feat: add server authoritative travel flow

apps/api/test/app.e2e-spec.ts

@@ -6,6 +6,7 @@ import { AppModule } from './../src/app.module';
 import { CharactersModule } from './../src/characters/characters.module';
 import { DatabaseModule } from './../src/database/database.module';
 import { configureApplication } from './../src/app.config';
+import { TravelModule } from './../src/travel/travel.module';
 
 @Module({})
 class TestDatabaseModule {}
@@ -13,6 +14,9 @@ class TestDatabaseModule {}
 @Module({})
 class TestCharactersModule {}
 
+@Module({})
+class TestTravelModule {}
+
 describe('API (e2e)', () => {
   let app: INestApplication<App>;
 
@@ -24,6 +28,8 @@ describe('API (e2e)', () => {
       .useModule(TestDatabaseModule)
       .overrideModule(CharactersModule)
       .useModule(TestCharactersModule)
+      .overrideModule(TravelModule)
+      .useModule(TestTravelModule)
       .compile();
 
     app = moduleFixture.createNestApplication();
@@ -43,6 +49,6 @@ describe('API (e2e)', () => {
   });
 
   afterEach(async () => {
-    await app.close();
+    await app?.close();
   });
 });