[codex] Add channel output tone and grammar fixer

apps/mobile_chat_app/lib/features/chat/chat_history_api_service.dart

@@ -114,6 +114,7 @@ class ChatHistoryApiService {
     'nodeName',
     'traceId',
     'source',
+    'inputGrammarFix',
   ];
 
   void dispose() {
@@ -206,6 +207,9 @@ class ChatHistoryApiService {
         router: chatRouterFromApi(item['router'] as String?),
         nodeId: item['nodeId'] as String?,
         instructions: item['instructions'] as String?,
+        outputTone: chatOutputToneFromApi(item['outputTone']),
+        inputGrammarFixerEnabled:
+            item['inputGrammarFixerEnabled'] as bool? ?? false,
         resolvedTargetNodeId: item['resolvedTargetNodeId'] as String?,
         resolvedTargetNodeName: item['resolvedTargetNodeName'] as String?,
         resolvedTargetPluginId: item['resolvedTargetPluginId'] as String?,
@@ -438,6 +442,8 @@ class ChatHistoryApiService {
     required ChatRouter? router,
     String? nodeId,
     String? instructions,
+    ChatOutputToneSetting? outputTone,
+    bool? inputGrammarFixerEnabled,
   }) async {
     final response = await _apiClient.put(
       _scopeSettingsUri,
@@ -451,6 +457,9 @@ class ChatHistoryApiService {
         'router': router?.apiValue,
         if (nodeId != null) 'nodeId': nodeId,
         'instructions': instructions,
+        if (outputTone != null) 'outputTone': outputTone.toApiMap(),
+        if (inputGrammarFixerEnabled != null)
+          'inputGrammarFixerEnabled': inputGrammarFixerEnabled,
       }),
     );
     if (response.statusCode != 200) {

apps/mobile_chat_app/lib/features/chat/chat_message.dart

@@ -84,6 +84,37 @@ class ChatInvalidation {
   }
 }
 
+class InputGrammarFixResult {
+  const InputGrammarFixResult({
+    required this.status,
+    this.suggestion,
+  });
+
+  final String status;
+  final String? suggestion;
+
+  bool get isAccepted => status == 'accepted';
+  bool get hasSuggestion =>
+      status == 'suggested' && suggestion != null && suggestion!.isNotEmpty;
+
+  Map<String, Object?> toMap() => {
+        'status': status,
+        'suggestion': suggestion,
+      };
+
+  static InputGrammarFixResult? fromMap(Object? value) {
+    if (value is! Map) return null;
+    final map = Map<Object?, Object?>.from(value);
+    final status = map['status'];
+    if (status != 'accepted' && status != 'suggested') return null;
+    final suggestion = map['suggestion'];
+    return InputGrammarFixResult(
+      status: status as String,
+      suggestion: suggestion is String ? suggestion : null,
+    );
+  }
+}
+
 /// A chat message displayed in the [MessageList].
 ///
 /// This is a thin view-model for the chat UI, distinct from
@@ -124,6 +155,7 @@ class ChatMessage {
     this.isRecovered = false,
     this.agentLoopPhase,
     this.agentLoopTool,
+    this.inputGrammarFix,
     this.invalidations = const [],
   }) : timestamp = timestamp ?? DateTime.now();
 
@@ -173,6 +205,7 @@ class ChatMessage {
   /// The tool name associated with a `tool_call_start` phase message.
   /// Extracted from `agentLoop.toolName` in server metadata.
   final String? agentLoopTool;
+  final InputGrammarFixResult? inputGrammarFix;
   final List<ChatInvalidation> invalidations;
 
   ChatMessage copyWith({
@@ -210,6 +243,7 @@ class ChatMessage {
     bool? isRecovered,
     String? agentLoopPhase,
     String? agentLoopTool,
+    InputGrammarFixResult? inputGrammarFix,
     List<ChatInvalidation>? invalidations,
   }) {
     return ChatMessage(
@@ -248,6 +282,7 @@ class ChatMessage {
       isRecovered: isRecovered ?? this.isRecovered,
       agentLoopPhase: agentLoopPhase ?? this.agentLoopPhase,
       agentLoopTool: agentLoopTool ?? this.agentLoopTool,
+      inputGrammarFix: inputGrammarFix ?? this.inputGrammarFix,
       invalidations: invalidations ?? this.invalidations,
     );
   }
@@ -288,6 +323,7 @@ class ChatMessage {
       'isRecovered': isRecovered,
       'agentLoopPhase': agentLoopPhase,
       'agentLoopTool': agentLoopTool,
+      if (inputGrammarFix != null) 'inputGrammarFix': inputGrammarFix!.toMap(),
       if (invalidations.isNotEmpty)
         'invalidations': invalidations.map((item) => item.toMap()).toList(),
     };
@@ -359,6 +395,7 @@ class ChatMessage {
       isRecovered: map['isRecovered'] as bool? ?? false,
       agentLoopPhase: map['agentLoopPhase'] as String?,
       agentLoopTool: map['agentLoopTool'] as String?,
+      inputGrammarFix: InputGrammarFixResult.fromMap(map['inputGrammarFix']),
       invalidations: parseInvalidations(map['invalidations']),
     );
   }