Increased mypy version for backend. Fixes for style checks

Author: warrkan

.pre-commit-config.yaml

@@ -30,8 +30,18 @@ repos:
             tokenize-rt==3.2.0,
           ]
         args: [--disallow-untyped-calls, --config-file, lib/pyproject.toml]
+
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: "v1.12.0"
+    hooks:
       - id: mypy
         files: '^backend/.*\.py'
+        additional_dependencies:
+          [
+            types-PyYAML,
+            types-aiofiles,
+            types-requests,
+          ]
         args: [--disallow-untyped-calls, --config-file, backend/pyproject.toml]
 
   - repo: https://github.com/AleksaC/hadolint-py

backend/app/db/migration.py

@@ -24,7 +24,7 @@ class RevisionNotFoundError(Exception):
 class MigrationManager:
     """Manages database connections and migrations"""
 
-    def __init__(self):
+    def __init__(self) -> None:
         self.settings = get_settings()
         self.__ensure_data_directory()
 

backend/app/utils/visualization.py

@@ -110,7 +110,7 @@ def create_visualization(self, original_image: np.ndarray, predictions: Detected
 class VisualizationDispatcher(metaclass=Singleton):
     """Dispatcher for creating visualizations."""
 
-    def __init__(self):
+    def __init__(self) -> None:
         self._creator_map = {
             DetectionResult: DetectionVisualizerCreator(),
             ClassificationResult: ClassificationVisualizerCreator(),