refactor: titles

lib/core/services/api_service.dart

@@ -1819,107 +1819,6 @@ class ApiService {
     return null;
   }
 
-  // Generate title for conversation using dedicated endpoint
-  Future<String?> generateTitle({
-    required String conversationId,
-    required List<Map<String, dynamic>> messages,
-    required String model,
-  }) async {
-    try {
-      debugPrint('DEBUG: Generating title for conversation: $conversationId');
-
-      final response = await _dio.post(
-        '/api/v1/tasks/title/completions',
-        data: {'chat_id': conversationId, 'messages': messages, 'model': model},
-      );
-
-      if (response.statusCode == 200 && response.data != null) {
-        DebugLogger.log('Raw title response received successfully');
-
-        // Parse the complex response structure
-        String? extractedTitle;
-
-        try {
-          final responseData = response.data as Map<String, dynamic>;
-
-          // Check if there's a direct title field
-          if (responseData.containsKey('title')) {
-            extractedTitle = responseData['title']?.toString();
-          }
-          // Check if it's in choices format (OpenAI-style response)
-          else if (responseData.containsKey('choices') &&
-              responseData['choices'] is List) {
-            final choices = responseData['choices'] as List;
-            if (choices.isNotEmpty) {
-              final firstChoice = choices[0] as Map<String, dynamic>;
-              if (firstChoice.containsKey('message')) {
-                final message = firstChoice['message'] as Map<String, dynamic>;
-                final content = message['content']?.toString() ?? '';
-
-                // Extract title from JSON-formatted content
-                if (content.contains('```json') && content.contains('```')) {
-                  // Extract JSON from markdown code block
-                  final jsonStart = content.indexOf('```json') + 7;
-                  final jsonEnd = content.lastIndexOf('```');
-                  if (jsonEnd > jsonStart) {
-                    final jsonString = content
-                        .substring(jsonStart, jsonEnd)
-                        .trim();
-                    try {
-                      final jsonData =
-                          jsonDecode(jsonString) as Map<String, dynamic>;
-                      extractedTitle = jsonData['title']?.toString();
-                    } catch (e) {
-                      debugPrint(
-                        'DEBUG: Failed to parse JSON from title response: $e',
-                      );
-                    }
-                  }
-                } else {
-                  // Try to parse the content directly as JSON
-                  try {
-                    final jsonData =
-                        jsonDecode(content) as Map<String, dynamic>;
-                    extractedTitle = jsonData['title']?.toString();
-                  } catch (e) {
-                    // If not JSON, use content as-is
-                    extractedTitle = content;
-                  }
-                }
-              }
-            }
-          }
-
-          // Clean up the extracted title
-          if (extractedTitle != null && extractedTitle.isNotEmpty) {
-            // Remove any remaining markdown formatting
-            extractedTitle = extractedTitle
-                .replaceAll(RegExp(r'```.*?```', dotAll: true), '')
-                .trim();
-            extractedTitle = extractedTitle
-                .replaceAll(RegExp(r'^[{"]|["}]$'), '')
-                .trim();
-
-            // Ensure it's not just "New Chat" or empty
-            if (extractedTitle.isNotEmpty && extractedTitle != 'New Chat') {
-              debugPrint(
-                'DEBUG: Successfully extracted title: $extractedTitle',
-              );
-              return extractedTitle;
-            }
-          }
-        } catch (e) {
-          debugPrint('DEBUG: Error parsing title response: $e');
-        }
-
-        debugPrint('DEBUG: Could not extract valid title from response');
-      }
-    } catch (e) {
-      debugPrint('DEBUG: Failed to generate title: $e');
-    }
-    return null;
-  }
-
   // Send chat completed notification
   Future<void> sendChatCompleted({
     required String chatId,