Fix chat title generation, copying, and note markdown styling

lib/features/chat/providers/chat_providers.dart

@@ -5018,6 +5018,37 @@ Map<String, dynamic> _buildOpenWebUiBackgroundTasks({
   };
 }
 
+bool _shouldGenerateQueuedTitle(
+  List<ChatMessage> messages, {
+  required String assistantMessageId,
+  required bool isTemporary,
+}) {
+  if (isTemporary) return false;
+  final assistantIndex = messages.indexWhere(
+    (message) => message.id == assistantMessageId,
+  );
+  if (assistantIndex < 0) return false;
+  return messages
+          .take(assistantIndex)
+          .where((message) => message.role == 'user')
+          .length ==
+      1;
+}
+
+/// Exposes [_shouldGenerateQueuedTitle] for focused regression tests.
+@visibleForTesting
+bool shouldGenerateQueuedTitleForTest(
+  List<ChatMessage> messages, {
+  required String assistantMessageId,
+  required bool isTemporary,
+}) {
+  return _shouldGenerateQueuedTitle(
+    messages,
+    assistantMessageId: assistantMessageId,
+    isTemporary: isTemporary,
+  );
+}
+
 /// Exposes [_buildOpenWebUiBackgroundTasks] for focused unit tests.
 @visibleForTesting
 Map<String, dynamic> buildOpenWebUiBackgroundTasksForTest({
@@ -8133,7 +8164,11 @@ Future<void> runQueuedCompletion(
 
   final bgTasks = _buildOpenWebUiBackgroundTasks(
     userSettings: userSettingsData,
-    shouldGenerateTitle: false,
+    shouldGenerateTitle: _shouldGenerateQueuedTitle(
+      messages,
+      assistantMessageId: assistantMessageId,
+      isTemporary: isTemporary,
+    ),
     webSearchEnabled: enableWebSearch,
     imageGenerationEnabled: enableImageGeneration,
   );
@@ -8377,7 +8412,11 @@ Future<void> runHeadlessCompletion(
 
   final bgTasks = _buildOpenWebUiBackgroundTasks(
     userSettings: userSettingsData,
-    shouldGenerateTitle: false,
+    shouldGenerateTitle: _shouldGenerateQueuedTitle(
+      messages,
+      assistantMessageId: assistantMessageId,
+      isTemporary: false,
+    ),
     webSearchEnabled: enableWebSearch,
     imageGenerationEnabled: enableImageGeneration,
   );

lib/features/chat/views/chat_page.dart

@@ -2541,8 +2541,9 @@ class _ChatPageState extends ConsumerState<ChatPage> {
   }
 
   void _copyMessage(String content) {
-    // Strip reasoning blocks and annotations from copied content
-    final cleanedContent = ConduitMarkdownPreprocessor.sanitize(content);
+    final cleanedContent = ConduitMarkdownPreprocessor.sanitizeForClipboard(
+      content,
+    );
     Clipboard.setData(ClipboardData(text: cleanedContent));
   }
 

lib/features/notes/views/note_editor_page.dart

@@ -48,6 +48,104 @@ import '../widgets/audio_player_dialog.dart';
 import '../widgets/audio_recording_overlay.dart';
 import '../widgets/note_file_attachment.dart';
 
+/// Builds the rich-note editor theme from Conduit's semantic color tokens.
+///
+/// Fleather's fallback block styles derive their colors from a separate
+/// [DefaultTextStyle]. Every block type must therefore be mapped explicitly so
+/// headings and lists remain readable in both brightness modes.
+FleatherThemeData buildNoteEditorFleatherTheme(BuildContext context) {
+  final theme = context.conduitTheme;
+  final fallback = FleatherThemeData.fallback(context);
+  final base = AppTypography.bodyLargeStyle.copyWith(
+    color: theme.textPrimary,
+    height: 1.8,
+  );
+
+  TextStyle blockStyle(TextStyle source, {Color? color}) {
+    return base
+        .merge(source)
+        .copyWith(
+          color: color ?? theme.textPrimary,
+          fontFamily: AppTypography.fontFamily,
+        );
+  }
+
+  TextBlockTheme themedBlock(
+    TextBlockTheme source, {
+    TextStyle? style,
+    BoxDecoration? decoration,
+  }) {
+    return TextBlockTheme(
+      style: style ?? blockStyle(source.style),
+      spacing: source.spacing,
+      lineSpacing: source.lineSpacing,
+      decoration: decoration ?? source.decoration,
+    );
+  }
+
+  TextStyle inlineCodeStyle(TextStyle? source) {
+    return (source ?? fallback.inlineCode.style).copyWith(
+      color: theme.codeText,
+      fontFamily: AppTypography.monospaceFontFamily,
+    );
+  }
+
+  return fallback.copyWith(
+    paragraph: TextBlockTheme(
+      style: base,
+      spacing: const VerticalSpacing(top: 0, bottom: 6),
+    ),
+    heading1: themedBlock(fallback.heading1),
+    heading2: themedBlock(fallback.heading2),
+    heading3: themedBlock(fallback.heading3),
+    heading4: themedBlock(fallback.heading4),
+    heading5: themedBlock(fallback.heading5),
+    heading6: themedBlock(fallback.heading6),
+    lists: themedBlock(fallback.lists, style: base),
+    quote: themedBlock(
+      fallback.quote,
+      style: blockStyle(fallback.quote.style, color: theme.textSecondary),
+      decoration: BoxDecoration(
+        border: BorderDirectional(
+          start: BorderSide(width: 4, color: theme.dividerColor),
+        ),
+      ),
+    ),
+    code: themedBlock(
+      fallback.code,
+      style: fallback.code.style.copyWith(
+        color: theme.codeText,
+        fontFamily: AppTypography.monospaceFontFamily,
+      ),
+      decoration: BoxDecoration(
+        color: theme.codeBackground,
+        border: Border.all(color: theme.codeBorder),
+        borderRadius:
+            fallback.code.decoration?.borderRadius ?? BorderRadius.circular(2),
+      ),
+    ),
+    inlineCode: InlineCodeThemeData(
+      style: inlineCodeStyle(fallback.inlineCode.style),
+      heading1: inlineCodeStyle(fallback.inlineCode.heading1),
+      heading2: inlineCodeStyle(fallback.inlineCode.heading2),
+      heading3: inlineCodeStyle(fallback.inlineCode.heading3),
+      backgroundColor: theme.codeBackground,
+      radius: fallback.inlineCode.radius,
+    ),
+    horizontalRuleThemeData: HorizontalRuleThemeData(
+      height: fallback.horizontalRule.height,
+      thickness: fallback.horizontalRule.thickness,
+      color: theme.dividerColor,
+    ),
+    bold: const TextStyle(fontWeight: FontWeight.bold),
+    italic: const TextStyle(fontStyle: FontStyle.italic),
+    link: TextStyle(
+      color: theme.buttonPrimary,
+      decoration: TextDecoration.underline,
+    ),
+  );
+}
+
 /// Page for editing a note with OpenWebUI-style layout.
 class NoteEditorPage extends ConsumerStatefulWidget {
   final String noteId;
@@ -2264,24 +2362,7 @@ class _NoteEditorPageState extends ConsumerState<NoteEditorPage> {
   /// Builds a Fleather theme derived from the app's typography and colours so
   /// the rich-text editor matches the rest of the note UI.
   FleatherThemeData _buildFleatherTheme(BuildContext context) {
-    final theme = context.conduitTheme;
-    final base = AppTypography.bodyLargeStyle.copyWith(
-      color: theme.textPrimary,
-      height: 1.8,
-    );
-    final fallback = FleatherThemeData.fallback(context);
-    return fallback.copyWith(
-      paragraph: TextBlockTheme(
-        style: base,
-        spacing: const VerticalSpacing(top: 0, bottom: 6),
-      ),
-      bold: const TextStyle(fontWeight: FontWeight.bold),
-      italic: const TextStyle(fontStyle: FontStyle.italic),
-      link: TextStyle(
-        color: theme.buttonPrimary,
-        decoration: TextDecoration.underline,
-      ),
-    );
+    return buildNoteEditorFleatherTheme(context);
   }
 
   /// Play an audio file attachment.

lib/shared/widgets/markdown/markdown_preprocessor.dart

@@ -64,6 +64,7 @@ class ConduitMarkdownPreprocessor {
     multiLine: true,
     dotAll: true,
   );
+  static final _codeSpanOrFence = RegExp(r'(`+)([\s\S]*?)\1');
   static final _allDetailsBlocks = RegExp(
     r'<details[^>]*>[\s\S]*?</details>',
     multiLine: true,
@@ -179,11 +180,28 @@ class ConduitMarkdownPreprocessor {
     return input
         .replaceAll('\r\n', '\n')
         .transform(_stripLinkReferenceDefinitions)
-        .replaceAll(_reasoningBlocks, '')
+        .transform(
+          (content) => _removeMatchesOutsideCode(content, _reasoningBlocks),
+        )
         .replaceAll(_multipleNewlines, '\n\n')
         .trim();
   }
 
+  /// Sanitizes message content for copying while omitting internal tool calls.
+  ///
+  /// Tool-call markup inside code spans is preserved so documentation and
+  /// examples are copied faithfully. Ordinary `<details>` blocks are also left
+  /// untouched.
+  static String sanitizeForClipboard(String input) {
+    if (input.isEmpty) return input;
+
+    final sanitized = sanitize(input);
+    return _removeMatchesOutsideCode(
+      sanitized,
+      _toolCallBlocks,
+    ).replaceAll(_multipleNewlines, '\n\n').trim();
+  }
+
   /// Converts markdown to plain text for text-to-speech.
   static String toPlainText(String input) {
     if (input.trim().isEmpty) return '';
@@ -228,10 +246,7 @@ class ConduitMarkdownPreprocessor {
   static String removeAllDetails(String input) {
     if (input.isEmpty) return input;
 
-    return _replaceOutsideCode(
-      input,
-      (segment) => segment.replaceAll(_allDetailsBlocks, ''),
-    );
+    return _removeMatchesOutsideCode(input, _allDetailsBlocks);
   }
 
   /// Breaks long inline code spans for better wrapping.
@@ -304,26 +319,34 @@ class ConduitMarkdownPreprocessor {
   static String _stripLinkReferenceDefinitions(String input) {
     if (!input.contains(']:')) return input;
 
-    final stripped = _replaceOutsideCode(
-      input,
-      (segment) => segment.replaceAll(_linkReferenceDefinition, ''),
-    );
+    final stripped = _removeMatchesOutsideCode(input, _linkReferenceDefinition);
     return stripped.replaceAll(_multipleNewlines, '\n\n').trim();
   }
 
   static String _openWebUiCleanText(String input) {
     return _openWebUiRemoveFormattings(_removeEmojis(input.trim()));
   }
 
-  static String _replaceOutsideCode(
-    String input,
-    String Function(String segment) replacer,
-  ) {
-    return input.splitMapJoin(
-      RegExp(r'```[\s\S]*?```|`[\s\S]*?`'),
-      onMatch: (match) => match[0] ?? '',
-      onNonMatch: replacer,
-    );
+  static String _removeMatchesOutsideCode(String input, RegExp pattern) {
+    final codeSpans = <String>[];
+    var marker = '\u0000conduit-code-span-';
+    while (input.contains(marker)) {
+      marker = '\u0000$marker';
+    }
+
+    final masked = input.replaceAllMapped(_codeSpanOrFence, (match) {
+      final index = codeSpans.length;
+      codeSpans.add(match[0] ?? '');
+      return '$marker$index\u0000';
+    });
+    var output = masked.replaceAll(pattern, '');
+
+    // Placeholders inside removed matches no longer exist, so only code from
+    // the retained content is restored.
+    for (var index = 0; index < codeSpans.length; index++) {
+      output = output.replaceAll('$marker$index\u0000', codeSpans[index]);
+    }
+    return output;
   }
 
   static String _removeEmojis(String input) {