i18n(alarm): localize all native notification, channel and chooser texts

Centralize every native-side user-facing string in a single
AlarmNotificationStrings store written by Flutter via a new
setNotificationStrings MethodChannel whenever the app locale changes,
and read at notification/channel build time (with English fallbacks)
even when the engine is dead. This replaces the hardcoded Spanish text
in the ringing notification ("Alarma PluriWave", "Posponer", "Detener"),
the pre-notice notification ("Posponer", "Omitir esta vez"), both
notification channels (names + descriptions) and the file-action
choosers ("Abrir carpeta", "Abrir grabación").

The per-alarm preNoticeTemplate/snoozeCountdown template+label args are
dropped from scheduleAlarm and the persisted spec and folded into the
shared store, so a locale change now also relocalizes already-scheduled
alarms. Channels are re-created on each use so their name/description
refresh after a language switch.

Adds alarmRingingNotificationTitle, alarmFire/PreNoticeChannelName,
alarmFire/PreNoticeChannelDescription and openFolder/openRecording
chooser keys across all 13 locales (reusing snoozeAction, stopAlarmAction,
skipNextAction, snoozeAgainAction). Rewrites the template test around
setNotificationStrings. Kotlin is static-reviewed only; no Android build
environment available here.

lib/l10n/gen/app_localizations.dart

@@ -2324,6 +2324,48 @@ abstract class AppLocalizations {
   /// **'Posponer otra vez'**
   String get snoozeAgainAction;
 
+  /// No description provided for @alarmRingingNotificationTitle.
+  ///
+  /// In es, this message translates to:
+  /// **'Alarma PluriWave'**
+  String get alarmRingingNotificationTitle;
+
+  /// No description provided for @alarmFireChannelName.
+  ///
+  /// In es, this message translates to:
+  /// **'Alarmas sonando'**
+  String get alarmFireChannelName;
+
+  /// No description provided for @alarmFireChannelDescription.
+  ///
+  /// In es, this message translates to:
+  /// **'Sonido y pantalla urgente cuando una alarma musical debe sonar'**
+  String get alarmFireChannelDescription;
+
+  /// No description provided for @alarmPreNoticeChannelName.
+  ///
+  /// In es, this message translates to:
+  /// **'Preavisos de alarmas'**
+  String get alarmPreNoticeChannelName;
+
+  /// No description provided for @alarmPreNoticeChannelDescription.
+  ///
+  /// In es, this message translates to:
+  /// **'Notificaciones silenciosas antes de la alarma'**
+  String get alarmPreNoticeChannelDescription;
+
+  /// No description provided for @openFolderChooserTitle.
+  ///
+  /// In es, this message translates to:
+  /// **'Abrir carpeta'**
+  String get openFolderChooserTitle;
+
+  /// No description provided for @openRecordingChooserTitle.
+  ///
+  /// In es, this message translates to:
+  /// **'Abrir grabación'**
+  String get openRecordingChooserTitle;
+
   /// No description provided for @eqDeviceEditTitle.
   ///
   /// In es, this message translates to:

lib/l10n/gen/app_localizations_ar.dart

@@ -1261,6 +1261,28 @@ class AppLocalizationsAr extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'غفوة مرة أخرى';
 
+  @override
+  String get alarmRingingNotificationTitle => 'منبّه PluriWave';
+
+  @override
+  String get alarmFireChannelName => 'المنبّهات الرنّانة';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'صوت وشاشة عاجلة عندما يجب أن يرنّ منبّه موسيقي';
+
+  @override
+  String get alarmPreNoticeChannelName => 'تنبيهات المنبّهات';
+
+  @override
+  String get alarmPreNoticeChannelDescription => 'إشعارات صامتة قبل المنبّه';
+
+  @override
+  String get openFolderChooserTitle => 'فتح المجلد';
+
+  @override
+  String get openRecordingChooserTitle => 'فتح التسجيل';
+
   @override
   String get eqDeviceEditTitle => 'تعديل الجهاز';
 

lib/l10n/gen/app_localizations_bn.dart

@@ -1268,6 +1268,29 @@ class AppLocalizationsBn extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'আবার স্নুজ করুন';
 
+  @override
+  String get alarmRingingNotificationTitle => 'PluriWave অ্যালার্ম';
+
+  @override
+  String get alarmFireChannelName => 'বাজতে থাকা অ্যালার্ম';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'কোনো মিউজিক অ্যালার্ম বাজার সময় জরুরি শব্দ ও স্ক্রিন';
+
+  @override
+  String get alarmPreNoticeChannelName => 'অ্যালার্ম রিমাইন্ডার';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'অ্যালার্মের আগে নীরব বিজ্ঞপ্তি';
+
+  @override
+  String get openFolderChooserTitle => 'ফোল্ডার খুলুন';
+
+  @override
+  String get openRecordingChooserTitle => 'রেকর্ডিং খুলুন';
+
   @override
   String get eqDeviceEditTitle => 'ডিভাইস সম্পাদনা করুন';
 

lib/l10n/gen/app_localizations_de.dart

@@ -1278,6 +1278,29 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'Erneut schlummern';
 
+  @override
+  String get alarmRingingNotificationTitle => 'PluriWave-Wecker';
+
+  @override
+  String get alarmFireChannelName => 'Klingelnde Wecker';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'Dringender Ton und Bildschirm, wenn ein Musikwecker klingeln soll';
+
+  @override
+  String get alarmPreNoticeChannelName => 'Wecker-Vorankündigungen';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'Lautlose Benachrichtigungen vor dem Wecker';
+
+  @override
+  String get openFolderChooserTitle => 'Ordner öffnen';
+
+  @override
+  String get openRecordingChooserTitle => 'Aufnahme öffnen';
+
   @override
   String get eqDeviceEditTitle => 'Gerät bearbeiten';
 

lib/l10n/gen/app_localizations_en.dart

@@ -1264,6 +1264,29 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'Snooze again';
 
+  @override
+  String get alarmRingingNotificationTitle => 'PluriWave alarm';
+
+  @override
+  String get alarmFireChannelName => 'Ringing alarms';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'Urgent sound and screen when a music alarm must ring';
+
+  @override
+  String get alarmPreNoticeChannelName => 'Alarm reminders';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'Silent notifications before the alarm';
+
+  @override
+  String get openFolderChooserTitle => 'Open folder';
+
+  @override
+  String get openRecordingChooserTitle => 'Open recording';
+
   @override
   String get eqDeviceEditTitle => 'Edit device';
 

lib/l10n/gen/app_localizations_es.dart

@@ -1273,6 +1273,29 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'Posponer otra vez';
 
+  @override
+  String get alarmRingingNotificationTitle => 'Alarma PluriWave';
+
+  @override
+  String get alarmFireChannelName => 'Alarmas sonando';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'Sonido y pantalla urgente cuando una alarma musical debe sonar';
+
+  @override
+  String get alarmPreNoticeChannelName => 'Preavisos de alarmas';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'Notificaciones silenciosas antes de la alarma';
+
+  @override
+  String get openFolderChooserTitle => 'Abrir carpeta';
+
+  @override
+  String get openRecordingChooserTitle => 'Abrir grabación';
+
   @override
   String get eqDeviceEditTitle => 'Editar dispositivo';
 

lib/l10n/gen/app_localizations_fr.dart

@@ -1283,6 +1283,29 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'Reporter encore';
 
+  @override
+  String get alarmRingingNotificationTitle => 'Alarme PluriWave';
+
+  @override
+  String get alarmFireChannelName => 'Alarmes en cours';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'Son et écran urgents lorsqu\'une alarme musicale doit sonner';
+
+  @override
+  String get alarmPreNoticeChannelName => 'Rappels d\'alarme';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'Notifications silencieuses avant l\'alarme';
+
+  @override
+  String get openFolderChooserTitle => 'Ouvrir le dossier';
+
+  @override
+  String get openRecordingChooserTitle => 'Ouvrir l\'enregistrement';
+
   @override
   String get eqDeviceEditTitle => 'Modifier l\'appareil';
 

lib/l10n/gen/app_localizations_hi.dart

@@ -1267,6 +1267,28 @@ class AppLocalizationsHi extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'फिर से स्नूज़ करें';
 
+  @override
+  String get alarmRingingNotificationTitle => 'PluriWave अलार्म';
+
+  @override
+  String get alarmFireChannelName => 'बजते अलार्म';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'जब कोई संगीत अलार्म बजना हो तो तत्काल ध्वनि और स्क्रीन';
+
+  @override
+  String get alarmPreNoticeChannelName => 'अलार्म रिमाइंडर';
+
+  @override
+  String get alarmPreNoticeChannelDescription => 'अलार्म से पहले मूक सूचनाएँ';
+
+  @override
+  String get openFolderChooserTitle => 'फ़ोल्डर खोलें';
+
+  @override
+  String get openRecordingChooserTitle => 'रिकॉर्डिंग खोलें';
+
   @override
   String get eqDeviceEditTitle => 'डिवाइस संपादित करें';
 

lib/l10n/gen/app_localizations_id.dart

@@ -1272,6 +1272,29 @@ class AppLocalizationsId extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'Tunda lagi';
 
+  @override
+  String get alarmRingingNotificationTitle => 'Alarm PluriWave';
+
+  @override
+  String get alarmFireChannelName => 'Alarm berbunyi';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'Suara dan layar mendesak saat alarm musik harus berbunyi';
+
+  @override
+  String get alarmPreNoticeChannelName => 'Pengingat alarm';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'Notifikasi senyap sebelum alarm';
+
+  @override
+  String get openFolderChooserTitle => 'Buka folder';
+
+  @override
+  String get openRecordingChooserTitle => 'Buka rekaman';
+
   @override
   String get eqDeviceEditTitle => 'Edit perangkat';
 

lib/l10n/gen/app_localizations_it.dart

@@ -1278,6 +1278,29 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'Posponi di nuovo';
 
+  @override
+  String get alarmRingingNotificationTitle => 'Sveglia PluriWave';
+
+  @override
+  String get alarmFireChannelName => 'Sveglie in corso';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'Suono e schermo urgenti quando una sveglia musicale deve suonare';
+
+  @override
+  String get alarmPreNoticeChannelName => 'Promemoria sveglia';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'Notifiche silenziose prima della sveglia';
+
+  @override
+  String get openFolderChooserTitle => 'Apri cartella';
+
+  @override
+  String get openRecordingChooserTitle => 'Apri registrazione';
+
   @override
   String get eqDeviceEditTitle => 'Modifica dispositivo';
 

lib/l10n/gen/app_localizations_ja.dart

@@ -1228,6 +1228,27 @@ class AppLocalizationsJa extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'もう一度スヌーズ';
 
+  @override
+  String get alarmRingingNotificationTitle => 'PluriWave アラーム';
+
+  @override
+  String get alarmFireChannelName => '鳴っているアラーム';
+
+  @override
+  String get alarmFireChannelDescription => '音楽アラームが鳴るときの緊急の音と画面';
+
+  @override
+  String get alarmPreNoticeChannelName => 'アラームの事前通知';
+
+  @override
+  String get alarmPreNoticeChannelDescription => 'アラーム前のサイレント通知';
+
+  @override
+  String get openFolderChooserTitle => 'フォルダを開く';
+
+  @override
+  String get openRecordingChooserTitle => '録音を開く';
+
   @override
   String get eqDeviceEditTitle => 'デバイスを編集';
 

lib/l10n/gen/app_localizations_pt.dart

@@ -1270,6 +1270,29 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'Adiar novamente';
 
+  @override
+  String get alarmRingingNotificationTitle => 'Alarme PluriWave';
+
+  @override
+  String get alarmFireChannelName => 'Alarmes tocando';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'Som e tela urgentes quando um alarme musical deve tocar';
+
+  @override
+  String get alarmPreNoticeChannelName => 'Avisos de alarme';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'Notificações silenciosas antes do alarme';
+
+  @override
+  String get openFolderChooserTitle => 'Abrir pasta';
+
+  @override
+  String get openRecordingChooserTitle => 'Abrir gravação';
+
   @override
   String get eqDeviceEditTitle => 'Editar dispositivo';
 

lib/l10n/gen/app_localizations_ru.dart

@@ -1274,6 +1274,29 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get snoozeAgainAction => 'Отложить снова';
 
+  @override
+  String get alarmRingingNotificationTitle => 'Будильник PluriWave';
+
+  @override
+  String get alarmFireChannelName => 'Звонящие будильники';
+
+  @override
+  String get alarmFireChannelDescription =>
+      'Срочный звук и экран, когда должен сработать музыкальный будильник';
+
+  @override
+  String get alarmPreNoticeChannelName => 'Напоминания о будильнике';
+
+  @override
+  String get alarmPreNoticeChannelDescription =>
+      'Беззвучные уведомления перед будильником';
+
+  @override
+  String get openFolderChooserTitle => 'Открыть папку';
+
+  @override
+  String get openRecordingChooserTitle => 'Открыть запись';
+
   @override
   String get eqDeviceEditTitle => 'Изменить устройство';
 

lib/l10n/gen/app_localizations_zh.dart

@@ -1221,6 +1221,27 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get snoozeAgainAction => '再次小睡';
 
+  @override
+  String get alarmRingingNotificationTitle => 'PluriWave 闹钟';
+
+  @override
+  String get alarmFireChannelName => '响铃的闹钟';
+
+  @override
+  String get alarmFireChannelDescription => '音乐闹钟需要响起时的紧急声音和屏幕';
+
+  @override
+  String get alarmPreNoticeChannelName => '闹钟预告';
+
+  @override
+  String get alarmPreNoticeChannelDescription => '闹钟前的静音通知';
+
+  @override
+  String get openFolderChooserTitle => '打开文件夹';
+
+  @override
+  String get openRecordingChooserTitle => '打开录音';
+
   @override
   String get eqDeviceEditTitle => '编辑设备';