feat(auth): say when an account signs in with its password

A code by mail no longer signs into an account with a password and an
authenticator; email sign-in now says so rather than failing unnamed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

packages/halkyon_app/lib/l10n/halkyon_app_de.arb

@@ -70,6 +70,7 @@
   "emailSignInCodeExpired": "Dieser Code gilt nicht mehr. Fordere einen neuen an.",
   "emailSignInOtherAddressLinked": "Du meldest dich schon mit einer anderen Adresse an.",
   "emailSignInMailFailed": "Die Instanz konnte die Mail nicht senden. Versuche es später noch einmal.",
+  "emailSignInUsePassword": "Dieses Konto meldet sich mit seinem Passwort und einer Authenticator-App an.",
   "emailSignInFailed": "Die Instanz war nicht erreichbar. Versuche es noch einmal.",
   "syncTitle": "Synchronisierung",
   "syncNow": "Jetzt synchronisieren",

packages/halkyon_app/lib/l10n/halkyon_app_en.arb

@@ -191,6 +191,7 @@
   "emailSignInCodeExpired": "This code is no longer valid. Ask for a new one.",
   "emailSignInOtherAddressLinked": "You already sign in with another address.",
   "emailSignInMailFailed": "The instance couldn't send the mail. Try again later.",
+  "emailSignInUsePassword": "This account signs in with its password and an authenticator app.",
   "emailSignInFailed": "Couldn't reach the instance. Try again.",
   "syncTitle": "Sync",
   "syncNow": "Sync now",

packages/halkyon_app/lib/l10n/halkyon_app_localizations.dart

@@ -523,6 +523,12 @@ abstract class HalkyonAppLocalizations {
   /// **'The instance couldn\'t send the mail. Try again later.'**
   String get emailSignInMailFailed;
 
+  /// No description provided for @emailSignInUsePassword.
+  ///
+  /// In en, this message translates to:
+  /// **'This account signs in with its password and an authenticator app.'**
+  String get emailSignInUsePassword;
+
   /// No description provided for @emailSignInFailed.
   ///
   /// In en, this message translates to:

packages/halkyon_app/lib/l10n/halkyon_app_localizations_de.dart

@@ -264,6 +264,10 @@ class HalkyonAppLocalizationsDe extends HalkyonAppLocalizations {
   String get emailSignInMailFailed =>
       'Die Instanz konnte die Mail nicht senden. Versuche es später noch einmal.';
 
+  @override
+  String get emailSignInUsePassword =>
+      'Dieses Konto meldet sich mit seinem Passwort und einer Authenticator-App an.';
+
   @override
   String get emailSignInFailed =>
       'Die Instanz war nicht erreichbar. Versuche es noch einmal.';

packages/halkyon_app/lib/l10n/halkyon_app_localizations_en.dart

@@ -262,6 +262,10 @@ class HalkyonAppLocalizationsEn extends HalkyonAppLocalizations {
   String get emailSignInMailFailed =>
       'The instance couldn\'t send the mail. Try again later.';
 
+  @override
+  String get emailSignInUsePassword =>
+      'This account signs in with its password and an authenticator app.';
+
   @override
   String get emailSignInFailed => 'Couldn\'t reach the instance. Try again.';
 

packages/halkyon_app/lib/src/auth/data/serverpod_auth_gateway.dart

@@ -311,6 +311,7 @@ class ServerpodAuthGateway(
         EmailSignInRefusal.otherAddressLinked =>
           EmailSignInProblem.otherAddressLinked,
         EmailSignInRefusal.mailFailed => EmailSignInProblem.mailFailed,
+        EmailSignInRefusal.usePassword => EmailSignInProblem.usePassword,
       });
     }
   }

packages/halkyon_app/lib/src/auth/model/email_sign_in.dart

@@ -27,6 +27,10 @@ enum EmailSignInProblem() {
   /// The instance couldn't send the mail.
   mailFailed,
 
+  /// The account signs in with its password and an authenticator: a code by
+  /// mail no longer signs into it.
+  usePassword,
+
   /// The instance couldn't be reached, or answered otherwise.
   failed,
 }

packages/halkyon_app/lib/src/auth/widget/email_sign_in_sheet.dart

@@ -51,6 +51,7 @@ String emailSignInProblemText(
   EmailSignInProblem.codeExpired => l10n.emailSignInCodeExpired,
   EmailSignInProblem.otherAddressLinked => l10n.emailSignInOtherAddressLinked,
   EmailSignInProblem.mailFailed => l10n.emailSignInMailFailed,
+  EmailSignInProblem.usePassword => l10n.emailSignInUsePassword,
   EmailSignInProblem.failed => l10n.emailSignInFailed,
 };