseEntity<>(new HealthStatus("UP"), HttpStatus.OK);
+    }
+
+    private static class HealthStatus {
+        private final String status;
+
+        public HealthStatus(String status) {
+            this.status = status;
+        }
+
+        public String getStatus() {
+            return status;
+        }
+    }
+}
+
+package com.example.coreTest;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.annotation.Autowired;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
+
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@WebMvcTest(HealthController.class)
+class HealthControllerTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void health_ShouldReturnStatusUp() throws Exception {
+        mockMvc.perform(MockMvcRequestBuilders.get("/api/health")
+                .accept(MediaType.APPLICATION_JSON))
+                .andExpect(status().isOk())
+                .andExpect(MockMvcResultMatchers.jsonPath("$.status").value("UP"));
+    }
+}