fix 7TV emote mutations on computed map, fix search store disposer leak, fix typo

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/screens/channel/chat/stores/chat_assets_store.dart

@@ -443,5 +443,19 @@ abstract class ChatAssetsStoreBase with Store {
     }
   }
 
+  /// Adds a channel emote (e.g., from a live 7TV event).
+  /// Mutates the observable `_channelEmoteToObject` so `emoteToObject` recomputes.
+  @action
+  void addChannelEmote(Emote emote) {
+    _channelEmoteToObject[emote.name] = emote;
+  }
+
+  /// Removes a channel emote by name (e.g., from a live 7TV event).
+  /// Mutates the observable `_channelEmoteToObject` so `emoteToObject` recomputes.
+  @action
+  void removeChannelEmote(String emoteName) {
+    _channelEmoteToObject.remove(emoteName);
+  }
+
   void dispose() => _disposeReaction();
 }

lib/screens/channel/chat/stores/chat_assets_store.g.dart

@@ -320,6 +320,35 @@ mixin _$ChatAssetsStore on ChatAssetsStoreBase, Store {
     );
   }
 
+  late final _$ChatAssetsStoreBaseActionController = ActionController(
+    name: 'ChatAssetsStoreBase',
+    context: context,
+  );
+
+  @override
+  void addChannelEmote(Emote emote) {
+    final _$actionInfo = _$ChatAssetsStoreBaseActionController.startAction(
+      name: 'ChatAssetsStoreBase.addChannelEmote',
+    );
+    try {
+      return super.addChannelEmote(emote);
+    } finally {
+      _$ChatAssetsStoreBaseActionController.endAction(_$actionInfo);
+    }
+  }
+
+  @override
+  void removeChannelEmote(String emoteName) {
+    final _$actionInfo = _$ChatAssetsStoreBaseActionController.startAction(
+      name: 'ChatAssetsStoreBase.removeChannelEmote',
+    );
+    try {
+      return super.removeChannelEmote(emoteName);
+    } finally {
+      _$ChatAssetsStoreBaseActionController.endAction(_$actionInfo);
+    }
+  }
+
   @override
   String toString() {
     return '''

lib/screens/channel/chat/stores/chat_store.dart

@@ -750,7 +750,7 @@ abstract class ChatStoreBase with Store {
 
         final emote = Emote.from7TV(pushedEmote, EmoteType.sevenTVChannel);
 
-        assetsStore.emoteToObject[emote.name] = emote;
+        assetsStore.addChannelEmote(emote);
 
         messageBuffer.add(
           IRCMessage.createNotice(
@@ -763,9 +763,7 @@ abstract class ChatStoreBase with Store {
 
         if (pulledEmote == null) return;
 
-        assetsStore.emoteToObject.removeWhere(
+        assetsStore.removeChannelEmote(pulledEmote.name);
-          (name, _) => name == pulledEmote.name,
-        );
 
         messageBuffer.add(
           IRCMessage.createNotice(

lib/screens/home/search/search_store.dart

@@ -23,6 +23,8 @@ abstract class SearchStoreBase with Store {
 
   Timer? _debounceTimer;
 
+  ReactionDisposer? _disposeReaction;
+
   @readonly
   var _searchText = '';
 
@@ -53,7 +55,7 @@ abstract class SearchStoreBase with Store {
         ObservableList<String>();
 
     // Create a reaction that will limit the history to 8 entries and update it to local storage automatically.
-    autorun((_) {
+    _disposeReaction = autorun((_) {
       if (_searchHistory.length > 8) _searchHistory.removeLast();
       prefs.setStringList('search_history', _searchHistory);
     });
@@ -136,6 +138,7 @@ abstract class SearchStoreBase with Store {
   }
 
   void dispose() {
+    _disposeReaction?.call();
     _debounceTimer?.cancel();
     textEditingController.dispose();
     textFieldFocusNode.dispose();

lib/screens/home/stream_list/stream_list_store.dart

@@ -143,7 +143,7 @@ abstract class ListStoreBase with Store {
   @readonly
   String? _error;
 
-  ReactionDisposer? _pinnedStreamsReactioniDisposer;
+  ReactionDisposer? _pinnedStreamsReactionDisposer;
   ReactionDisposer? _offlineChannelsExpansionDisposer;
 
   ListStoreBase({
@@ -166,7 +166,7 @@ abstract class ListStoreBase with Store {
     }
 
     if (listType == ListType.followed) {
-      _pinnedStreamsReactioniDisposer = reaction(
+      _pinnedStreamsReactionDisposer = reaction(
         (_) => settingsStore.pinnedChannelIds,
         (_) => getPinnedStreams(),
       );
@@ -347,7 +347,7 @@ abstract class ListStoreBase with Store {
   }
 
   void dispose() {
-    _pinnedStreamsReactioniDisposer?.call();
+    _pinnedStreamsReactionDisposer?.call();
     _offlineChannelsExpansionDisposer?.call();
 
     scrollController?.dispose();