fix: add logout protocol

gateway-service/src/main/java/com/drinkool/controller/BaseController.java

@@ -0,0 +1,26 @@
+package com.drinkool.controller;
+
+import com.drinkool.InternalValue;
+import com.drinkool.Url;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.core.NewCookie;
+import org.jboss.resteasy.reactive.RestResponse;
+
+public abstract class BaseController {
+
+	@POST
+	@Path(Url.Logout)
+	public RestResponse<Void> logout() {
+		NewCookie cookie = new NewCookie.Builder(InternalValue.cookieName)
+			.secure(true)
+			.maxAge(0)
+			.path("/")
+			.httpOnly(true)
+			.build();
+
+		return RestResponse.ResponseBuilder.<Void>noContent()
+			.cookie(cookie)
+			.build();
+	}
+}

gateway-service/src/main/java/com/drinkool/controller/CustomerController.java

@@ -11,7 +11,7 @@ import java.util.*;
 import org.eclipse.microprofile.rest.client.inject.RestClient;
 
 @Path("/api/" + Role.Customer)
-public class CustomerController {
+public class CustomerController extends BaseController {
 
 	@Inject
 	@RestClient

gateway-service/src/test/java/com/drinkool/controller/BaseControllerTest.java

@@ -0,0 +1,24 @@
+package com.drinkool.controller;
+
+import static io.restassured.RestAssured.*;
+import static org.hamcrest.CoreMatchers.*;
+
+import com.drinkool.*;
+import io.quarkus.test.junit.QuarkusTest;
+import org.junit.jupiter.api.Test;
+
+@QuarkusTest
+public class BaseControllerTest {
+
+	@Test
+	public void testLogoutShouldClearCookie() {
+		given()
+			.when()
+			.post("/api/" + Role.Customer + Url.Logout) 
+			.then()
+			.statusCode(204) 
+			.header("Set-Cookie", containsString(InternalValue.cookieName))
+			.header("Set-Cookie", containsString("Max-Age=0"))
+			.header("Set-Cookie", containsString("HttpOnly"));
+	}
+}

lib/src/main/java/com/drinkool/Url.java

@@ -8,4 +8,5 @@ public class Url {
 	public static final String QuickLogin = "/quick_login";
 	public static final String SmsOtp = "/sms_otp";
 	public static final String Me = "/me";
+	public static final String Logout = "/logout";
 }