review changes

mobile/lib/domain/models/metadata_key.dart

@@ -2,8 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:immich_mobile/domain/models/log.model.dart';
 
 enum MetadataDomain {
-  appConfig('app-config'),
-  systemConfig('system-config');
+  appConfig('config.app'),
+  systemConfig('config.system');
 
   final String prefix;
   const MetadataDomain(this.prefix);
@@ -22,10 +22,5 @@ enum MetadataKey<T extends Object> {
 
   String get key => '${domain.prefix}.$name';
 
-  static MetadataKey<Object>? fromKey(String key) {
-    for (final m in MetadataKey.values) {
-      if (m.key == key) return m;
-    }
-    return null;
-  }
+  static Map<String, MetadataKey<Object>> asKeyMap() => {for (var value in MetadataKey.values) value.key: value};
 }

mobile/lib/domain/models/store.model.dart

@@ -22,7 +22,6 @@ enum StoreKey<T> {
   // user settings from [AppSettingsEnum] below:
   loadPreview<bool>._(100),
   loadOriginal<bool>._(101),
-  // id 102 (themeMode) moved to user_config.theme-mode
   tilesPerRow<int>._(103),
   dynamicLayout<bool>._(104),
   groupAssetsBy<int>._(105),
@@ -35,7 +34,6 @@ enum StoreKey<T> {
   albumThumbnailCacheSize<int>._(112),
   selectedAlbumSortOrder<int>._(113),
   advancedTroubleshooting<bool>._(114),
-  // id 115 (logLevel) moved to app_metadata.log-level
   preferRemoteImage<bool>._(116),
   loopVideo<bool>._(117),
   // map related settings
@@ -94,7 +92,11 @@ enum StoreKey<T> {
   cleanupCutoffDaysAgo<int>._(1011),
   cleanupDefaultsInitialized<bool>._(1012),
 
-  syncMigrationStatus<String>._(1013);
+  syncMigrationStatus<String>._(1013),
+
+  // Legacy keys that have been migrated to the new metadata store
+  legacyThemeMode<String>._(102),
+  legacyLogLevel<int>._(115);
 
   const StoreKey._(this.id);
   final int id;