fix: resolve CI linting and type checking errors

tests/unit/test_parsers.py

@@ -1,9 +1,8 @@
 """Unit tests for the parsers module."""
 
-import pytest
-from unittest.mock import Mock, patch, MagicMock
+from unittest.mock import patch
 
-from scaffoldforge.parsers import IssueParser, IssueData, ChecklistItem
+from scaffoldforge.parsers import ChecklistItem, IssueData, IssueParser
 
 
 class TestChecklistItem:
@@ -109,13 +108,13 @@ class TestIssueParser:
     @patch('scaffoldforge.parsers.issue_parser.Github')
     def test_parser_initialization_without_token(self, mock_github):
         """Test parser initialization without token."""
-        parser = IssueParser()
+        IssueParser()
         mock_github.assert_called_once()
 
     @patch('scaffoldforge.parsers.issue_parser.Github')
     def test_parser_initialization_with_token(self, mock_github):
         """Test parser initialization with token."""
-        parser = IssueParser(token="test_token")
+        IssueParser(token="test_token")
         mock_github.assert_called_once_with("test_token")
 
     def test_parse_checklist_simple(self):