feat(meditate): the instance's library in the app: Explore, its player, courses, keeping offline

Explore shows the instance's library below Meditate's practices, where it
has one: its courses and items by category (Meditate's eleven, named in
English and German, and the operator's own) and by the same search; an
instance without one shows nothing more. An item's page: its recordings
to choose, Play, a favourite (kept in the sealed settings under
library/<id>), keeping it on the device and removing it, and for a sound,
a silent sitting with it looped; its credit and licence. The player
plays, pauses and seeks; played to its end it is kept as a sitting, and
as its course's lesson done (lesson_done, sealed and synced). Settings
lists the library's credits beside About; Today shows its favourites.

The last catalogue is kept in the person's folder for offline; files are
fetched with the catalogue's access, asked for again shortly before it
ends. ADR 0038, D16.

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

apps/meditate/halkyon_meditate_flutter/lib/l10n/app_de.arb

@@ -171,5 +171,41 @@
   "dreamStopDictating": "Diktat beenden",
   "dreamListening": "Ich höre zu …",
   "dreamSpeechUnavailable": "Dieses Gerät kann gerade nicht zuhören. Darf die App das Mikrofon nutzen?",
-  "todayDreamSpeak": "Erzählen"
+  "todayDreamSpeak": "Erzählen",
+  "exploreLibrary": "Von {server}",
+  "libraryCourses": "Kurse",
+  "libraryCourse": "Kurs",
+  "libraryCategoryMeditation": "Meditation",
+  "libraryCategorySleepStory": "Einschlafgeschichten",
+  "libraryCategorySound": "Klänge",
+  "libraryCategoryMovement": "Bewegung",
+  "libraryCategoryAutogenicTraining": "Autogenes Training",
+  "libraryCategoryProgressiveMuscleRelaxation": "Progressive Muskelentspannung",
+  "libraryCategoryRoutine": "Routinen",
+  "libraryCategoryDreamJourney": "Traumreisen",
+  "libraryCategoryKnowledge": "Wissen",
+  "libraryCategoryMorningStory": "Morgengeschichten",
+  "libraryCategoryOther": "Anderes",
+  "libraryLessons": "{count, plural, =1{1 Lektion} other{{count} Lektionen}}",
+  "libraryLessonsDone": "{done} von {count} erledigt",
+  "libraryLessonDone": "Erledigt",
+  "libraryWith": "Mit {speaker}",
+  "libraryPlay": "Abspielen",
+  "libraryPause": "Pause",
+  "libraryResume": "Weiter",
+  "libraryStop": "Beenden",
+  "libraryRecording": "Aufnahme",
+  "libraryKeep": "Auf dem Gerät behalten",
+  "libraryKeeping": "Wird geladen …",
+  "libraryKept": "Auf dem Gerät",
+  "libraryRemove": "Vom Gerät entfernen",
+  "libraryKeepFailed": "Das ließ sich nicht laden. Versuch es wieder, wenn du online bist.",
+  "libraryPlayFailed": "Das lässt sich gerade nicht abspielen. Bist du online?",
+  "librarySitWithSound": "Mit diesem Klang still sitzen",
+  "libraryCredit": "Nachweis",
+  "libraryLicence": "Lizenz",
+  "libraryCredits": "Nachweise der Bibliothek",
+  "libraryCreditsIntro": "Was die Bibliothek von {server} bietet, wem es jeweils zu verdanken ist und unter welcher Lizenz.",
+  "libraryGone": "Das ist nicht mehr in der Bibliothek.",
+  "libraryFromLibrary": "Aus der Bibliothek"
 }

apps/meditate/halkyon_meditate_flutter/lib/l10n/app_en.arb

@@ -259,5 +259,79 @@
   "dreamStopDictating": "Stop dictating",
   "dreamListening": "Listening…",
   "dreamSpeechUnavailable": "This device can't listen now. Does the app have the microphone's permission?",
-  "todayDreamSpeak": "Speak it"
+  "todayDreamSpeak": "Speak it",
+  "exploreLibrary": "From {server}",
+  "@exploreLibrary": {
+    "placeholders": {
+      "server": {
+        "type": "String"
+      }
+    }
+  },
+  "libraryCourses": "Courses",
+  "libraryCourse": "Course",
+  "libraryCategoryMeditation": "Meditation",
+  "libraryCategorySleepStory": "Sleep stories",
+  "libraryCategorySound": "Sounds",
+  "libraryCategoryMovement": "Movement",
+  "libraryCategoryAutogenicTraining": "Autogenic training",
+  "libraryCategoryProgressiveMuscleRelaxation": "Progressive muscle relaxation",
+  "libraryCategoryRoutine": "Routines",
+  "libraryCategoryDreamJourney": "Dream journeys",
+  "libraryCategoryKnowledge": "Knowledge",
+  "libraryCategoryMorningStory": "Morning stories",
+  "libraryCategoryOther": "Other",
+  "libraryLessons": "{count, plural, =1{1 lesson} other{{count} lessons}}",
+  "@libraryLessons": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "libraryLessonsDone": "{done} of {count} done",
+  "@libraryLessonsDone": {
+    "placeholders": {
+      "done": {
+        "type": "int"
+      },
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "libraryLessonDone": "Done",
+  "libraryWith": "With {speaker}",
+  "@libraryWith": {
+    "placeholders": {
+      "speaker": {
+        "type": "String"
+      }
+    }
+  },
+  "libraryPlay": "Play",
+  "libraryPause": "Pause",
+  "libraryResume": "Resume",
+  "libraryStop": "Stop",
+  "libraryRecording": "Recording",
+  "libraryKeep": "Keep on this device",
+  "libraryKeeping": "Fetching…",
+  "libraryKept": "On this device",
+  "libraryRemove": "Remove from this device",
+  "libraryKeepFailed": "It couldn't be fetched. Try again when you're online.",
+  "libraryPlayFailed": "It can't be played now. Are you online?",
+  "librarySitWithSound": "Sit in silence with this sound",
+  "libraryCredit": "Credit",
+  "libraryLicence": "Licence",
+  "libraryCredits": "Library credits",
+  "libraryCreditsIntro": "What the library of {server} offers, whom each is credited to and under which licence.",
+  "@libraryCreditsIntro": {
+    "placeholders": {
+      "server": {
+        "type": "String"
+      }
+    }
+  },
+  "libraryGone": "This isn't in the library any more.",
+  "libraryFromLibrary": "From the library"
 }

apps/meditate/halkyon_meditate_flutter/lib/l10n/app_localizations.dart

@@ -1131,6 +1131,222 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Speak it'**
   String get todayDreamSpeak;
+
+  /// No description provided for @exploreLibrary.
+  ///
+  /// In en, this message translates to:
+  /// **'From {server}'**
+  String exploreLibrary(String server);
+
+  /// No description provided for @libraryCourses.
+  ///
+  /// In en, this message translates to:
+  /// **'Courses'**
+  String get libraryCourses;
+
+  /// No description provided for @libraryCourse.
+  ///
+  /// In en, this message translates to:
+  /// **'Course'**
+  String get libraryCourse;
+
+  /// No description provided for @libraryCategoryMeditation.
+  ///
+  /// In en, this message translates to:
+  /// **'Meditation'**
+  String get libraryCategoryMeditation;
+
+  /// No description provided for @libraryCategorySleepStory.
+  ///
+  /// In en, this message translates to:
+  /// **'Sleep stories'**
+  String get libraryCategorySleepStory;
+
+  /// No description provided for @libraryCategorySound.
+  ///
+  /// In en, this message translates to:
+  /// **'Sounds'**
+  String get libraryCategorySound;
+
+  /// No description provided for @libraryCategoryMovement.
+  ///
+  /// In en, this message translates to:
+  /// **'Movement'**
+  String get libraryCategoryMovement;
+
+  /// No description provided for @libraryCategoryAutogenicTraining.
+  ///
+  /// In en, this message translates to:
+  /// **'Autogenic training'**
+  String get libraryCategoryAutogenicTraining;
+
+  /// No description provided for @libraryCategoryProgressiveMuscleRelaxation.
+  ///
+  /// In en, this message translates to:
+  /// **'Progressive muscle relaxation'**
+  String get libraryCategoryProgressiveMuscleRelaxation;
+
+  /// No description provided for @libraryCategoryRoutine.
+  ///
+  /// In en, this message translates to:
+  /// **'Routines'**
+  String get libraryCategoryRoutine;
+
+  /// No description provided for @libraryCategoryDreamJourney.
+  ///
+  /// In en, this message translates to:
+  /// **'Dream journeys'**
+  String get libraryCategoryDreamJourney;
+
+  /// No description provided for @libraryCategoryKnowledge.
+  ///
+  /// In en, this message translates to:
+  /// **'Knowledge'**
+  String get libraryCategoryKnowledge;
+
+  /// No description provided for @libraryCategoryMorningStory.
+  ///
+  /// In en, this message translates to:
+  /// **'Morning stories'**
+  String get libraryCategoryMorningStory;
+
+  /// No description provided for @libraryCategoryOther.
+  ///
+  /// In en, this message translates to:
+  /// **'Other'**
+  String get libraryCategoryOther;
+
+  /// No description provided for @libraryLessons.
+  ///
+  /// In en, this message translates to:
+  /// **'{count, plural, =1{1 lesson} other{{count} lessons}}'**
+  String libraryLessons(int count);
+
+  /// No description provided for @libraryLessonsDone.
+  ///
+  /// In en, this message translates to:
+  /// **'{done} of {count} done'**
+  String libraryLessonsDone(int done, int count);
+
+  /// No description provided for @libraryLessonDone.
+  ///
+  /// In en, this message translates to:
+  /// **'Done'**
+  String get libraryLessonDone;
+
+  /// No description provided for @libraryWith.
+  ///
+  /// In en, this message translates to:
+  /// **'With {speaker}'**
+  String libraryWith(String speaker);
+
+  /// No description provided for @libraryPlay.
+  ///
+  /// In en, this message translates to:
+  /// **'Play'**
+  String get libraryPlay;
+
+  /// No description provided for @libraryPause.
+  ///
+  /// In en, this message translates to:
+  /// **'Pause'**
+  String get libraryPause;
+
+  /// No description provided for @libraryResume.
+  ///
+  /// In en, this message translates to:
+  /// **'Resume'**
+  String get libraryResume;
+
+  /// No description provided for @libraryStop.
+  ///
+  /// In en, this message translates to:
+  /// **'Stop'**
+  String get libraryStop;
+
+  /// No description provided for @libraryRecording.
+  ///
+  /// In en, this message translates to:
+  /// **'Recording'**
+  String get libraryRecording;
+
+  /// No description provided for @libraryKeep.
+  ///
+  /// In en, this message translates to:
+  /// **'Keep on this device'**
+  String get libraryKeep;
+
+  /// No description provided for @libraryKeeping.
+  ///
+  /// In en, this message translates to:
+  /// **'Fetching…'**
+  String get libraryKeeping;
+
+  /// No description provided for @libraryKept.
+  ///
+  /// In en, this message translates to:
+  /// **'On this device'**
+  String get libraryKept;
+
+  /// No description provided for @libraryRemove.
+  ///
+  /// In en, this message translates to:
+  /// **'Remove from this device'**
+  String get libraryRemove;
+
+  /// No description provided for @libraryKeepFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'It couldn\'t be fetched. Try again when you\'re online.'**
+  String get libraryKeepFailed;
+
+  /// No description provided for @libraryPlayFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'It can\'t be played now. Are you online?'**
+  String get libraryPlayFailed;
+
+  /// No description provided for @librarySitWithSound.
+  ///
+  /// In en, this message translates to:
+  /// **'Sit in silence with this sound'**
+  String get librarySitWithSound;
+
+  /// No description provided for @libraryCredit.
+  ///
+  /// In en, this message translates to:
+  /// **'Credit'**
+  String get libraryCredit;
+
+  /// No description provided for @libraryLicence.
+  ///
+  /// In en, this message translates to:
+  /// **'Licence'**
+  String get libraryLicence;
+
+  /// No description provided for @libraryCredits.
+  ///
+  /// In en, this message translates to:
+  /// **'Library credits'**
+  String get libraryCredits;
+
+  /// No description provided for @libraryCreditsIntro.
+  ///
+  /// In en, this message translates to:
+  /// **'What the library of {server} offers, whom each is credited to and under which licence.'**
+  String libraryCreditsIntro(String server);
+
+  /// No description provided for @libraryGone.
+  ///
+  /// In en, this message translates to:
+  /// **'This isn\'t in the library any more.'**
+  String get libraryGone;
+
+  /// No description provided for @libraryFromLibrary.
+  ///
+  /// In en, this message translates to:
+  /// **'From the library'**
+  String get libraryFromLibrary;
 }
 
 class _AppLocalizationsDelegate

apps/meditate/halkyon_meditate_flutter/lib/l10n/app_localizations_de.dart

@@ -607,4 +607,131 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get todayDreamSpeak => 'Erzählen';
+
+  @override
+  String exploreLibrary(String server) {
+    return 'Von $server';
+  }
+
+  @override
+  String get libraryCourses => 'Kurse';
+
+  @override
+  String get libraryCourse => 'Kurs';
+
+  @override
+  String get libraryCategoryMeditation => 'Meditation';
+
+  @override
+  String get libraryCategorySleepStory => 'Einschlafgeschichten';
+
+  @override
+  String get libraryCategorySound => 'Klänge';
+
+  @override
+  String get libraryCategoryMovement => 'Bewegung';
+
+  @override
+  String get libraryCategoryAutogenicTraining => 'Autogenes Training';
+
+  @override
+  String get libraryCategoryProgressiveMuscleRelaxation =>
+      'Progressive Muskelentspannung';
+
+  @override
+  String get libraryCategoryRoutine => 'Routinen';
+
+  @override
+  String get libraryCategoryDreamJourney => 'Traumreisen';
+
+  @override
+  String get libraryCategoryKnowledge => 'Wissen';
+
+  @override
+  String get libraryCategoryMorningStory => 'Morgengeschichten';
+
+  @override
+  String get libraryCategoryOther => 'Anderes';
+
+  @override
+  String libraryLessons(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count Lektionen',
+      one: '1 Lektion',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String libraryLessonsDone(int done, int count) {
+    return '$done von $count erledigt';
+  }
+
+  @override
+  String get libraryLessonDone => 'Erledigt';
+
+  @override
+  String libraryWith(String speaker) {
+    return 'Mit $speaker';
+  }
+
+  @override
+  String get libraryPlay => 'Abspielen';
+
+  @override
+  String get libraryPause => 'Pause';
+
+  @override
+  String get libraryResume => 'Weiter';
+
+  @override
+  String get libraryStop => 'Beenden';
+
+  @override
+  String get libraryRecording => 'Aufnahme';
+
+  @override
+  String get libraryKeep => 'Auf dem Gerät behalten';
+
+  @override
+  String get libraryKeeping => 'Wird geladen …';
+
+  @override
+  String get libraryKept => 'Auf dem Gerät';
+
+  @override
+  String get libraryRemove => 'Vom Gerät entfernen';
+
+  @override
+  String get libraryKeepFailed =>
+      'Das ließ sich nicht laden. Versuch es wieder, wenn du online bist.';
+
+  @override
+  String get libraryPlayFailed =>
+      'Das lässt sich gerade nicht abspielen. Bist du online?';
+
+  @override
+  String get librarySitWithSound => 'Mit diesem Klang still sitzen';
+
+  @override
+  String get libraryCredit => 'Nachweis';
+
+  @override
+  String get libraryLicence => 'Lizenz';
+
+  @override
+  String get libraryCredits => 'Nachweise der Bibliothek';
+
+  @override
+  String libraryCreditsIntro(String server) {
+    return 'Was die Bibliothek von $server bietet, wem es jeweils zu verdanken ist und unter welcher Lizenz.';
+  }
+
+  @override
+  String get libraryGone => 'Das ist nicht mehr in der Bibliothek.';
+
+  @override
+  String get libraryFromLibrary => 'Aus der Bibliothek';
 }

apps/meditate/halkyon_meditate_flutter/lib/l10n/app_localizations_en.dart

@@ -603,6 +603,132 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get todayDreamSpeak => 'Speak it';
+
+  @override
+  String exploreLibrary(String server) {
+    return 'From $server';
+  }
+
+  @override
+  String get libraryCourses => 'Courses';
+
+  @override
+  String get libraryCourse => 'Course';
+
+  @override
+  String get libraryCategoryMeditation => 'Meditation';
+
+  @override
+  String get libraryCategorySleepStory => 'Sleep stories';
+
+  @override
+  String get libraryCategorySound => 'Sounds';
+
+  @override
+  String get libraryCategoryMovement => 'Movement';
+
+  @override
+  String get libraryCategoryAutogenicTraining => 'Autogenic training';
+
+  @override
+  String get libraryCategoryProgressiveMuscleRelaxation =>
+      'Progressive muscle relaxation';
+
+  @override
+  String get libraryCategoryRoutine => 'Routines';
+
+  @override
+  String get libraryCategoryDreamJourney => 'Dream journeys';
+
+  @override
+  String get libraryCategoryKnowledge => 'Knowledge';
+
+  @override
+  String get libraryCategoryMorningStory => 'Morning stories';
+
+  @override
+  String get libraryCategoryOther => 'Other';
+
+  @override
+  String libraryLessons(int count) {
+    String _temp0 = intl.Intl.pluralLogic(
+      count,
+      locale: localeName,
+      other: '$count lessons',
+      one: '1 lesson',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String libraryLessonsDone(int done, int count) {
+    return '$done of $count done';
+  }
+
+  @override
+  String get libraryLessonDone => 'Done';
+
+  @override
+  String libraryWith(String speaker) {
+    return 'With $speaker';
+  }
+
+  @override
+  String get libraryPlay => 'Play';
+
+  @override
+  String get libraryPause => 'Pause';
+
+  @override
+  String get libraryResume => 'Resume';
+
+  @override
+  String get libraryStop => 'Stop';
+
+  @override
+  String get libraryRecording => 'Recording';
+
+  @override
+  String get libraryKeep => 'Keep on this device';
+
+  @override
+  String get libraryKeeping => 'Fetching…';
+
+  @override
+  String get libraryKept => 'On this device';
+
+  @override
+  String get libraryRemove => 'Remove from this device';
+
+  @override
+  String get libraryKeepFailed =>
+      'It couldn\'t be fetched. Try again when you\'re online.';
+
+  @override
+  String get libraryPlayFailed => 'It can\'t be played now. Are you online?';
+
+  @override
+  String get librarySitWithSound => 'Sit in silence with this sound';
+
+  @override
+  String get libraryCredit => 'Credit';
+
+  @override
+  String get libraryLicence => 'Licence';
+
+  @override
+  String get libraryCredits => 'Library credits';
+
+  @override
+  String libraryCreditsIntro(String server) {
+    return 'What the library of $server offers, whom each is credited to and under which licence.';
+  }
+
+  @override
+  String get libraryGone => 'This isn\'t in the library any more.';
+
+  @override
+  String get libraryFromLibrary => 'From the library';
 }
 
 /// The translations for English, as used in the United Kingdom (`en_GB`).