feat(account): send display name in account state to Core

The account state push carries displayName. It is published when the
name changes. Contract test updated.

src/test/java/auth_service/modules/account/repo/AccountRepositoryTest.java

@@ -52,12 +52,12 @@ class AccountRepositoryTest extends AbstractPersistenceTest {
     }
 
     @Test
-    void findStates_CarryTheSteamIdAndTheBlock() {
-        jdbc.update("update users set enabled = false, steam_id = 76561198000000001 where id = ?", alice);
+    void findStates_CarryTheSteamIdTheDisplayNameAndTheBlock() {
+        jdbc.update("update users set enabled = false, steam_id = 76561198000000001, display_name = 'Alice' where id = ?", alice);
 
-        assertThat(repository.findState(alice)).contains(new CoreAccountState(alice, 76561198000000001L, true));
-        assertThat(repository.findAllStates()).containsExactly(new CoreAccountState(alice, 76561198000000001L, true),
-                new CoreAccountState(bob, null, false));
+        assertThat(repository.findState(alice)).contains(new CoreAccountState(alice, 76561198000000001L, "Alice", true));
+        assertThat(repository.findAllStates()).containsExactly(new CoreAccountState(alice, 76561198000000001L, "Alice", true),
+                new CoreAccountState(bob, null, null, false));
         assertThat(repository.findState(-1L)).isEmpty();
     }
 

src/test/java/auth_service/modules/account/service/AccountCleanupServiceTest.java

@@ -31,7 +31,7 @@ import static org.mockito.Mockito.when;
 
 class AccountCleanupServiceTest extends AbstractUnitTest {
 
-    private static final List<CoreAccountState> STATES = List.of(new CoreAccountState(1L, 76561198000000001L, true));
+    private static final List<CoreAccountState> STATES = List.of(new CoreAccountState(1L, 76561198000000001L, "lobo", true));
 
     private static final Duration RETENTION = Duration.ofDays(30);
 

src/test/java/auth_service/modules/account/service/CoreAccountServiceTest.java

@@ -71,8 +71,8 @@ class CoreAccountServiceTest extends AbstractUnitTest {
         expect("applyStates");
         expect("replaceStates");
 
-        service.applyStates(List.of(new CoreAccountState(42L, 76561198000000001L, true)));
-        service.replaceStates(List.of(new CoreAccountState(42L, null, false)));
+        service.applyStates(List.of(new CoreAccountState(42L, 76561198000000001L, "lobo", true)));
+        service.replaceStates(List.of(new CoreAccountState(42L, null, "lobo", false)));
 
         core.verify();
     }

src/test/java/auth_service/modules/account/service/CoreAccountStatePublisherTest.java

@@ -22,7 +22,7 @@ import static org.mockito.Mockito.when;
 
 class CoreAccountStatePublisherTest extends AbstractUnitTest {
 
-    private static final CoreAccountState STATE = new CoreAccountState(7L, 76561198000000001L, true);
+    private static final CoreAccountState STATE = new CoreAccountState(7L, 76561198000000001L, "lobo", true);
 
     @Mock
     private AccountRepository accountRepository;

src/test/java/auth_service/modules/user/service/UserServiceTest.java

@@ -93,6 +93,7 @@ class UserServiceTest extends AbstractUnitTest {
         verify(userRepository, never()).clearSteamId(anyLong());
         verify(userRepository, never()).setVerifiedSteamId(anyLong(), anyLong());
         verifyNoInteractions(tokenGenerator);
+        verifyNoInteractions(accountStatePublisher);
     }
 
     @Test
@@ -120,6 +121,18 @@ class UserServiceTest extends AbstractUnitTest {
         User changed = appliedChanges(1).getFirst();
         assertEquals("Lobo", changed.getDisplayName());
         assertEquals("en", changed.getSettings().getLanguage());
+        verify(accountStatePublisher).publish(1L);
+    }
+
+    @Test
+    void updateUserSettings_UnchangedDisplayName_PublishesNothing() {
+        var userSettings = UserSettings.builder().language("en").build();
+        when(userRepository.findById(1L)).thenReturn(Optional.of(User.builder().id(1L).displayName("Lobo").build()));
+
+        userService.updateUserSettings(1L, "Lobo", userSettings);
+
+        appliedChanges(1);
+        verifyNoInteractions(accountStatePublisher);
     }
 
     private static final long STEAM_ID = 76561198000000001L;
@@ -186,6 +199,7 @@ class UserServiceTest extends AbstractUnitTest {
 
         assertEquals(appearance, appliedChanges(1).getFirst().getSettings().getAppearance());
         verifyNoInteractions(tokenGenerator);
+        verifyNoInteractions(accountStatePublisher);
     }
 
     @Test

src/test/resources/contract/auth-core-contract.json

@@ -37,12 +37,12 @@
     "applyStates": {
       "method": "POST",
       "path": "/internal/accounts/states",
-      "request": {"accounts": [{"userId": 42, "steamId": 76561198000000001, "blocked": true}]}
+      "request": {"accounts": [{"userId": 42, "steamId": 76561198000000001, "displayName": "lobo", "blocked": true}]}
     },
     "replaceStates": {
       "method": "PUT",
       "path": "/internal/accounts/states",
-      "request": {"accounts": [{"userId": 42, "steamId": null, "blocked": false}]}
+      "request": {"accounts": [{"userId": 42, "steamId": null, "displayName": "lobo", "blocked": false}]}
     },
     "purge": {
       "method": "POST",