fix: resolve CI linting failures and test path

errorfix/__init__.py

@@ -1,18 +1,15 @@
-from .rules import Rule, RuleLoader
-from .patterns import PatternMatcher
-from .formatters import Formatter, TextFormatter, JSONFormatter
-from .plugins import Plugin, PluginLoader, PluginRegistry
 from .cli import cli
+from .rules import RuleLoader
+from .patterns import PatternMatcher
+from .formatters import TextFormatter, JSONFormatter, StructuredFormatter
+from .plugins import PluginLoader
 
 __all__ = [
-    'Rule',
+    'cli',
     'RuleLoader',
     'PatternMatcher',
-    'Formatter',
     'TextFormatter',
     'JSONFormatter',
-    'Plugin',
+    'StructuredFormatter',
     'PluginLoader',
-    'PluginRegistry',
-    'cli',
 ]