diff --git a/pyproject.toml b/pyproject.toml
index 74ed051..6c67d3f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,3 +34,37 @@ dataloader = "dataloader.__main__:main"
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
+
+
+[tool.black]
+line-length = 88
+target-version = ["py311"]
+skip-string-normalization = false
+preview = true
+
+[tool.isort]
+profile = "black"
+line_length = 88
+multi_line_output = 3
+include_trailing_comma = true
+force_grid_wrap = 0
+combine_as_imports = true
+known_first_party = ["dataloader"]
+src_paths = ["src"]
+
+[tool.ruff]
+line-length = 88
+target-version = "py311"
+fix = true
+lint.select = ["E", "F", "W", "I", "N", "B"]
+lint.ignore = [
+    "E501",
+]
+exclude = [
+    ".git",
+    "__pycache__",
+    "build",
+    "dist",
+    ".venv",
+    "venv",
+]
\ No newline at end of file
diff --git a/src/dataloader/__init__.py b/src/dataloader/__init__.py
index b64b871..a1be0f2 100644
--- a/src/dataloader/__init__.py
+++ b/src/dataloader/__init__.py
@@ -5,7 +5,6 @@
 
 from . import api
 
-
 __all__ = [
     "api",
 ]
diff --git a/src/dataloader/__main__.py b/src/dataloader/__main__.py
index fae0177..b84b9e9 100644
--- a/src/dataloader/__main__.py
+++ b/src/dataloader/__main__.py
@@ -1,15 +1,17 @@
 import uvicorn
 
-
 from dataloader.api import app_main
 from dataloader.config import APP_CONFIG
-from dataloader.logger.uvicorn_logging_config import LOGGING_CONFIG, setup_uvicorn_logging
+from dataloader.logger.uvicorn_logging_config import (
+    LOGGING_CONFIG,
+    setup_uvicorn_logging,
+)
 
 
 def main() -> None:
-    # Инициализируем логирование uvicorn перед запуском
+
     setup_uvicorn_logging()
-    
+
     uvicorn.run(
         app_main,
         host=APP_CONFIG.app.app_host,
diff --git a/src/dataloader/api/__init__.py b/src/dataloader/api/__init__.py
index dd00155..8a4dba2 100644
--- a/src/dataloader/api/__init__.py
+++ b/src/dataloader/api/__init__.py
@@ -1,20 +1,19 @@
-# src/dataloader/api/__init__.py
 from __future__ import annotations
 
-from collections.abc import AsyncGenerator
 import contextlib
 import typing as tp
+from collections.abc import AsyncGenerator
 
 from fastapi import FastAPI
 
+from dataloader.context import APP_CTX
+from dataloader.workers.manager import WorkerManager, build_manager_from_env
+from dataloader.workers.pipelines import load_all as load_pipelines
+
 from .metric_router import router as metric_router
 from .middleware import log_requests
 from .os_router import router as service_router
 from .v1 import router as v1_router
-from dataloader.context import APP_CTX
-from dataloader.workers.manager import build_manager_from_env, WorkerManager
-from dataloader.workers.pipelines import load_all as load_pipelines
-
 
 _manager: WorkerManager | None = None
 
diff --git a/src/dataloader/api/metric_router.py b/src/dataloader/api/metric_router.py
index c9fa14a..4f28bcc 100644
--- a/src/dataloader/api/metric_router.py
+++ b/src/dataloader/api/metric_router.py
@@ -1,10 +1,11 @@
-""" 🚨 НЕ РЕДАКТИРОВАТЬ !!!!!!
-"""
+"""🚨 НЕ РЕДАКТИРОВАТЬ !!!!!!"""
 
 import uuid
 
 from fastapi import APIRouter, Header, status
+
 from dataloader.context import APP_CTX
+
 from . import schemas
 
 router = APIRouter()
@@ -17,8 +18,7 @@ logger = APP_CTX.get_logger()
     response_model=schemas.RateResponse,
 )
 async def like(
-    # pylint: disable=C0103,W0613
-    header_Request_Id: str = Header(uuid.uuid4(), alias="Request-Id")
+    header_request_id: str = Header(uuid.uuid4(), alias="Request-Id")
 ) -> dict[str, str]:
     logger.metric(
         metric_name="dataloader_likes_total",
@@ -33,8 +33,7 @@ async def like(
     response_model=schemas.RateResponse,
 )
 async def dislike(
-    # pylint: disable=C0103,W0613
-    header_Request_Id: str = Header(uuid.uuid4(), alias="Request-Id")
+    header_request_id: str = Header(uuid.uuid4(), alias="Request-Id")
 ) -> dict[str, str]:
     logger.metric(
         metric_name="dataloader_dislikes_total",
diff --git a/src/dataloader/api/middleware.py b/src/dataloader/api/middleware.py
index f72358c..4ad1fe6 100644
--- a/src/dataloader/api/middleware.py
+++ b/src/dataloader/api/middleware.py
@@ -38,8 +38,14 @@ async def log_requests(request: Request, call_next) -> any:
     logger = APP_CTX.get_logger()
     request_path = request.url.path
 
-    allowed_headers_to_log = ((k, request.headers.get(k)) for k in HEADERS_WHITE_LIST_TO_LOG)
-    headers_to_log = {header_name: header_value for header_name, header_value in allowed_headers_to_log if header_value}
+    allowed_headers_to_log = (
+        (k, request.headers.get(k)) for k in HEADERS_WHITE_LIST_TO_LOG
+    )
+    headers_to_log = {
+        header_name: header_value
+        for header_name, header_value in allowed_headers_to_log
+        if header_value
+    }
 
     APP_CTX.get_context_vars_container().set_context_vars(
         request_id=headers_to_log.get("Request-Id", ""),
@@ -50,7 +56,9 @@ async def log_requests(request: Request, call_next) -> any:
 
     if request_path in NON_LOGGED_ENDPOINTS:
         response = await call_next(request)
-        logger.debug(f"Processed request for {request_path} with code {response.status_code}")
+        logger.debug(
+            f"Processed request for {request_path} with code {response.status_code}"
+        )
     elif headers_to_log.get("Request-Id", None):
         raw_request_body = await request.body()
         request_body_decoded = _get_decoded_body(raw_request_body, "request", logger)
@@ -80,7 +88,7 @@ async def log_requests(request: Request, call_next) -> any:
             event_params=json.dumps(
                 request_body_decoded,
                 ensure_ascii=False,
-            )
+            ),
         )
 
         response = await call_next(request)
@@ -88,12 +96,16 @@ async def log_requests(request: Request, call_next) -> any:
         response_body = [chunk async for chunk in response.body_iterator]
         response.body_iterator = iterate_in_threadpool(iter(response_body))
 
-        headers_to_log["Response-Time"] = datetime.now(APP_CTX.get_pytz_timezone()).isoformat()
+        headers_to_log["Response-Time"] = datetime.now(
+            APP_CTX.get_pytz_timezone()
+        ).isoformat()
         for header in headers_to_log:
             response.headers[header] = headers_to_log[header]
 
         response_body_extracted = response_body[0] if len(response_body) > 0 else b""
-        decoded_response_body = _get_decoded_body(response_body_extracted, "response", logger)
+        decoded_response_body = _get_decoded_body(
+            response_body_extracted, "response", logger
+        )
 
         logger.info(
             "Outgoing response to client system",
@@ -115,11 +127,13 @@ async def log_requests(request: Request, call_next) -> any:
             event_params=json.dumps(
                 decoded_response_body,
                 ensure_ascii=False,
-            )
+            ),
         )
 
         processing_time_ms = int(round((time.time() - start_time), 3) * 1000)
-        logger.info(f"Request processing time for {request_path}: {processing_time_ms} ms")
+        logger.info(
+            f"Request processing time for {request_path}: {processing_time_ms} ms"
+        )
         logger.metric(
             metric_name="dataloader_process_duration_ms",
             metric_value=processing_time_ms,
@@ -138,7 +152,9 @@ async def log_requests(request: Request, call_next) -> any:
     else:
         logger.info(f"Incoming {request.method}-request with no id for {request_path}")
         response = await call_next(request)
-        logger.info(f"Request with no id for {request_path} processing time: {time.time() - start_time:.3f} s")
+        logger.info(
+            f"Request with no id for {request_path} processing time: {time.time() - start_time:.3f} s"
+        )
 
     return response
 
diff --git a/src/dataloader/api/os_router.py b/src/dataloader/api/os_router.py
index 1dc9210..96b1e2f 100644
--- a/src/dataloader/api/os_router.py
+++ b/src/dataloader/api/os_router.py
@@ -1,6 +1,4 @@
-# Инфраструктурные endpoint'ы (/health, /status)
-""" 🚨 НЕ РЕДАКТИРОВАТЬ !!!!!!
-"""
+"""🚨 НЕ РЕДАКТИРОВАТЬ !!!!!!"""
 
 from importlib.metadata import distribution
 
diff --git a/src/dataloader/api/schemas.py b/src/dataloader/api/schemas.py
index 8ee2035..480bc45 100644
--- a/src/dataloader/api/schemas.py
+++ b/src/dataloader/api/schemas.py
@@ -3,22 +3,26 @@ from pydantic import BaseModel, ConfigDict, Field
 
 class HealthResponse(BaseModel):
     """Ответ для ручки /health"""
-    model_config = ConfigDict(
-        json_schema_extra={"example": {"status": "running"}}
-    )
 
-    status: str = Field(default="running", description="Service health check", max_length=7)
+    model_config = ConfigDict(json_schema_extra={"example": {"status": "running"}})
+
+    status: str = Field(
+        default="running", description="Service health check", max_length=7
+    )
 
 
 class InfoResponse(BaseModel):
     """Ответ для ручки /info"""
+
     model_config = ConfigDict(
         json_schema_extra={
             "example": {
                 "name": "rest-template",
-                "description": "Python 'AI gateway' template for developing REST microservices",
+                "description": (
+                    "Python 'AI gateway' template for developing REST microservices"
+                ),
                 "type": "REST API",
-                "version": "0.1.0"
+                "version": "0.1.0",
             }
         }
     )
@@ -26,11 +30,14 @@ class InfoResponse(BaseModel):
     name: str = Field(description="Service name", max_length=50)
     description: str = Field(description="Service description", max_length=200)
     type: str = Field(default="REST API", description="Service type", max_length=20)
-    version: str = Field(description="Service version", max_length=20, pattern=r"^\d+\.\d+\.\d+")
+    version: str = Field(
+        description="Service version", max_length=20, pattern=r"^\d+\.\d+\.\d+"
+    )
 
 
 class RateResponse(BaseModel):
     """Ответ для записи рейтинга"""
+
     model_config = ConfigDict(str_strip_whitespace=True)
 
     rating_result: str = Field(description="Rating that was recorded", max_length=50)
diff --git a/src/dataloader/api/v1/exceptions.py b/src/dataloader/api/v1/exceptions.py
index d2fd45b..743cb3b 100644
--- a/src/dataloader/api/v1/exceptions.py
+++ b/src/dataloader/api/v1/exceptions.py
@@ -5,12 +5,8 @@ from fastapi import HTTPException, status
 
 class JobNotFoundError(HTTPException):
     """Задача не найдена."""
-    
+
     def __init__(self, job_id: str):
         super().__init__(
-            status_code=status.HTTP_404_NOT_FOUND,
-            detail=f"Job {job_id} not found"
+            status_code=status.HTTP_404_NOT_FOUND, detail=f"Job {job_id} not found"
         )
-
-
-
diff --git a/src/dataloader/api/v1/models.py b/src/dataloader/api/v1/models.py
index d5c7bd5..4e3433f 100644
--- a/src/dataloader/api/v1/models.py
+++ b/src/dataloader/api/v1/models.py
@@ -1,2 +1 @@
 """Модели данных для API v1."""
-
diff --git a/src/dataloader/api/v1/router.py b/src/dataloader/api/v1/router.py
index 62f7faa..18a0ca7 100644
--- a/src/dataloader/api/v1/router.py
+++ b/src/dataloader/api/v1/router.py
@@ -1,12 +1,11 @@
-# src/dataloader/api/v1/router.py
 from __future__ import annotations
 
-from collections.abc import AsyncGenerator
 from http import HTTPStatus
 from typing import Annotated
 from uuid import UUID
 
 from fastapi import APIRouter, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
 
 from dataloader.api.v1.exceptions import JobNotFoundError
 from dataloader.api.v1.schemas import (
@@ -16,8 +15,6 @@ from dataloader.api.v1.schemas import (
 )
 from dataloader.api.v1.service import JobsService
 from dataloader.context import get_session
-from sqlalchemy.ext.asyncio import AsyncSession
-
 
 router = APIRouter(prefix="/jobs", tags=["jobs"])
 
@@ -40,7 +37,9 @@ async def trigger_job(
     return await svc.trigger(payload)
 
 
-@router.get("/{job_id}/status", response_model=JobStatusResponse, status_code=HTTPStatus.OK)
+@router.get(
+    "/{job_id}/status", response_model=JobStatusResponse, status_code=HTTPStatus.OK
+)
 async def get_status(
     job_id: UUID,
     svc: Annotated[JobsService, Depends(get_service)],
@@ -54,7 +53,9 @@ async def get_status(
     return st
 
 
-@router.post("/{job_id}/cancel", response_model=JobStatusResponse, status_code=HTTPStatus.OK)
+@router.post(
+    "/{job_id}/cancel", response_model=JobStatusResponse, status_code=HTTPStatus.OK
+)
 async def cancel_job(
     job_id: UUID,
     svc: Annotated[JobsService, Depends(get_service)],
diff --git a/src/dataloader/api/v1/schemas.py b/src/dataloader/api/v1/schemas.py
index bd52ccb..212bbea 100644
--- a/src/dataloader/api/v1/schemas.py
+++ b/src/dataloader/api/v1/schemas.py
@@ -1,4 +1,3 @@
-# src/dataloader/api/v1/schemas.py
 from __future__ import annotations
 
 from datetime import datetime, timezone
@@ -12,6 +11,7 @@ class TriggerJobRequest(BaseModel):
     """
     Запрос на постановку задачи в очередь.
     """
+
     model_config = ConfigDict(str_strip_whitespace=True)
 
     queue: str = Field(...)
@@ -39,6 +39,7 @@ class TriggerJobResponse(BaseModel):
     """
     Ответ на постановку задачи.
     """
+
     model_config = ConfigDict(str_strip_whitespace=True)
 
     job_id: UUID = Field(...)
@@ -49,6 +50,7 @@ class JobStatusResponse(BaseModel):
     """
     Текущий статус задачи.
     """
+
     model_config = ConfigDict(str_strip_whitespace=True)
 
     job_id: UUID = Field(...)
@@ -65,6 +67,7 @@ class CancelJobResponse(BaseModel):
     """
     Ответ на запрос отмены задачи.
     """
+
     model_config = ConfigDict(str_strip_whitespace=True)
 
     job_id: UUID = Field(...)
diff --git a/src/dataloader/api/v1/service.py b/src/dataloader/api/v1/service.py
index 3151653..7469778 100644
--- a/src/dataloader/api/v1/service.py
+++ b/src/dataloader/api/v1/service.py
@@ -1,4 +1,3 @@
-# src/dataloader/api/v1/service.py
 from __future__ import annotations
 
 from datetime import datetime, timezone
@@ -13,15 +12,16 @@ from dataloader.api.v1.schemas import (
     TriggerJobResponse,
 )
 from dataloader.api.v1.utils import new_job_id
-from dataloader.storage.schemas import CreateJobRequest
-from dataloader.storage.repositories import QueueRepository
 from dataloader.logger.logger import get_logger
+from dataloader.storage.repositories import QueueRepository
+from dataloader.storage.schemas import CreateJobRequest
 
 
 class JobsService:
     """
     Бизнес-логика работы с очередью задач.
     """
+
     def __init__(self, session: AsyncSession):
         self._s = session
         self._repo = QueueRepository(self._s)
diff --git a/src/dataloader/api/v1/utils.py b/src/dataloader/api/v1/utils.py
index 8c6731d..ed8a09e 100644
--- a/src/dataloader/api/v1/utils.py
+++ b/src/dataloader/api/v1/utils.py
@@ -1,4 +1,3 @@
-# src/dataloader/api/v1/utils.py
 from __future__ import annotations
 
 from uuid import UUID, uuid4
diff --git a/src/dataloader/config.py b/src/dataloader/config.py
index ffbd674..8831cd9 100644
--- a/src/dataloader/config.py
+++ b/src/dataloader/config.py
@@ -1,6 +1,5 @@
-# src/dataloader/config.py
-import os
 import json
+import os
 from logging import DEBUG, INFO
 from typing import Annotated, Any
 
@@ -32,6 +31,7 @@ class BaseAppSettings(BaseSettings):
     """
     Базовый класс для настроек.
     """
+
     local: bool = Field(validation_alias="LOCAL", default=False)
     debug: bool = Field(validation_alias="DEBUG", default=False)
 
@@ -44,6 +44,7 @@ class AppSettings(BaseAppSettings):
     """
     Настройки приложения.
     """
+
     app_host: str = Field(validation_alias="APP_HOST", default="0.0.0.0")
     app_port: int = Field(validation_alias="APP_PORT", default=8081)
     kube_net_name: str = Field(validation_alias="PROJECT_NAME", default="AIGATEWAY")
@@ -54,15 +55,28 @@ class LogSettings(BaseAppSettings):
     """
     Настройки логирования.
     """
+
     private_log_file_path: str = Field(validation_alias="LOG_PATH", default=os.getcwd())
-    private_log_file_name: str = Field(validation_alias="LOG_FILE_NAME", default="app.log")
+    private_log_file_name: str = Field(
+        validation_alias="LOG_FILE_NAME", default="app.log"
+    )
     log_rotation: str = Field(validation_alias="LOG_ROTATION", default="10 MB")
-    private_metric_file_path: str = Field(validation_alias="METRIC_PATH", default=os.getcwd())
-    private_metric_file_name: str = Field(validation_alias="METRIC_FILE_NAME", default="app-metric.log")
-    private_audit_file_path: str = Field(validation_alias="AUDIT_LOG_PATH", default=os.getcwd())
-    private_audit_file_name: str = Field(validation_alias="AUDIT_LOG_FILE_NAME", default="events.log")
+    private_metric_file_path: str = Field(
+        validation_alias="METRIC_PATH", default=os.getcwd()
+    )
+    private_metric_file_name: str = Field(
+        validation_alias="METRIC_FILE_NAME", default="app-metric.log"
+    )
+    private_audit_file_path: str = Field(
+        validation_alias="AUDIT_LOG_PATH", default=os.getcwd()
+    )
+    private_audit_file_name: str = Field(
+        validation_alias="AUDIT_LOG_FILE_NAME", default="events.log"
+    )
     audit_host_ip: str = Field(validation_alias="HOST_IP", default="127.0.0.1")
-    audit_host_uid: str = Field(validation_alias="HOST_UID", default="63b6dcee-170b-49bf-a65c-3ec967398ccd")
+    audit_host_uid: str = Field(
+        validation_alias="HOST_UID", default="63b6dcee-170b-49bf-a65c-3ec967398ccd"
+    )
 
     @staticmethod
     def get_file_abs_path(path_name: str, file_name: str) -> str:
@@ -70,15 +84,21 @@ class LogSettings(BaseAppSettings):
 
     @property
     def log_file_abs_path(self) -> str:
-        return self.get_file_abs_path(self.private_log_file_path, self.private_log_file_name)
+        return self.get_file_abs_path(
+            self.private_log_file_path, self.private_log_file_name
+        )
 
     @property
     def metric_file_abs_path(self) -> str:
-        return self.get_file_abs_path(self.private_metric_file_path, self.private_metric_file_name)
+        return self.get_file_abs_path(
+            self.private_metric_file_path, self.private_metric_file_name
+        )
 
     @property
     def audit_file_abs_path(self) -> str:
-        return self.get_file_abs_path(self.private_audit_file_path, self.private_audit_file_name)
+        return self.get_file_abs_path(
+            self.private_audit_file_path, self.private_audit_file_name
+        )
 
     @property
     def log_lvl(self) -> int:
@@ -89,6 +109,7 @@ class PGSettings(BaseSettings):
     """
     Настройки подключения к Postgres.
     """
+
     host: str = Field(validation_alias="PG_HOST", default="localhost")
     port: int = Field(validation_alias="PG_PORT", default=5432)
     user: str = Field(validation_alias="PG_USER", default="postgres")
@@ -116,9 +137,12 @@ class WorkerSettings(BaseSettings):
     """
     Настройки очереди и воркеров.
     """
+
     workers_json: str = Field(validation_alias="WORKERS_JSON", default="[]")
     heartbeat_sec: int = Field(validation_alias="DL_HEARTBEAT_SEC", default=10)
-    default_lease_ttl_sec: int = Field(validation_alias="DL_DEFAULT_LEASE_TTL_SEC", default=60)
+    default_lease_ttl_sec: int = Field(
+        validation_alias="DL_DEFAULT_LEASE_TTL_SEC", default=60
+    )
     reaper_period_sec: int = Field(validation_alias="DL_REAPER_PERIOD_SEC", default=10)
     claim_backoff_sec: int = Field(validation_alias="DL_CLAIM_BACKOFF_SEC", default=15)
 
@@ -137,6 +161,7 @@ class CertsSettings(BaseSettings):
     """
     Настройки SSL сертификатов для локальной разработки.
     """
+
     ca_bundle_file: str = Field(validation_alias="CA_BUNDLE_FILE", default="")
     cert_file: str = Field(validation_alias="CERT_FILE", default="")
     key_file: str = Field(validation_alias="KEY_FILE", default="")
@@ -146,21 +171,24 @@ class SuperTeneraSettings(BaseAppSettings):
     """
     Настройки интеграции с SuperTenera.
     """
+
     host: Annotated[str, BeforeValidator(strip_slashes)] = Field(
         validation_alias="SUPERTENERA_HOST",
-        default="ci03801737-ift-tenera-giga.delta.sbrf.ru/atlant360bc/"
+        default="ci03801737-ift-tenera-giga.delta.sbrf.ru/atlant360bc/",
     )
     port: str = Field(validation_alias="SUPERTENERA_PORT", default="443")
     quotes_endpoint: Annotated[str, BeforeValidator(strip_slashes)] = Field(
         validation_alias="SUPERTENERA_QUOTES_ENDPOINT",
-        default="/get_gigaparser_quotes/"
+        default="/get_gigaparser_quotes/",
     )
     timeout: int = Field(validation_alias="SUPERTENERA_TIMEOUT", default=20)
 
     @property
     def base_url(self) -> str:
         """Возвращает абсолютный URL для SuperTenera."""
-        domain, raw_path = self.host.split("/", 1) if "/" in self.host else (self.host, "")
+        domain, raw_path = (
+            self.host.split("/", 1) if "/" in self.host else (self.host, "")
+        )
         return build_url(self.protocol, domain, self.port, raw_path)
 
 
@@ -168,22 +196,21 @@ class Gmap2BriefSettings(BaseAppSettings):
     """
     Настройки интеграции с Gmap2Brief (OPU API).
     """
+
     host: Annotated[str, BeforeValidator(strip_slashes)] = Field(
         validation_alias="GMAP2BRIEF_HOST",
-        default="ci02533826-tib-brief.apps.ift-terra000024-edm.ocp.delta.sbrf.ru"
+        default="ci02533826-tib-brief.apps.ift-terra000024-edm.ocp.delta.sbrf.ru",
     )
     port: str = Field(validation_alias="GMAP2BRIEF_PORT", default="443")
     start_endpoint: Annotated[str, BeforeValidator(strip_slashes)] = Field(
-        validation_alias="GMAP2BRIEF_START_ENDPOINT",
-        default="/export/opu/start"
+        validation_alias="GMAP2BRIEF_START_ENDPOINT", default="/export/opu/start"
     )
     status_endpoint: Annotated[str, BeforeValidator(strip_slashes)] = Field(
-        validation_alias="GMAP2BRIEF_STATUS_ENDPOINT",
-        default="/export/{job_id}/status"
+        validation_alias="GMAP2BRIEF_STATUS_ENDPOINT", default="/export/{job_id}/status"
     )
     download_endpoint: Annotated[str, BeforeValidator(strip_slashes)] = Field(
         validation_alias="GMAP2BRIEF_DOWNLOAD_ENDPOINT",
-        default="/export/{job_id}/download"
+        default="/export/{job_id}/download",
     )
     poll_interval: int = Field(validation_alias="GMAP2BRIEF_POLL_INTERVAL", default=2)
     timeout: int = Field(validation_alias="GMAP2BRIEF_TIMEOUT", default=3600)
@@ -198,6 +225,7 @@ class Secrets:
     """
     Агрегатор настроек приложения.
     """
+
     app: AppSettings = AppSettings()
     log: LogSettings = LogSettings()
     pg: PGSettings = PGSettings()
diff --git a/src/dataloader/context.py b/src/dataloader/context.py
index 328767c..e0da114 100644
--- a/src/dataloader/context.py
+++ b/src/dataloader/context.py
@@ -1,8 +1,7 @@
-# src/dataloader/context.py
 from __future__ import annotations
 
-from typing import AsyncGenerator
 from logging import Logger
+from typing import AsyncGenerator
 from zoneinfo import ZoneInfo
 
 from sqlalchemy.ext.asyncio import AsyncEngine, AsyncSession, async_sessionmaker
@@ -15,6 +14,7 @@ class AppContext:
     """
     Контекст приложения, хранящий глобальные зависимости (Singleton pattern).
     """
+
     def __init__(self) -> None:
         self._engine: AsyncEngine | None = None
         self._sessionmaker: async_sessionmaker[AsyncSession] | None = None
@@ -75,6 +75,7 @@ class AppContext:
             Экземпляр Logger
         """
         from .logger.logger import get_logger as get_app_logger
+
         return get_app_logger(name)
 
     def get_context_vars_container(self) -> ContextVarsContainer:
diff --git a/src/dataloader/exceptions.py b/src/dataloader/exceptions.py
index d259d99..8d8e0d2 100644
--- a/src/dataloader/exceptions.py
+++ b/src/dataloader/exceptions.py
@@ -1,2 +1 @@
 """Исключения уровня приложения."""
-
diff --git a/src/dataloader/interfaces/gmap2_brief/interface.py b/src/dataloader/interfaces/gmap2_brief/interface.py
index d949931..c15db93 100644
--- a/src/dataloader/interfaces/gmap2_brief/interface.py
+++ b/src/dataloader/interfaces/gmap2_brief/interface.py
@@ -10,7 +10,10 @@ from typing import TYPE_CHECKING
 import httpx
 
 from dataloader.config import APP_CONFIG
-from dataloader.interfaces.gmap2_brief.schemas import ExportJobStatus, StartExportResponse
+from dataloader.interfaces.gmap2_brief.schemas import (
+    ExportJobStatus,
+    StartExportResponse,
+)
 
 if TYPE_CHECKING:
     from logging import Logger
@@ -37,10 +40,11 @@ class Gmap2BriefInterface:
 
         self._ssl_context = None
         if APP_CONFIG.app.local and APP_CONFIG.certs.cert_file:
-            self._ssl_context = ssl.create_default_context(cafile=APP_CONFIG.certs.ca_bundle_file)
+            self._ssl_context = ssl.create_default_context(
+                cafile=APP_CONFIG.certs.ca_bundle_file
+            )
             self._ssl_context.load_cert_chain(
-                certfile=APP_CONFIG.certs.cert_file,
-                keyfile=APP_CONFIG.certs.key_file
+                certfile=APP_CONFIG.certs.cert_file, keyfile=APP_CONFIG.certs.key_file
             )
 
     async def start_export(self) -> str:
@@ -56,9 +60,13 @@ class Gmap2BriefInterface:
         url = self.base_url + APP_CONFIG.gmap2brief.start_endpoint
 
         async with httpx.AsyncClient(
-            cert=(APP_CONFIG.certs.cert_file, APP_CONFIG.certs.key_file) if APP_CONFIG.app.local else None,
+            cert=(
+                (APP_CONFIG.certs.cert_file, APP_CONFIG.certs.key_file)
+                if APP_CONFIG.app.local
+                else None
+            ),
             verify=APP_CONFIG.certs.ca_bundle_file if APP_CONFIG.app.local else True,
-            timeout=self.timeout
+            timeout=self.timeout,
         ) as client:
             try:
                 self.logger.info(f"Starting OPU export: POST {url}")
@@ -87,12 +95,18 @@ class Gmap2BriefInterface:
         Raises:
             Gmap2BriefConnectionError: При ошибке запроса
         """
-        url = self.base_url + APP_CONFIG.gmap2brief.status_endpoint.format(job_id=job_id)
+        url = self.base_url + APP_CONFIG.gmap2brief.status_endpoint.format(
+            job_id=job_id
+        )
 
         async with httpx.AsyncClient(
-            cert=(APP_CONFIG.certs.cert_file, APP_CONFIG.certs.key_file) if APP_CONFIG.app.local else None,
+            cert=(
+                (APP_CONFIG.certs.cert_file, APP_CONFIG.certs.key_file)
+                if APP_CONFIG.app.local
+                else None
+            ),
             verify=APP_CONFIG.certs.ca_bundle_file if APP_CONFIG.app.local else True,
-            timeout=self.timeout
+            timeout=self.timeout,
         ) as client:
             try:
                 response = await client.get(url)
@@ -106,7 +120,9 @@ class Gmap2BriefInterface:
             except httpx.RequestError as e:
                 raise Gmap2BriefConnectionError(f"Request error: {e}") from e
 
-    async def wait_for_completion(self, job_id: str, max_wait: int | None = None) -> ExportJobStatus:
+    async def wait_for_completion(
+        self, job_id: str, max_wait: int | None = None
+    ) -> ExportJobStatus:
         """
         Ждет завершения задачи экспорта с периодическим polling.
 
@@ -127,14 +143,18 @@ class Gmap2BriefInterface:
             status = await self.get_status(job_id)
 
             if status.status == "completed":
-                self.logger.info(f"Job {job_id} completed, total_rows={status.total_rows}")
+                self.logger.info(
+                    f"Job {job_id} completed, total_rows={status.total_rows}"
+                )
                 return status
             elif status.status == "failed":
                 raise Gmap2BriefConnectionError(f"Job {job_id} failed: {status.error}")
 
             elapsed = asyncio.get_event_loop().time() - start_time
             if max_wait and elapsed > max_wait:
-                raise Gmap2BriefConnectionError(f"Job {job_id} timeout after {elapsed:.1f}s")
+                raise Gmap2BriefConnectionError(
+                    f"Job {job_id} timeout after {elapsed:.1f}s"
+                )
 
             self.logger.debug(
                 f"Job {job_id} status={status.status}, rows={status.total_rows}, elapsed={elapsed:.1f}s"
@@ -155,12 +175,18 @@ class Gmap2BriefInterface:
         Raises:
             Gmap2BriefConnectionError: При ошибке скачивания
         """
-        url = self.base_url + APP_CONFIG.gmap2brief.download_endpoint.format(job_id=job_id)
+        url = self.base_url + APP_CONFIG.gmap2brief.download_endpoint.format(
+            job_id=job_id
+        )
 
         async with httpx.AsyncClient(
-            cert=(APP_CONFIG.certs.cert_file, APP_CONFIG.certs.key_file) if APP_CONFIG.app.local else None,
+            cert=(
+                (APP_CONFIG.certs.cert_file, APP_CONFIG.certs.key_file)
+                if APP_CONFIG.app.local
+                else None
+            ),
             verify=APP_CONFIG.certs.ca_bundle_file if APP_CONFIG.app.local else True,
-            timeout=self.timeout
+            timeout=self.timeout,
         ) as client:
             try:
                 self.logger.info(f"Downloading export: GET {url}")
diff --git a/src/dataloader/interfaces/gmap2_brief/schemas.py b/src/dataloader/interfaces/gmap2_brief/schemas.py
index bb33281..b5a63c4 100644
--- a/src/dataloader/interfaces/gmap2_brief/schemas.py
+++ b/src/dataloader/interfaces/gmap2_brief/schemas.py
@@ -17,7 +17,11 @@ class ExportJobStatus(BaseModel):
     """Статус задачи экспорта."""
 
     job_id: str = Field(..., description="Идентификатор задачи")
-    status: Literal["pending", "running", "completed", "failed"] = Field(..., description="Статус задачи")
+    status: Literal["pending", "running", "completed", "failed"] = Field(
+        ..., description="Статус задачи"
+    )
     total_rows: int = Field(default=0, description="Количество обработанных строк")
     error: str | None = Field(default=None, description="Текст ошибки (если есть)")
-    temp_file_path: str | None = Field(default=None, description="Путь к временному файлу (для completed)")
+    temp_file_path: str | None = Field(
+        default=None, description="Путь к временному файлу (для completed)"
+    )
diff --git a/src/dataloader/interfaces/tenera/interface.py b/src/dataloader/interfaces/tenera/interface.py
index 4eb42d7..6899395 100644
--- a/src/dataloader/interfaces/tenera/interface.py
+++ b/src/dataloader/interfaces/tenera/interface.py
@@ -47,8 +47,12 @@ class SuperTeneraInterface:
 
         self._ssl_context = None
         if APP_CONFIG.app.local:
-            self._ssl_context = ssl.create_default_context(cafile=APP_CONFIG.certs.ca_bundle_file)
-            self._ssl_context.load_cert_chain(certfile=APP_CONFIG.certs.cert_file, keyfile=APP_CONFIG.certs.key_file)
+            self._ssl_context = ssl.create_default_context(
+                cafile=APP_CONFIG.certs.ca_bundle_file
+            )
+            self._ssl_context.load_cert_chain(
+                certfile=APP_CONFIG.certs.cert_file, keyfile=APP_CONFIG.certs.key_file
+            )
 
     def form_base_headers(self) -> dict:
         """Формирует базовые заголовки для запроса."""
@@ -57,7 +61,11 @@ class SuperTeneraInterface:
             "request-time": str(datetime.now(tz=self.timezone).isoformat()),
             "system-id": APP_CONFIG.app.kube_net_name,
         }
-        return {metakey: metavalue for metakey, metavalue in metadata_pairs.items() if metavalue}
+        return {
+            metakey: metavalue
+            for metakey, metavalue in metadata_pairs.items()
+            if metavalue
+        }
 
     async def __aenter__(self) -> Self:
         """Async context manager enter."""
@@ -86,7 +94,9 @@ class SuperTeneraInterface:
 
         async with self._session.get(url, **kwargs) as response:
             if APP_CONFIG.app.debug:
-                self.logger.debug(f"Response: {(await response.text(errors='ignore'))[:100]}")
+                self.logger.debug(
+                    f"Response: {(await response.text(errors='ignore'))[:100]}"
+                )
             return await response.json(encoding=encoding, content_type=content_type)
 
     async def get_quotes_data(self) -> MainData:
@@ -103,7 +113,9 @@ class SuperTeneraInterface:
         kwargs["ssl"] = self._ssl_context
         try:
             async with self._session.get(
-                APP_CONFIG.supertenera.quotes_endpoint, timeout=APP_CONFIG.supertenera.timeout, **kwargs
+                APP_CONFIG.supertenera.quotes_endpoint,
+                timeout=APP_CONFIG.supertenera.timeout,
+                **kwargs,
             ) as resp:
                 resp.raise_for_status()
             return True
@@ -112,7 +124,9 @@ class SuperTeneraInterface:
                 f"Ошибка подключения к SuperTenera API при проверке системы - {e.status}."
             ) from e
         except TimeoutError as e:
-            raise SuperTeneraConnectionError("Ошибка Timeout подключения к SuperTenera API при проверке системы.") from e
+            raise SuperTeneraConnectionError(
+                "Ошибка Timeout подключения к SuperTenera API при проверке системы."
+            ) from e
 
 
 def get_async_tenera_interface() -> SuperTeneraInterface:
diff --git a/src/dataloader/interfaces/tenera/schemas.py b/src/dataloader/interfaces/tenera/schemas.py
index ea82c64..06cf6cb 100644
--- a/src/dataloader/interfaces/tenera/schemas.py
+++ b/src/dataloader/interfaces/tenera/schemas.py
@@ -77,7 +77,9 @@ class InvestingCandlestick(TeneraBaseModel):
     value: str = Field(alias="V")
 
 
-class InvestingTimePoint(RootModel[EmptyTimePoint | InvestingNumeric | InvestingCandlestick]):
+class InvestingTimePoint(
+    RootModel[EmptyTimePoint | InvestingNumeric | InvestingCandlestick]
+):
     """
     Union-модель точки времени для источника Investing.com.
 
@@ -340,5 +342,9 @@ class MainData(TeneraBaseModel):
         :return: Отфильтрованный объект
         """
         if isinstance(v, dict):
-            return {key: value for key, value in v.items() if value is not None and not str(key).isdigit()}
+            return {
+                key: value
+                for key, value in v.items()
+                if value is not None and not str(key).isdigit()
+            }
         return v
diff --git a/src/dataloader/logger/__init__.py b/src/dataloader/logger/__init__.py
index da2dbbf..059238a 100644
--- a/src/dataloader/logger/__init__.py
+++ b/src/dataloader/logger/__init__.py
@@ -1,4 +1,3 @@
-# src/dataloader/logger/__init__.py
-from .logger import setup_logging, get_logger
+from .logger import get_logger, setup_logging
 
 __all__ = ["setup_logging", "get_logger"]
diff --git a/src/dataloader/logger/context_vars.py b/src/dataloader/logger/context_vars.py
index 91d98da..cb97169 100644
--- a/src/dataloader/logger/context_vars.py
+++ b/src/dataloader/logger/context_vars.py
@@ -1,9 +1,7 @@
-# Управление контекстом запросов для логирования
 import uuid
 from contextvars import ContextVar
 from typing import Final
 
-
 REQUEST_ID_CTX_VAR: Final[ContextVar[str]] = ContextVar("request_id", default="")
 DEVICE_ID_CTX_VAR: Final[ContextVar[str]] = ContextVar("device_id", default="")
 SESSION_ID_CTX_VAR: Final[ContextVar[str]] = ContextVar("session_id", default="")
@@ -66,7 +64,13 @@ class ContextVarsContainer:
     def gw_session_id(self, value: str) -> None:
         GW_SESSION_ID_CTX_VAR.set(value)
 
-    def set_context_vars(self, request_id: str = "", request_time: str = "", system_id: str = "", gw_session_id: str = "") -> None:
+    def set_context_vars(
+        self,
+        request_id: str = "",
+        request_time: str = "",
+        system_id: str = "",
+        gw_session_id: str = "",
+    ) -> None:
         if request_id:
             self.set_request_id(request_id)
         if request_time:
diff --git a/src/dataloader/logger/logger.py b/src/dataloader/logger/logger.py
index 3c94ca7..fc7913e 100644
--- a/src/dataloader/logger/logger.py
+++ b/src/dataloader/logger/logger.py
@@ -1,17 +1,12 @@
-# src/dataloader/logger/logger.py
-import sys
-import typing
-from datetime import tzinfo
-from logging import Logger
 import logging
+import sys
+from logging import Logger
 
 from loguru import logger
 
-from .context_vars import ContextVarsContainer
 from dataloader.config import APP_CONFIG
 
 
-# Определяем фильтры для разных типов логов
 def metric_only_filter(record: dict) -> bool:
     return "metric" in record["extra"]
 
@@ -26,13 +21,12 @@ def regular_log_filter(record: dict) -> bool:
 
 class InterceptHandler(logging.Handler):
     def emit(self, record: logging.LogRecord) -> None:
-        # Get corresponding Loguru level if it exists
+
         try:
             level = logger.level(record.levelname).name
         except ValueError:
             level = record.levelno
 
-        # Find caller from where originated the logged message
         frame, depth = logging.currentframe(), 2
         while frame.f_code.co_filename == logging.__file__:
             frame = frame.f_back
diff --git a/src/dataloader/logger/models.py b/src/dataloader/logger/models.py
index 23d0453..8b13789 100644
--- a/src/dataloader/logger/models.py
+++ b/src/dataloader/logger/models.py
@@ -1 +1 @@
-# Модели логов, метрик, событий аудита
+
diff --git a/src/dataloader/logger/utils.py b/src/dataloader/logger/utils.py
index 3481061..8b13789 100644
--- a/src/dataloader/logger/utils.py
+++ b/src/dataloader/logger/utils.py
@@ -1 +1 @@
-# Функции + маскирование args
+
diff --git a/src/dataloader/logger/uvicorn_logging_config.py b/src/dataloader/logger/uvicorn_logging_config.py
index 3df67ab..d83017c 100644
--- a/src/dataloader/logger/uvicorn_logging_config.py
+++ b/src/dataloader/logger/uvicorn_logging_config.py
@@ -1,34 +1,28 @@
-# Конфигурация логирования uvicorn
 import logging
-import sys
-
 
 from loguru import logger
 
 
 class InterceptHandler(logging.Handler):
     def emit(self, record: logging.LogRecord) -> None:
-        # Get corresponding Loguru level if it exists
+
         try:
             level = logger.level(record.levelname).name
         except ValueError:
             level = record.levelno
 
-
-        # Find caller from where originated the logged message
         frame, depth = logging.currentframe(), 2
         while frame.f_code.co_filename == logging.__file__:
             frame = frame.f_back
             depth += 1
 
-
         logger.opt(depth=depth, exception=record.exc_info).log(
             level, record.getMessage()
         )
 
 
 def setup_uvicorn_logging() -> None:
-    # Set all uvicorn loggers to use InterceptHandler
+
     for logger_name in ["uvicorn", "uvicorn.error", "uvicorn.access"]:
         log = logging.getLogger(logger_name)
         log.handlers = [InterceptHandler()]
@@ -36,7 +30,6 @@ def setup_uvicorn_logging() -> None:
         log.propagate = False
 
 
-# uvicorn logging config
 LOGGING_CONFIG = {
     "version": 1,
     "disable_existing_loggers": False,
diff --git a/src/dataloader/storage/__init__.py b/src/dataloader/storage/__init__.py
index f23621f..2a09814 100644
--- a/src/dataloader/storage/__init__.py
+++ b/src/dataloader/storage/__init__.py
@@ -1,2 +1 @@
 """Модуль для работы с хранилищем данных."""
-
diff --git a/src/dataloader/storage/engine.py b/src/dataloader/storage/engine.py
index 7d376fc..4cee2ac 100644
--- a/src/dataloader/storage/engine.py
+++ b/src/dataloader/storage/engine.py
@@ -1,7 +1,11 @@
-# src/dataloader/storage/engine.py
 from __future__ import annotations
 
-from sqlalchemy.ext.asyncio import AsyncEngine, AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.ext.asyncio import (
+    AsyncEngine,
+    AsyncSession,
+    async_sessionmaker,
+    create_async_engine,
+)
 
 from dataloader.config import APP_CONFIG
 
diff --git a/src/dataloader/storage/models/__init__.py b/src/dataloader/storage/models/__init__.py
index 6e74dc2..400f713 100644
--- a/src/dataloader/storage/models/__init__.py
+++ b/src/dataloader/storage/models/__init__.py
@@ -1,8 +1,8 @@
-# src/dataloader/storage/models/__init__.py
 """
 ORM модели для работы с базой данных.
 Организованы по доменам для масштабируемости.
 """
+
 from __future__ import annotations
 
 from .base import Base
diff --git a/src/dataloader/storage/models/base.py b/src/dataloader/storage/models/base.py
index 1581e31..8ac10a9 100644
--- a/src/dataloader/storage/models/base.py
+++ b/src/dataloader/storage/models/base.py
@@ -1,4 +1,3 @@
-# src/dataloader/storage/models/base.py
 from __future__ import annotations
 
 from sqlalchemy.orm import DeclarativeBase
@@ -9,4 +8,5 @@ class Base(DeclarativeBase):
     Базовый класс для всех ORM моделей приложения.
     Используется SQLAlchemy 2.0+ declarative style.
     """
+
     pass
diff --git a/src/dataloader/storage/models/opu.py b/src/dataloader/storage/models/opu.py
index 3da8e96..96e732d 100644
--- a/src/dataloader/storage/models/opu.py
+++ b/src/dataloader/storage/models/opu.py
@@ -4,7 +4,7 @@ from __future__ import annotations
 
 from datetime import date, datetime
 
-from sqlalchemy import BigInteger, Date, Integer, Numeric, String, TIMESTAMP, text
+from sqlalchemy import TIMESTAMP, BigInteger, Date, Integer, Numeric, String, text
 from sqlalchemy.orm import Mapped, mapped_column
 
 from dataloader.storage.models.base import Base
@@ -16,29 +16,47 @@ class BriefDigitalCertificateOpu(Base):
     __tablename__ = "brief_digital_certificate_opu"
     __table_args__ = ({"schema": "opu"},)
 
-    object_id: Mapped[str] = mapped_column(String, primary_key=True, server_default=text("'-'"))
+    object_id: Mapped[str] = mapped_column(
+        String, primary_key=True, server_default=text("'-'")
+    )
     object_nm: Mapped[str | None] = mapped_column(String)
-    desk_nm: Mapped[str] = mapped_column(String, primary_key=True, server_default=text("'-'"))
-    actdate: Mapped[date] = mapped_column(Date, primary_key=True, server_default=text("CURRENT_DATE"))
-    layer_cd: Mapped[str] = mapped_column(String, primary_key=True, server_default=text("'-'"))
+    desk_nm: Mapped[str] = mapped_column(
+        String, primary_key=True, server_default=text("'-'")
+    )
+    actdate: Mapped[date] = mapped_column(
+        Date, primary_key=True, server_default=text("CURRENT_DATE")
+    )
+    layer_cd: Mapped[str] = mapped_column(
+        String, primary_key=True, server_default=text("'-'")
+    )
     layer_nm: Mapped[str | None] = mapped_column(String)
     opu_cd: Mapped[str] = mapped_column(String, primary_key=True)
     opu_nm_sh: Mapped[str | None] = mapped_column(String)
     opu_nm: Mapped[str | None] = mapped_column(String)
-    opu_lvl: Mapped[int] = mapped_column(Integer, primary_key=True, server_default=text("'-1'"))
-    opu_prnt_cd: Mapped[str] = mapped_column(String, primary_key=True, server_default=text("'-'"))
+    opu_lvl: Mapped[int] = mapped_column(
+        Integer, primary_key=True, server_default=text("'-1'")
+    )
+    opu_prnt_cd: Mapped[str] = mapped_column(
+        String, primary_key=True, server_default=text("'-'")
+    )
     opu_prnt_nm_sh: Mapped[str | None] = mapped_column(String)
     opu_prnt_nm: Mapped[str | None] = mapped_column(String)
     sum_amountrub_p_usd: Mapped[float | None] = mapped_column(Numeric)
-    wf_load_id: Mapped[int] = mapped_column(BigInteger, nullable=False, server_default=text("'-1'"))
+    wf_load_id: Mapped[int] = mapped_column(
+        BigInteger, nullable=False, server_default=text("'-1'")
+    )
     wf_load_dttm: Mapped[datetime] = mapped_column(
         TIMESTAMP(timezone=False),
         nullable=False,
         server_default=text("CURRENT_TIMESTAMP"),
     )
-    wf_row_id: Mapped[int] = mapped_column(BigInteger, nullable=False, server_default=text("'-1'"))
+    wf_row_id: Mapped[int] = mapped_column(
+        BigInteger, nullable=False, server_default=text("'-1'")
+    )
     object_tp: Mapped[str | None] = mapped_column(String)
-    object_unit: Mapped[str] = mapped_column(String, primary_key=True, server_default=text("'-'"))
+    object_unit: Mapped[str] = mapped_column(
+        String, primary_key=True, server_default=text("'-'")
+    )
     measure: Mapped[str | None] = mapped_column(String)
     product_nm: Mapped[str | None] = mapped_column(String)
     product_prnt_nm: Mapped[str | None] = mapped_column(String)
diff --git a/src/dataloader/storage/models/queue.py b/src/dataloader/storage/models/queue.py
index 8da17f9..3ec52ac 100644
--- a/src/dataloader/storage/models/queue.py
+++ b/src/dataloader/storage/models/queue.py
@@ -1,4 +1,3 @@
-# src/dataloader/storage/models/queue.py
 from __future__ import annotations
 
 from datetime import datetime
@@ -10,7 +9,6 @@ from sqlalchemy.orm import Mapped, mapped_column
 
 from .base import Base
 
-
 dl_status_enum = ENUM(
     "queued",
     "running",
@@ -29,6 +27,7 @@ class DLJob(Base):
     Модель таблицы очереди задач dl_jobs.
     Использует логическое имя схемы 'queue' для поддержки schema_translate_map.
     """
+
     __tablename__ = "dl_jobs"
     __table_args__ = {"schema": "queue"}
 
@@ -40,15 +39,23 @@ class DLJob(Base):
     lock_key: Mapped[str] = mapped_column(Text, nullable=False)
     partition_key: Mapped[str] = mapped_column(Text, default="", nullable=False)
     priority: Mapped[int] = mapped_column(nullable=False, default=100)
-    available_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
-    status: Mapped[str] = mapped_column(dl_status_enum, nullable=False, default="queued")
+    available_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False
+    )
+    status: Mapped[str] = mapped_column(
+        dl_status_enum, nullable=False, default="queued"
+    )
     attempt: Mapped[int] = mapped_column(nullable=False, default=0)
     max_attempts: Mapped[int] = mapped_column(nullable=False, default=5)
     lease_ttl_sec: Mapped[int] = mapped_column(nullable=False, default=60)
-    lease_expires_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True))
+    lease_expires_at: Mapped[Optional[datetime]] = mapped_column(
+        DateTime(timezone=True)
+    )
     heartbeat_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True))
     cancel_requested: Mapped[bool] = mapped_column(nullable=False, default=False)
-    progress: Mapped[dict[str, Any]] = mapped_column(JSONB, default=dict, nullable=False)
+    progress: Mapped[dict[str, Any]] = mapped_column(
+        JSONB, default=dict, nullable=False
+    )
     error: Mapped[Optional[str]] = mapped_column(Text)
     producer: Mapped[Optional[str]] = mapped_column(Text)
     consumer_group: Mapped[Optional[str]] = mapped_column(Text)
@@ -62,10 +69,13 @@ class DLJobEvent(Base):
     Модель таблицы журнала событий dl_job_events.
     Использует логическое имя схемы 'queue' для поддержки schema_translate_map.
     """
+
     __tablename__ = "dl_job_events"
     __table_args__ = {"schema": "queue"}
 
-    event_id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    event_id: Mapped[int] = mapped_column(
+        BigInteger, primary_key=True, autoincrement=True
+    )
     job_id: Mapped[str] = mapped_column(UUID(as_uuid=False), nullable=False)
     queue: Mapped[str] = mapped_column(Text, nullable=False)
     load_dttm: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
diff --git a/src/dataloader/storage/models/quote.py b/src/dataloader/storage/models/quote.py
index 9a0473c..93c4eaa 100644
--- a/src/dataloader/storage/models/quote.py
+++ b/src/dataloader/storage/models/quote.py
@@ -5,7 +5,15 @@ from __future__ import annotations
 from datetime import datetime
 from typing import TYPE_CHECKING
 
-from sqlalchemy import JSON, TIMESTAMP, BigInteger, ForeignKey, String, UniqueConstraint, func
+from sqlalchemy import (
+    JSON,
+    TIMESTAMP,
+    BigInteger,
+    ForeignKey,
+    String,
+    UniqueConstraint,
+    func,
+)
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from dataloader.storage.models.base import Base
@@ -30,7 +38,9 @@ class Quote(Base):
     srce: Mapped[str | None] = mapped_column(String)
     ticker: Mapped[str | None] = mapped_column(String)
     quote_sect_id: Mapped[int] = mapped_column(
-        ForeignKey("quotes.quotes_sect.quote_sect_id", ondelete="CASCADE", onupdate="CASCADE"),
+        ForeignKey(
+            "quotes.quotes_sect.quote_sect_id", ondelete="CASCADE", onupdate="CASCADE"
+        ),
         nullable=False,
     )
     last_update_dttm: Mapped[datetime | None] = mapped_column(TIMESTAMP(timezone=True))
diff --git a/src/dataloader/storage/models/quote_value.py b/src/dataloader/storage/models/quote_value.py
index eedd174..ed45151 100644
--- a/src/dataloader/storage/models/quote_value.py
+++ b/src/dataloader/storage/models/quote_value.py
@@ -5,7 +5,17 @@ from __future__ import annotations
 from datetime import datetime
 from typing import TYPE_CHECKING
 
-from sqlalchemy import TIMESTAMP, BigInteger, Boolean, DateTime, Float, ForeignKey, String, UniqueConstraint, func
+from sqlalchemy import (
+    TIMESTAMP,
+    BigInteger,
+    Boolean,
+    DateTime,
+    Float,
+    ForeignKey,
+    String,
+    UniqueConstraint,
+    func,
+)
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from dataloader.storage.models.base import Base
diff --git a/src/dataloader/storage/notify_listener.py b/src/dataloader/storage/notify_listener.py
index 248eec9..9e8a6ed 100644
--- a/src/dataloader/storage/notify_listener.py
+++ b/src/dataloader/storage/notify_listener.py
@@ -1,16 +1,23 @@
-# src/dataloader/storage/notify_listener.py
 from __future__ import annotations
 
 import asyncio
-import asyncpg
 from typing import Callable, Optional
 
+import asyncpg
+
 
 class PGNotifyListener:
     """
     Прослушиватель PostgreSQL NOTIFY для канала 'dl_jobs'.
     """
-    def __init__(self, dsn: str, queue: str, callback: Callable[[], None], stop_event: asyncio.Event):
+
+    def __init__(
+        self,
+        dsn: str,
+        queue: str,
+        callback: Callable[[], None],
+        stop_event: asyncio.Event,
+    ):
         self._dsn = dsn
         self._queue = queue
         self._callback = callback
diff --git a/src/dataloader/storage/repositories/__init__.py b/src/dataloader/storage/repositories/__init__.py
index 314bfb6..f5ef597 100644
--- a/src/dataloader/storage/repositories/__init__.py
+++ b/src/dataloader/storage/repositories/__init__.py
@@ -1,8 +1,8 @@
-# src/dataloader/storage/repositories/__init__.py
 """
 Репозитории для работы с базой данных.
 Организованы по доменам для масштабируемости.
 """
+
 from __future__ import annotations
 
 from .opu import OpuRepository
diff --git a/src/dataloader/storage/repositories/opu.py b/src/dataloader/storage/repositories/opu.py
index ec2dfd3..189a093 100644
--- a/src/dataloader/storage/repositories/opu.py
+++ b/src/dataloader/storage/repositories/opu.py
@@ -69,7 +69,6 @@ class OpuRepository:
         if not records:
             return 0
 
-        # Получаем колонки для обновления (все кроме PK и технических)
         update_columns = {
             c.name
             for c in BriefDigitalCertificateOpu.__table__.columns
diff --git a/src/dataloader/storage/repositories/queue.py b/src/dataloader/storage/repositories/queue.py
index 2b3e0da..4508ac9 100644
--- a/src/dataloader/storage/repositories/queue.py
+++ b/src/dataloader/storage/repositories/queue.py
@@ -1,4 +1,3 @@
-# src/dataloader/storage/repositories/queue.py
 from __future__ import annotations
 
 from datetime import datetime, timedelta, timezone
@@ -15,6 +14,7 @@ class QueueRepository:
     """
     Репозиторий для работы с очередью задач и журналом событий.
     """
+
     def __init__(self, session: AsyncSession):
         self.s = session
 
@@ -62,7 +62,9 @@ class QueueRepository:
                 finished_at=None,
             )
             self.s.add(row)
-            await self._append_event(req.job_id, req.queue, "queued", {"task": req.task})
+            await self._append_event(
+                req.job_id, req.queue, "queued", {"task": req.task}
+            )
         return req.job_id, "queued"
 
     async def get_status(self, job_id: str) -> Optional[JobStatus]:
@@ -118,7 +120,9 @@ class QueueRepository:
             await self._append_event(job_id, job.queue, "cancel_requested", None)
         return True
 
-    async def claim_one(self, queue: str, claim_backoff_sec: int) -> Optional[dict[str, Any]]:
+    async def claim_one(
+        self, queue: str, claim_backoff_sec: int
+    ) -> Optional[dict[str, Any]]:
         """
         Захватывает одну задачу из очереди с учётом блокировок и выставляет running.
 
@@ -150,15 +154,21 @@ class QueueRepository:
             job.started_at = job.started_at or datetime.now(timezone.utc)
             job.attempt = int(job.attempt) + 1
             job.heartbeat_at = datetime.now(timezone.utc)
-            job.lease_expires_at = datetime.now(timezone.utc) + timedelta(seconds=int(job.lease_ttl_sec))
+            job.lease_expires_at = datetime.now(timezone.utc) + timedelta(
+                seconds=int(job.lease_ttl_sec)
+            )
 
             ok = await self._try_advisory_lock(job.lock_key)
             if not ok:
                 job.status = "queued"
-                job.available_at = datetime.now(timezone.utc) + timedelta(seconds=claim_backoff_sec)
+                job.available_at = datetime.now(timezone.utc) + timedelta(
+                    seconds=claim_backoff_sec
+                )
                 return None
 
-            await self._append_event(job.job_id, job.queue, "picked", {"attempt": job.attempt})
+            await self._append_event(
+                job.job_id, job.queue, "picked", {"attempt": job.attempt}
+            )
 
             return {
                 "job_id": job.job_id,
@@ -192,10 +202,15 @@ class QueueRepository:
             q = (
                 update(DLJob)
                 .where(DLJob.job_id == job_id, DLJob.status == "running")
-                .values(heartbeat_at=now, lease_expires_at=now + timedelta(seconds=int(ttl_sec)))
+                .values(
+                    heartbeat_at=now,
+                    lease_expires_at=now + timedelta(seconds=int(ttl_sec)),
+                )
             )
             await self.s.execute(q)
-            await self._append_event(job_id, await self._resolve_queue(job_id), "heartbeat", {"ttl": ttl_sec})
+            await self._append_event(
+                job_id, await self._resolve_queue(job_id), "heartbeat", {"ttl": ttl_sec}
+            )
             return True, cancel_requested
 
     async def finish_ok(self, job_id: str) -> None:
@@ -215,7 +230,9 @@ class QueueRepository:
             await self._append_event(job_id, job.queue, "succeeded", None)
             await self._advisory_unlock(job.lock_key)
 
-    async def finish_fail_or_retry(self, job_id: str, err: str, is_canceled: bool = False) -> None:
+    async def finish_fail_or_retry(
+        self, job_id: str, err: str, is_canceled: bool = False
+    ) -> None:
         """
         Помечает задачу как failed, canceled или возвращает в очередь с задержкой.
 
@@ -239,16 +256,25 @@ class QueueRepository:
                 can_retry = int(job.attempt) < int(job.max_attempts)
                 if can_retry:
                     job.status = "queued"
-                    job.available_at = datetime.now(timezone.utc) + timedelta(seconds=30 * int(job.attempt))
+                    job.available_at = datetime.now(timezone.utc) + timedelta(
+                        seconds=30 * int(job.attempt)
+                    )
                     job.error = err
                     job.lease_expires_at = None
-                    await self._append_event(job_id, job.queue, "requeue", {"attempt": job.attempt, "error": err})
+                    await self._append_event(
+                        job_id,
+                        job.queue,
+                        "requeue",
+                        {"attempt": job.attempt, "error": err},
+                    )
                 else:
                     job.status = "failed"
                     job.error = err
                     job.finished_at = datetime.now(timezone.utc)
                     job.lease_expires_at = None
-                    await self._append_event(job_id, job.queue, "failed", {"error": err})
+                    await self._append_event(
+                        job_id, job.queue, "failed", {"error": err}
+                    )
             await self._advisory_unlock(job.lock_key)
 
     async def requeue_lost(self, now: Optional[datetime] = None) -> list[str]:
@@ -293,7 +319,11 @@ class QueueRepository:
         Возвращает:
             ORM модель DLJob или None
         """
-        r = await self.s.execute(select(DLJob).where(DLJob.job_id == job_id).with_for_update(skip_locked=True))
+        r = await self.s.execute(
+            select(DLJob)
+            .where(DLJob.job_id == job_id)
+            .with_for_update(skip_locked=True)
+        )
         return r.scalar_one_or_none()
 
     async def _resolve_queue(self, job_id: str) -> str:
@@ -310,7 +340,9 @@ class QueueRepository:
         v = r.scalar_one_or_none()
         return v or ""
 
-    async def _append_event(self, job_id: str, queue: str, kind: str, payload: Optional[dict[str, Any]]) -> None:
+    async def _append_event(
+        self, job_id: str, queue: str, kind: str, payload: Optional[dict[str, Any]]
+    ) -> None:
         """
         Добавляет запись в журнал событий.
 
@@ -339,7 +371,9 @@ class QueueRepository:
         Возвращает:
             True, если блокировка получена
         """
-        r = await self.s.execute(select(func.pg_try_advisory_lock(func.hashtext(lock_key))))
+        r = await self.s.execute(
+            select(func.pg_try_advisory_lock(func.hashtext(lock_key)))
+        )
         return bool(r.scalar())
 
     async def _advisory_unlock(self, lock_key: str) -> None:
diff --git a/src/dataloader/storage/repositories/quotes.py b/src/dataloader/storage/repositories/quotes.py
index 308ad42..c9a8599 100644
--- a/src/dataloader/storage/repositories/quotes.py
+++ b/src/dataloader/storage/repositories/quotes.py
@@ -39,7 +39,9 @@ class QuotesRepository:
         result = await self.s.execute(stmt)
         return result.scalar_one_or_none()
 
-    async def get_or_create_section(self, name: str, params: dict | None = None) -> QuoteSection:
+    async def get_or_create_section(
+        self, name: str, params: dict | None = None
+    ) -> QuoteSection:
         """
         Получить существующую секцию или создать новую.
 
diff --git a/src/dataloader/storage/schemas/__init__.py b/src/dataloader/storage/schemas/__init__.py
index c0d536d..0f0d421 100644
--- a/src/dataloader/storage/schemas/__init__.py
+++ b/src/dataloader/storage/schemas/__init__.py
@@ -1,8 +1,8 @@
-# src/dataloader/storage/schemas/__init__.py
 """
 DTO (Data Transfer Objects) для слоя хранилища.
 Организованы по доменам для масштабируемости.
 """
+
 from __future__ import annotations
 
 from .queue import CreateJobRequest, JobStatus
diff --git a/src/dataloader/storage/schemas/queue.py b/src/dataloader/storage/schemas/queue.py
index be07545..4758566 100644
--- a/src/dataloader/storage/schemas/queue.py
+++ b/src/dataloader/storage/schemas/queue.py
@@ -1,4 +1,3 @@
-# src/dataloader/storage/schemas/queue.py
 from __future__ import annotations
 
 from dataclasses import dataclass
@@ -11,6 +10,7 @@ class CreateJobRequest:
     """
     DTO для создания задачи в очереди.
     """
+
     job_id: str
     queue: str
     task: str
@@ -31,6 +31,7 @@ class JobStatus:
     """
     DTO для статуса задачи.
     """
+
     job_id: str
     status: str
     attempt: int
diff --git a/src/dataloader/workers/__init__.py b/src/dataloader/workers/__init__.py
index 20cd673..4aeed8a 100644
--- a/src/dataloader/workers/__init__.py
+++ b/src/dataloader/workers/__init__.py
@@ -1,2 +1 @@
 """Модуль воркеров для обработки задач."""
-
diff --git a/src/dataloader/workers/base.py b/src/dataloader/workers/base.py
index 3c809d6..d3b50f5 100644
--- a/src/dataloader/workers/base.py
+++ b/src/dataloader/workers/base.py
@@ -1,4 +1,3 @@
-# src/dataloader/workers/base.py
 from __future__ import annotations
 
 import asyncio
@@ -9,8 +8,8 @@ from typing import AsyncIterator, Callable, Optional
 
 from dataloader.config import APP_CONFIG
 from dataloader.context import APP_CTX
-from dataloader.storage.repositories import QueueRepository
 from dataloader.storage.notify_listener import PGNotifyListener
+from dataloader.storage.repositories import QueueRepository
 from dataloader.workers.pipelines.registry import resolve as resolve_pipeline
 
 
@@ -19,6 +18,7 @@ class WorkerConfig:
     """
     Конфигурация воркера.
     """
+
     queue: str
     heartbeat_sec: int
     claim_backoff_sec: int
@@ -28,6 +28,7 @@ class PGWorker:
     """
     Базовый асинхронный воркер очереди Postgres.
     """
+
     def __init__(self, cfg: WorkerConfig, stop_event: asyncio.Event) -> None:
         self._cfg = cfg
         self._stop = stop_event
@@ -46,14 +47,16 @@ class PGWorker:
             dsn=APP_CONFIG.pg.url,
             queue=self._cfg.queue,
             callback=lambda: self._notify_wakeup.set(),
-            stop_event=self._stop
+            stop_event=self._stop,
         )
         try:
             await self._listener.start()
         except Exception as e:
-            self._log.warning(f"Failed to start LISTEN/NOTIFY, falling back to polling: {e}")
+            self._log.warning(
+                f"Failed to start LISTEN/NOTIFY, falling back to polling: {e}"
+            )
             self._listener = None
-        
+
         try:
             while not self._stop.is_set():
                 claimed = await self._claim_and_execute_once()
@@ -69,24 +72,27 @@ class PGWorker:
         Ожидание появления задач через LISTEN/NOTIFY или с тайм-аутом.
         """
         if self._listener:
-            # Используем LISTEN/NOTIFY с fallback на таймаут
+
             done, pending = await asyncio.wait(
-                [asyncio.create_task(self._notify_wakeup.wait()), asyncio.create_task(self._stop.wait())],
+                [
+                    asyncio.create_task(self._notify_wakeup.wait()),
+                    asyncio.create_task(self._stop.wait()),
+                ],
                 return_when=asyncio.FIRST_COMPLETED,
-                timeout=timeout_sec
+                timeout=timeout_sec,
             )
-            # Отменяем оставшиеся задачи
+
             for task in pending:
                 task.cancel()
                 try:
                     await task
                 except asyncio.CancelledError:
                     pass
-            # Очищаем событие, если оно было установлено
+
             if self._notify_wakeup.is_set():
                 self._notify_wakeup.clear()
         else:
-            # Fallback на простой таймаут
+
             try:
                 await asyncio.wait_for(self._stop.wait(), timeout=timeout_sec)
             except asyncio.TimeoutError:
@@ -110,30 +116,42 @@ class PGWorker:
             args = row["args"]
 
             try:
-                canceled = await self._execute_with_heartbeat(job_id, ttl, self._pipeline(task, args))
+                canceled = await self._execute_with_heartbeat(
+                    job_id, ttl, self._pipeline(task, args)
+                )
                 if canceled:
-                    await repo.finish_fail_or_retry(job_id, "canceled by user", is_canceled=True)
+                    await repo.finish_fail_or_retry(
+                        job_id, "canceled by user", is_canceled=True
+                    )
                 else:
                     await repo.finish_ok(job_id)
                 return True
             except asyncio.CancelledError:
-                await repo.finish_fail_or_retry(job_id, "cancelled by shutdown", is_canceled=True)
+                await repo.finish_fail_or_retry(
+                    job_id, "cancelled by shutdown", is_canceled=True
+                )
                 raise
             except Exception as e:
                 await repo.finish_fail_or_retry(job_id, str(e))
                 return True
 
-    async def _execute_with_heartbeat(self, job_id: str, ttl: int, it: AsyncIterator[None]) -> bool:
+    async def _execute_with_heartbeat(
+        self, job_id: str, ttl: int, it: AsyncIterator[None]
+    ) -> bool:
         """
         Исполняет конвейер с поддержкой heartbeat.
         Возвращает True, если задача была отменена (cancel_requested).
         """
-        next_hb = datetime.now(timezone.utc) + timedelta(seconds=self._cfg.heartbeat_sec)
+        next_hb = datetime.now(timezone.utc) + timedelta(
+            seconds=self._cfg.heartbeat_sec
+        )
         async for _ in it:
             now = datetime.now(timezone.utc)
             if now >= next_hb:
                 async with self._sm() as s_hb:
-                    success, cancel_requested = await QueueRepository(s_hb).heartbeat(job_id, ttl)
+                    success, cancel_requested = await QueueRepository(s_hb).heartbeat(
+                        job_id, ttl
+                    )
                     if cancel_requested:
                         return True
                 next_hb = now + timedelta(seconds=self._cfg.heartbeat_sec)
diff --git a/src/dataloader/workers/manager.py b/src/dataloader/workers/manager.py
index 6d4e722..37bf61f 100644
--- a/src/dataloader/workers/manager.py
+++ b/src/dataloader/workers/manager.py
@@ -1,4 +1,3 @@
-# src/dataloader/workers/manager.py
 from __future__ import annotations
 
 import asyncio
@@ -16,6 +15,7 @@ class WorkerSpec:
     """
     Конфигурация набора воркеров для очереди.
     """
+
     queue: str
     concurrency: int
 
@@ -24,6 +24,7 @@ class WorkerManager:
     """
     Управляет жизненным циклом асинхронных воркеров.
     """
+
     def __init__(self, specs: list[WorkerSpec]) -> None:
         self._log = APP_CTX.get_logger()
         self._specs = specs
@@ -40,15 +41,22 @@ class WorkerManager:
 
         for spec in self._specs:
             for i in range(max(1, spec.concurrency)):
-                cfg = WorkerConfig(queue=spec.queue, heartbeat_sec=hb, claim_backoff_sec=backoff)
-                t = asyncio.create_task(PGWorker(cfg, self._stop).run(), name=f"worker:{spec.queue}:{i}")
+                cfg = WorkerConfig(
+                    queue=spec.queue, heartbeat_sec=hb, claim_backoff_sec=backoff
+                )
+                t = asyncio.create_task(
+                    PGWorker(cfg, self._stop).run(), name=f"worker:{spec.queue}:{i}"
+                )
                 self._tasks.append(t)
 
         self._reaper_task = asyncio.create_task(self._reaper_loop(), name="reaper")
 
         self._log.info(
             "worker_manager.started",
-            extra={"specs": [spec.__dict__ for spec in self._specs], "total_tasks": len(self._tasks)},
+            extra={
+                "specs": [spec.__dict__ for spec in self._specs],
+                "total_tasks": len(self._tasks),
+            },
         )
 
     async def stop(self) -> None:
diff --git a/src/dataloader/workers/pipelines/__init__.py b/src/dataloader/workers/pipelines/__init__.py
index 9dd033c..bc6ed0e 100644
--- a/src/dataloader/workers/pipelines/__init__.py
+++ b/src/dataloader/workers/pipelines/__init__.py
@@ -1,6 +1,5 @@
 """Модуль пайплайнов обработки задач."""
 
-# src/dataloader/workers/pipelines/__init__.py
 from __future__ import annotations
 
 import importlib
diff --git a/src/dataloader/workers/pipelines/load_opu.py b/src/dataloader/workers/pipelines/load_opu.py
index b4c5872..288512a 100644
--- a/src/dataloader/workers/pipelines/load_opu.py
+++ b/src/dataloader/workers/pipelines/load_opu.py
@@ -59,7 +59,6 @@ def _parse_jsonl_from_zst(file_path: Path, chunk_size: int = 10000):
                         APP_CTX.logger.warning(f"Failed to parse JSON line: {e}")
                         continue
 
-            # Process remaining buffer
             if buffer.strip():
                 try:
                     record = orjson.loads(buffer)
@@ -85,11 +84,9 @@ def _convert_record(raw: dict[str, Any]) -> dict[str, Any]:
     """
     result = raw.copy()
 
-    # Преобразуем actdate из ISO строки в date
     if "actdate" in result and isinstance(result["actdate"], str):
         result["actdate"] = datetime.fromisoformat(result["actdate"]).date()
 
-    # Преобразуем wf_load_dttm из ISO строки в datetime
     if "wf_load_dttm" in result and isinstance(result["wf_load_dttm"], str):
         result["wf_load_dttm"] = datetime.fromisoformat(result["wf_load_dttm"])
 
@@ -118,18 +115,15 @@ async def load_opu(args: dict) -> AsyncIterator[None]:
     logger = APP_CTX.logger
     logger.info("Starting OPU ETL pipeline")
 
-    # Шаг 1: Запуск экспорта
     interface = get_gmap2brief_interface()
     job_id = await interface.start_export()
     logger.info(f"OPU export job started: {job_id}")
     yield
 
-    # Шаг 2: Ожидание завершения
     status = await interface.wait_for_completion(job_id)
     logger.info(f"OPU export completed: {status.total_rows} rows")
     yield
 
-    # Шаг 3: Скачивание архива
     with tempfile.TemporaryDirectory() as temp_dir:
         temp_path = Path(temp_dir)
         archive_path = temp_path / f"opu_export_{job_id}.jsonl.zst"
@@ -138,7 +132,6 @@ async def load_opu(args: dict) -> AsyncIterator[None]:
         logger.info(f"OPU archive downloaded: {archive_path.stat().st_size:,} bytes")
         yield
 
-        # Шаг 4: Truncate таблицы
         async with APP_CTX.sessionmaker() as session:
             repo = OpuRepository(session)
             await repo.truncate()
@@ -146,7 +139,6 @@ async def load_opu(args: dict) -> AsyncIterator[None]:
             logger.info("OPU table truncated")
             yield
 
-            # Шаг 5: Загрузка данных стримингово
             total_inserted = 0
             batch_num = 0
 
@@ -154,17 +146,16 @@ async def load_opu(args: dict) -> AsyncIterator[None]:
             for batch in _parse_jsonl_from_zst(archive_path, chunk_size=5000):
                 batch_num += 1
 
-                # Конвертируем записи
                 converted = [_convert_record(rec) for rec in batch]
 
-                # Вставляем батч
                 inserted = await repo.bulk_insert(converted)
                 await session.commit()
 
                 total_inserted += inserted
-                logger.debug(f"Batch {batch_num}: inserted {inserted} rows (total: {total_inserted})")
+                logger.debug(
+                    f"Batch {batch_num}: inserted {inserted} rows (total: {total_inserted})"
+                )
 
-                # Heartbeat после каждого батча
                 yield
 
             logger.info(f"OPU ETL completed: {total_inserted} rows inserted")
diff --git a/src/dataloader/workers/pipelines/load_tenera.py b/src/dataloader/workers/pipelines/load_tenera.py
index 77df2cb..9340bdc 100644
--- a/src/dataloader/workers/pipelines/load_tenera.py
+++ b/src/dataloader/workers/pipelines/load_tenera.py
@@ -59,7 +59,9 @@ def _parse_ts_to_datetime(ts: str) -> datetime | None:
         return None
 
 
-def _build_value_row(source: str, dt: datetime, point: Any) -> dict[str, Any] | None:  # noqa: C901
+def _build_value_row(
+    source: str, dt: datetime, point: Any
+) -> dict[str, Any] | None:  # noqa: C901
     """Строит строку для `quotes_values` по источнику и типу точки."""
     if isinstance(point, int):
         return {"dt": dt, "key": point}
@@ -82,7 +84,10 @@ def _build_value_row(source: str, dt: datetime, point: Any) -> dict[str, Any] |
             if isinstance(deep_inner, InvestingCandlestick):
                 return {
                     "dt": dt,
-                    "price_o": _to_float(getattr(deep_inner, "open_", None) or getattr(deep_inner, "open", None)),
+                    "price_o": _to_float(
+                        getattr(deep_inner, "open_", None)
+                        or getattr(deep_inner, "open", None)
+                    ),
                     "price_h": _to_float(deep_inner.high),
                     "price_l": _to_float(deep_inner.low),
                     "price_c": _to_float(deep_inner.close),
@@ -92,12 +97,16 @@ def _build_value_row(source: str, dt: datetime, point: Any) -> dict[str, Any] |
         if isinstance(inner, TradingViewTimePoint | SgxTimePoint):
             return {
                 "dt": dt,
-                "price_o": _to_float(getattr(inner, "open_", None) or getattr(inner, "open", None)),
+                "price_o": _to_float(
+                    getattr(inner, "open_", None) or getattr(inner, "open", None)
+                ),
                 "price_h": _to_float(inner.high),
                 "price_l": _to_float(inner.low),
                 "price_c": _to_float(inner.close),
                 "volume": _to_float(
-                    getattr(inner, "volume", None) or getattr(inner, "interest", None) or getattr(inner, "value", None)
+                    getattr(inner, "volume", None)
+                    or getattr(inner, "interest", None)
+                    or getattr(inner, "value", None)
                 ),
             }
 
@@ -132,7 +141,9 @@ def _build_value_row(source: str, dt: datetime, point: Any) -> dict[str, Any] |
                     "dt": dt,
                     "value_last": _to_float(deep_inner.last),
                     "value_previous": _to_float(deep_inner.previous),
-                    "unit": str(deep_inner.unit) if deep_inner.unit is not None else None,
+                    "unit": (
+                        str(deep_inner.unit) if deep_inner.unit is not None else None
+                    ),
                 }
 
             if isinstance(deep_inner, TradingEconomicsStringPercent):
@@ -218,7 +229,14 @@ async def load_tenera(args: dict) -> AsyncIterator[None]:
     async with APP_CTX.sessionmaker() as session:
         repo = QuotesRepository(session)
 
-        for source_name in ("cbr", "investing", "sgx", "tradingeconomics", "bloomberg", "trading_view"):
+        for source_name in (
+            "cbr",
+            "investing",
+            "sgx",
+            "tradingeconomics",
+            "bloomberg",
+            "trading_view",
+        ):
             source_data = getattr(data, source_name)
             if not source_data:
                 continue
diff --git a/src/dataloader/workers/pipelines/noop.py b/src/dataloader/workers/pipelines/noop.py
index 4b20c00..4df8be9 100644
--- a/src/dataloader/workers/pipelines/noop.py
+++ b/src/dataloader/workers/pipelines/noop.py
@@ -1,4 +1,3 @@
-# src/dataloader/workers/pipelines/noop.py
 from __future__ import annotations
 
 import asyncio
diff --git a/src/dataloader/workers/pipelines/registry.py b/src/dataloader/workers/pipelines/registry.py
index e7e0fc5..a92b2e5 100644
--- a/src/dataloader/workers/pipelines/registry.py
+++ b/src/dataloader/workers/pipelines/registry.py
@@ -1,4 +1,3 @@
-# src/dataloader/workers/pipelines/registry.py
 from __future__ import annotations
 
 from typing import Any, Callable, Dict, Iterable
@@ -6,13 +5,17 @@ from typing import Any, Callable, Dict, Iterable
 _Registry: Dict[str, Callable[[dict[str, Any]], Any]] = {}
 
 
-def register(task: str) -> Callable[[Callable[[dict[str, Any]], Any]], Callable[[dict[str, Any]], Any]]:
+def register(
+    task: str,
+) -> Callable[[Callable[[dict[str, Any]], Any]], Callable[[dict[str, Any]], Any]]:
     """
     Регистрирует обработчик пайплайна под именем задачи.
     """
+
     def _wrap(fn: Callable[[dict[str, Any]], Any]) -> Callable[[dict[str, Any]], Any]:
         _Registry[task] = fn
         return fn
+
     return _wrap
 
 
@@ -22,8 +25,8 @@ def resolve(task: str) -> Callable[[dict[str, Any]], Any]:
     """
     try:
         return _Registry[task]
-    except KeyError:
-        raise KeyError(f"pipeline not found: {task}")
+    except KeyError as err:
+        raise KeyError(f"pipeline not found: {task}") from err
 
 
 def tasks() -> Iterable[str]:
diff --git a/src/dataloader/workers/reaper.py b/src/dataloader/workers/reaper.py
index 0b72ddd..ca9f670 100644
--- a/src/dataloader/workers/reaper.py
+++ b/src/dataloader/workers/reaper.py
@@ -1,7 +1,7 @@
-# src/dataloader/workers/reaper.py
 from __future__ import annotations
 
 from typing import Sequence
+
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from dataloader.storage.repositories import QueueRepository
diff --git a/tests/conftest.py b/tests/conftest.py
index 212645d..411ccd1 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,4 +1,3 @@
-# tests/conftest.py
 from __future__ import annotations
 
 import asyncio
@@ -9,23 +8,23 @@ from uuid import uuid4
 import pytest
 import pytest_asyncio
 from dotenv import load_dotenv
-from httpx import AsyncClient, ASGITransport
+from httpx import ASGITransport, AsyncClient
 from sqlalchemy import text
 from sqlalchemy.ext.asyncio import AsyncEngine, AsyncSession, async_sessionmaker
 
-load_dotenv()
-
 from dataloader.api import app_main
 from dataloader.config import APP_CONFIG
-from dataloader.context import APP_CTX, get_session
-from dataloader.storage.models import Base
-from dataloader.storage.engine import create_engine, create_sessionmaker
+from dataloader.context import get_session
+from dataloader.storage.engine import create_engine
+
+load_dotenv()
 
 if sys.platform == "win32":
     asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
 
 pytestmark = pytest.mark.asyncio
 
+
 @pytest_asyncio.fixture(scope="function")
 async def db_engine() -> AsyncGenerator[AsyncEngine, None]:
     """
@@ -39,15 +38,15 @@ async def db_engine() -> AsyncGenerator[AsyncEngine, None]:
     await engine.dispose()
 
 
-
-
 @pytest_asyncio.fixture(scope="function")
 async def db_session(db_engine: AsyncEngine) -> AsyncGenerator[AsyncSession, None]:
     """
     Предоставляет сессию БД для каждого теста.
     НЕ использует транзакцию, чтобы работали advisory locks.
     """
-    sessionmaker = async_sessionmaker(bind=db_engine, expire_on_commit=False, class_=AsyncSession)
+    sessionmaker = async_sessionmaker(
+        bind=db_engine, expire_on_commit=False, class_=AsyncSession
+    )
     async with sessionmaker() as session:
         yield session
         await session.rollback()
@@ -69,6 +68,7 @@ async def client(db_session: AsyncSession) -> AsyncGenerator[AsyncClient, None]:
     """
     HTTP клиент для тестирования API.
     """
+
     async def override_get_session() -> AsyncGenerator[AsyncSession, None]:
         yield db_session
 
diff --git a/tests/integration_tests/__init__.py b/tests/integration_tests/__init__.py
index d6c43f2..8b13789 100644
--- a/tests/integration_tests/__init__.py
+++ b/tests/integration_tests/__init__.py
@@ -1 +1 @@
-# tests/integration_tests/__init__.py
+
diff --git a/tests/integration_tests/test_api_endpoints.py b/tests/integration_tests/test_api_endpoints.py
index 216cccc..bfd1375 100644
--- a/tests/integration_tests/test_api_endpoints.py
+++ b/tests/integration_tests/test_api_endpoints.py
@@ -1,4 +1,3 @@
-# tests/integration_tests/test_api_endpoints.py
 from __future__ import annotations
 
 import pytest
diff --git a/tests/integration_tests/test_api_router_not_found.py b/tests/integration_tests/test_api_router_not_found.py
index ba96dec..a90375b 100644
--- a/tests/integration_tests/test_api_router_not_found.py
+++ b/tests/integration_tests/test_api_router_not_found.py
@@ -1,11 +1,11 @@
-# tests/unit/test_api_router_not_found.py
 from __future__ import annotations
 
-import pytest
-from uuid import uuid4, UUID
+from uuid import UUID, uuid4
+
+import pytest
 
-from dataloader.api.v1.router import get_status, cancel_job
 from dataloader.api.v1.exceptions import JobNotFoundError
+from dataloader.api.v1.router import cancel_job, get_status
 from dataloader.api.v1.schemas import JobStatusResponse
 
 
diff --git a/tests/integration_tests/test_api_router_success.py b/tests/integration_tests/test_api_router_success.py
index a19246a..fb18827 100644
--- a/tests/integration_tests/test_api_router_success.py
+++ b/tests/integration_tests/test_api_router_success.py
@@ -1,11 +1,11 @@
-# tests/unit/test_api_router_success.py
 from __future__ import annotations
 
-import pytest
-from uuid import uuid4, UUID
 from datetime import datetime, timezone
+from uuid import UUID, uuid4
 
-from dataloader.api.v1.router import get_status, cancel_job
+import pytest
+
+from dataloader.api.v1.router import cancel_job, get_status
 from dataloader.api.v1.schemas import JobStatusResponse
 
 
diff --git a/tests/integration_tests/test_queue_repository.py b/tests/integration_tests/test_queue_repository.py
index 028755d..ebda277 100644
--- a/tests/integration_tests/test_queue_repository.py
+++ b/tests/integration_tests/test_queue_repository.py
@@ -1,7 +1,6 @@
-# tests/integration_tests/test_queue_repository.py
 from __future__ import annotations
 
-from datetime import datetime, timezone, timedelta
+from datetime import datetime, timedelta, timezone
 from uuid import uuid4
 
 import pytest
@@ -10,7 +9,7 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from dataloader.storage.models import DLJob
 from dataloader.storage.repositories import QueueRepository
-from dataloader.storage.schemas import CreateJobRequest, JobStatus
+from dataloader.storage.schemas import CreateJobRequest
 
 
 @pytest.mark.integration
@@ -445,6 +444,7 @@ class TestQueueRepository:
         await repo.claim_one(queue_name, claim_backoff_sec=15)
 
         import asyncio
+
         await asyncio.sleep(2)
 
         requeued = await repo.requeue_lost()
@@ -500,7 +500,9 @@ class TestQueueRepository:
         assert st is not None
         assert st.status == "queued"
 
-        row = (await db_session.execute(select(DLJob).where(DLJob.job_id == job_id))).scalar_one()
+        row = (
+            await db_session.execute(select(DLJob).where(DLJob.job_id == job_id))
+        ).scalar_one()
         assert row.available_at >= before + timedelta(seconds=15)
         assert row.available_at <= after + timedelta(seconds=60)
 
@@ -569,7 +571,9 @@ class TestQueueRepository:
         await repo.create_or_get(req)
         await repo.claim_one(queue_name, claim_backoff_sec=5)
 
-        await repo.finish_fail_or_retry(job_id, err="Canceled by test", is_canceled=True)
+        await repo.finish_fail_or_retry(
+            job_id, err="Canceled by test", is_canceled=True
+        )
 
         st = await repo.get_status(job_id)
         assert st is not None
diff --git a/tests/unit/__init__.py b/tests/unit/__init__.py
index f28a885..8b13789 100644
--- a/tests/unit/__init__.py
+++ b/tests/unit/__init__.py
@@ -1 +1 @@
-# tests/unit/__init__.py
+
diff --git a/tests/unit/test_api_service.py b/tests/unit/test_api_service.py
index 31ae26a..e670915 100644
--- a/tests/unit/test_api_service.py
+++ b/tests/unit/test_api_service.py
@@ -1,13 +1,13 @@
-# tests/unit/test_api_service.py
 from __future__ import annotations
 
 from datetime import datetime, timezone
-from uuid import UUID
 from unittest.mock import AsyncMock, Mock, patch
+from uuid import UUID
+
 import pytest
 
-from dataloader.api.v1.service import JobsService
 from dataloader.api.v1.schemas import TriggerJobRequest
+from dataloader.api.v1.service import JobsService
 from dataloader.storage.schemas import JobStatus
 
 
@@ -38,15 +38,19 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls, \
-             patch("dataloader.api.v1.service.new_job_id") as mock_new_job_id:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+            patch("dataloader.api.v1.service.new_job_id") as mock_new_job_id,
+        ):
 
             mock_get_logger.return_value = Mock()
             mock_new_job_id.return_value = UUID("12345678-1234-5678-1234-567812345678")
 
             mock_repo = Mock()
-            mock_repo.create_or_get = AsyncMock(return_value=("12345678-1234-5678-1234-567812345678", "queued"))
+            mock_repo.create_or_get = AsyncMock(
+                return_value=("12345678-1234-5678-1234-567812345678", "queued")
+            )
             mock_repo_cls.return_value = mock_repo
 
             service = JobsService(mock_session)
@@ -58,7 +62,7 @@ class TestJobsService:
                 lock_key="lock_1",
                 priority=100,
                 max_attempts=5,
-                lease_ttl_sec=60
+                lease_ttl_sec=60,
             )
 
             response = await service.trigger(req)
@@ -74,15 +78,19 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls, \
-             patch("dataloader.api.v1.service.new_job_id") as mock_new_job_id:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+            patch("dataloader.api.v1.service.new_job_id") as mock_new_job_id,
+        ):
 
             mock_get_logger.return_value = Mock()
             mock_new_job_id.return_value = UUID("12345678-1234-5678-1234-567812345678")
 
             mock_repo = Mock()
-            mock_repo.create_or_get = AsyncMock(return_value=("12345678-1234-5678-1234-567812345678", "queued"))
+            mock_repo.create_or_get = AsyncMock(
+                return_value=("12345678-1234-5678-1234-567812345678", "queued")
+            )
             mock_repo_cls.return_value = mock_repo
 
             service = JobsService(mock_session)
@@ -95,7 +103,7 @@ class TestJobsService:
                 lock_key="lock_1",
                 priority=100,
                 max_attempts=5,
-                lease_ttl_sec=60
+                lease_ttl_sec=60,
             )
 
             response = await service.trigger(req)
@@ -112,15 +120,19 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls, \
-             patch("dataloader.api.v1.service.new_job_id") as mock_new_job_id:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+            patch("dataloader.api.v1.service.new_job_id") as mock_new_job_id,
+        ):
 
             mock_get_logger.return_value = Mock()
             mock_new_job_id.return_value = UUID("12345678-1234-5678-1234-567812345678")
 
             mock_repo = Mock()
-            mock_repo.create_or_get = AsyncMock(return_value=("12345678-1234-5678-1234-567812345678", "queued"))
+            mock_repo.create_or_get = AsyncMock(
+                return_value=("12345678-1234-5678-1234-567812345678", "queued")
+            )
             mock_repo_cls.return_value = mock_repo
 
             service = JobsService(mock_session)
@@ -135,10 +147,10 @@ class TestJobsService:
                 available_at=future_time,
                 priority=100,
                 max_attempts=5,
-                lease_ttl_sec=60
+                lease_ttl_sec=60,
             )
 
-            response = await service.trigger(req)
+            await service.trigger(req)
 
             call_args = mock_repo.create_or_get.call_args[0][0]
             assert call_args.available_at == future_time
@@ -150,15 +162,19 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls, \
-             patch("dataloader.api.v1.service.new_job_id") as mock_new_job_id:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+            patch("dataloader.api.v1.service.new_job_id") as mock_new_job_id,
+        ):
 
             mock_get_logger.return_value = Mock()
             mock_new_job_id.return_value = UUID("12345678-1234-5678-1234-567812345678")
 
             mock_repo = Mock()
-            mock_repo.create_or_get = AsyncMock(return_value=("12345678-1234-5678-1234-567812345678", "queued"))
+            mock_repo.create_or_get = AsyncMock(
+                return_value=("12345678-1234-5678-1234-567812345678", "queued")
+            )
             mock_repo_cls.return_value = mock_repo
 
             service = JobsService(mock_session)
@@ -173,10 +189,10 @@ class TestJobsService:
                 consumer_group="test_group",
                 priority=100,
                 max_attempts=5,
-                lease_ttl_sec=60
+                lease_ttl_sec=60,
             )
 
-            response = await service.trigger(req)
+            await service.trigger(req)
 
             call_args = mock_repo.create_or_get.call_args[0][0]
             assert call_args.partition_key == "partition_1"
@@ -190,8 +206,10 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_get_logger.return_value = Mock()
 
@@ -204,7 +222,7 @@ class TestJobsService:
                 finished_at=None,
                 heartbeat_at=datetime(2025, 1, 1, 12, 5, 0, tzinfo=timezone.utc),
                 error=None,
-                progress={"step": 1}
+                progress={"step": 1},
             )
             mock_repo.get_status = AsyncMock(return_value=mock_status)
             mock_repo_cls.return_value = mock_repo
@@ -227,8 +245,10 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_get_logger.return_value = Mock()
 
@@ -250,8 +270,10 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_get_logger.return_value = Mock()
 
@@ -265,7 +287,7 @@ class TestJobsService:
                 finished_at=None,
                 heartbeat_at=datetime(2025, 1, 1, 12, 5, 0, tzinfo=timezone.utc),
                 error=None,
-                progress={}
+                progress={},
             )
             mock_repo.get_status = AsyncMock(return_value=mock_status)
             mock_repo_cls.return_value = mock_repo
@@ -287,8 +309,10 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_get_logger.return_value = Mock()
 
@@ -312,8 +336,10 @@ class TestJobsService:
         """
         mock_session = AsyncMock()
 
-        with patch("dataloader.api.v1.service.get_logger") as mock_get_logger, \
-             patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.api.v1.service.get_logger") as mock_get_logger,
+            patch("dataloader.api.v1.service.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_get_logger.return_value = Mock()
 
@@ -326,7 +352,7 @@ class TestJobsService:
                 finished_at=None,
                 heartbeat_at=None,
                 error=None,
-                progress=None
+                progress=None,
             )
             mock_repo.get_status = AsyncMock(return_value=mock_status)
             mock_repo_cls.return_value = mock_repo
diff --git a/tests/unit/test_config.py b/tests/unit/test_config.py
index 0c82df8..57b2e6d 100644
--- a/tests/unit/test_config.py
+++ b/tests/unit/test_config.py
@@ -1,18 +1,18 @@
-# tests/unit/test_config.py
 from __future__ import annotations
 
 import json
 from logging import DEBUG, INFO
 from unittest.mock import patch
+
 import pytest
 
 from dataloader.config import (
-    BaseAppSettings,
     AppSettings,
+    BaseAppSettings,
     LogSettings,
     PGSettings,
-    WorkerSettings,
     Secrets,
+    WorkerSettings,
 )
 
 
@@ -81,12 +81,15 @@ class TestAppSettings:
         """
         Тест загрузки из переменных окружения.
         """
-        with patch.dict("os.environ", {
-            "APP_HOST": "127.0.0.1",
-            "APP_PORT": "9000",
-            "PROJECT_NAME": "TestProject",
-            "TIMEZONE": "UTC"
-        }):
+        with patch.dict(
+            "os.environ",
+            {
+                "APP_HOST": "127.0.0.1",
+                "APP_PORT": "9000",
+                "PROJECT_NAME": "TestProject",
+                "TIMEZONE": "UTC",
+            },
+        ):
             settings = AppSettings()
 
             assert settings.app_host == "127.0.0.1"
@@ -136,7 +139,9 @@ class TestLogSettings:
         """
         Тест свойства log_file_abs_path.
         """
-        with patch.dict("os.environ", {"LOG_PATH": "/var/log", "LOG_FILE_NAME": "test.log"}):
+        with patch.dict(
+            "os.environ", {"LOG_PATH": "/var/log", "LOG_FILE_NAME": "test.log"}
+        ):
             settings = LogSettings()
 
             assert "test.log" in settings.log_file_abs_path
@@ -146,7 +151,10 @@ class TestLogSettings:
         """
         Тест свойства metric_file_abs_path.
         """
-        with patch.dict("os.environ", {"METRIC_PATH": "/var/metrics", "METRIC_FILE_NAME": "metrics.log"}):
+        with patch.dict(
+            "os.environ",
+            {"METRIC_PATH": "/var/metrics", "METRIC_FILE_NAME": "metrics.log"},
+        ):
             settings = LogSettings()
 
             assert "metrics.log" in settings.metric_file_abs_path
@@ -156,7 +164,10 @@ class TestLogSettings:
         """
         Тест свойства audit_file_abs_path.
         """
-        with patch.dict("os.environ", {"AUDIT_LOG_PATH": "/var/audit", "AUDIT_LOG_FILE_NAME": "audit.log"}):
+        with patch.dict(
+            "os.environ",
+            {"AUDIT_LOG_PATH": "/var/audit", "AUDIT_LOG_FILE_NAME": "audit.log"},
+        ):
             settings = LogSettings()
 
             assert "audit.log" in settings.audit_file_abs_path
@@ -208,29 +219,37 @@ class TestPGSettings:
         """
         Тест формирования строки подключения.
         """
-        with patch.dict("os.environ", {
-            "PG_HOST": "db.example.com",
-            "PG_PORT": "5433",
-            "PG_USER": "testuser",
-            "PG_PASSWORD": "testpass",
-            "PG_DATABASE": "testdb"
-        }):
+        with patch.dict(
+            "os.environ",
+            {
+                "PG_HOST": "db.example.com",
+                "PG_PORT": "5433",
+                "PG_USER": "testuser",
+                "PG_PASSWORD": "testpass",
+                "PG_DATABASE": "testdb",
+            },
+        ):
             settings = PGSettings()
 
-            expected = "postgresql+asyncpg://testuser:testpass@db.example.com:5433/testdb"
+            expected = (
+                "postgresql+asyncpg://testuser:testpass@db.example.com:5433/testdb"
+            )
             assert settings.url == expected
 
     def test_url_property_with_empty_password(self):
         """
         Тест строки подключения с пустым паролем.
         """
-        with patch.dict("os.environ", {
-            "PG_HOST": "localhost",
-            "PG_PORT": "5432",
-            "PG_USER": "postgres",
-            "PG_PASSWORD": "",
-            "PG_DATABASE": "testdb"
-        }):
+        with patch.dict(
+            "os.environ",
+            {
+                "PG_HOST": "localhost",
+                "PG_PORT": "5432",
+                "PG_USER": "postgres",
+                "PG_PASSWORD": "",
+                "PG_DATABASE": "testdb",
+            },
+        ):
             settings = PGSettings()
 
             expected = "postgresql+asyncpg://postgres:@localhost:5432/testdb"
@@ -240,15 +259,18 @@ class TestPGSettings:
         """
         Тест загрузки из переменных окружения.
         """
-        with patch.dict("os.environ", {
-            "PG_HOST": "testhost",
-            "PG_PORT": "5433",
-            "PG_USER": "testuser",
-            "PG_PASSWORD": "testpass",
-            "PG_DATABASE": "testdb",
-            "PG_SCHEMA_QUEUE": "queue_schema",
-            "PG_POOL_SIZE": "20"
-        }):
+        with patch.dict(
+            "os.environ",
+            {
+                "PG_HOST": "testhost",
+                "PG_PORT": "5433",
+                "PG_USER": "testuser",
+                "PG_PASSWORD": "testpass",
+                "PG_DATABASE": "testdb",
+                "PG_SCHEMA_QUEUE": "queue_schema",
+                "PG_POOL_SIZE": "20",
+            },
+        ):
             settings = PGSettings()
 
             assert settings.host == "testhost"
@@ -292,10 +314,12 @@ class TestWorkerSettings:
         """
         Тест парсинга валидного JSON.
         """
-        workers_json = json.dumps([
-            {"queue": "queue1", "concurrency": 2},
-            {"queue": "queue2", "concurrency": 3}
-        ])
+        workers_json = json.dumps(
+            [
+                {"queue": "queue1", "concurrency": 2},
+                {"queue": "queue2", "concurrency": 3},
+            ]
+        )
         with patch.dict("os.environ", {"WORKERS_JSON": workers_json}):
             settings = WorkerSettings()
 
@@ -311,12 +335,14 @@ class TestWorkerSettings:
         """
         Тест фильтрации не-словарей из JSON.
         """
-        workers_json = json.dumps([
-            {"queue": "queue1", "concurrency": 2},
-            "invalid_item",
-            123,
-            {"queue": "queue2", "concurrency": 3}
-        ])
+        workers_json = json.dumps(
+            [
+                {"queue": "queue1", "concurrency": 2},
+                "invalid_item",
+                123,
+                {"queue": "queue2", "concurrency": 3},
+            ]
+        )
         with patch.dict("os.environ", {"WORKERS_JSON": workers_json}):
             settings = WorkerSettings()
 
diff --git a/tests/unit/test_context.py b/tests/unit/test_context.py
index 11aa5bd..d12f3b5 100644
--- a/tests/unit/test_context.py
+++ b/tests/unit/test_context.py
@@ -1,7 +1,7 @@
-# tests/unit/test_context.py
 from __future__ import annotations
 
 from unittest.mock import AsyncMock, Mock, patch
+
 import pytest
 
 from dataloader.context import AppContext, get_session
@@ -71,10 +71,16 @@ class TestAppContext:
         mock_engine = Mock()
         mock_sm = Mock()
 
-        with patch("dataloader.logger.logger.setup_logging") as mock_setup_logging, \
-             patch("dataloader.storage.engine.create_engine", return_value=mock_engine) as mock_create_engine, \
-             patch("dataloader.storage.engine.create_sessionmaker", return_value=mock_sm) as mock_create_sm, \
-             patch("dataloader.context.APP_CONFIG") as mock_config:
+        with (
+            patch("dataloader.logger.logger.setup_logging") as mock_setup_logging,
+            patch(
+                "dataloader.storage.engine.create_engine", return_value=mock_engine
+            ) as mock_create_engine,
+            patch(
+                "dataloader.storage.engine.create_sessionmaker", return_value=mock_sm
+            ) as mock_create_sm,
+            patch("dataloader.context.APP_CONFIG") as mock_config,
+        ):
 
             mock_config.pg.url = "postgresql://test"
 
@@ -194,7 +200,7 @@ class TestGetSession:
         with patch("dataloader.context.APP_CTX") as mock_ctx:
             mock_ctx.sessionmaker = mock_sm
 
-            async for session in get_session():
+            async for _session in get_session():
                 pass
 
             assert mock_exit.call_count == 1
diff --git a/tests/unit/test_notify_listener.py b/tests/unit/test_notify_listener.py
index 2fdc6d2..d70eb60 100644
--- a/tests/unit/test_notify_listener.py
+++ b/tests/unit/test_notify_listener.py
@@ -1,8 +1,8 @@
-# tests/unit/test_notify_listener.py
 from __future__ import annotations
 
 import asyncio
 from unittest.mock import AsyncMock, Mock, patch
+
 import pytest
 
 from dataloader.storage.notify_listener import PGNotifyListener
@@ -25,7 +25,7 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         assert listener._dsn == "postgresql://test"
@@ -47,14 +47,16 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
         mock_conn.execute = AsyncMock()
         mock_conn.add_listener = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             assert listener._conn == mock_conn
@@ -76,14 +78,16 @@ class TestPGNotifyListener:
             dsn="postgresql+asyncpg://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
         mock_conn.execute = AsyncMock()
         mock_conn.add_listener = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn) as mock_connect:
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ) as mock_connect:
             await listener.start()
 
             mock_connect.assert_called_once_with("postgresql://test")
@@ -102,14 +106,16 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
         mock_conn.execute = AsyncMock()
         mock_conn.add_listener = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             handler = listener._on_notify_handler
@@ -131,14 +137,16 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
         mock_conn.execute = AsyncMock()
         mock_conn.add_listener = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             handler = listener._on_notify_handler
@@ -160,14 +168,16 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
         mock_conn.execute = AsyncMock()
         mock_conn.add_listener = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             handler = listener._on_notify_handler
@@ -189,14 +199,16 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
         mock_conn.execute = AsyncMock()
         mock_conn.add_listener = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             handler = listener._on_notify_handler
@@ -218,7 +230,7 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
@@ -227,7 +239,9 @@ class TestPGNotifyListener:
         mock_conn.remove_listener = AsyncMock()
         mock_conn.close = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             assert listener._task is not None
@@ -250,7 +264,7 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
@@ -259,7 +273,9 @@ class TestPGNotifyListener:
         mock_conn.remove_listener = AsyncMock()
         mock_conn.close = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             await listener.stop()
@@ -280,7 +296,7 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
@@ -289,7 +305,9 @@ class TestPGNotifyListener:
         mock_conn.remove_listener = AsyncMock()
         mock_conn.close = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             stop_event.set()
@@ -311,7 +329,7 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
@@ -320,7 +338,9 @@ class TestPGNotifyListener:
         mock_conn.remove_listener = AsyncMock(side_effect=Exception("Remove error"))
         mock_conn.close = AsyncMock()
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             await listener.stop()
@@ -340,7 +360,7 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         mock_conn = AsyncMock()
@@ -349,7 +369,9 @@ class TestPGNotifyListener:
         mock_conn.remove_listener = AsyncMock()
         mock_conn.close = AsyncMock(side_effect=Exception("Close error"))
 
-        with patch("dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn):
+        with patch(
+            "dataloader.storage.notify_listener.asyncpg.connect", return_value=mock_conn
+        ):
             await listener.start()
 
             await listener.stop()
@@ -368,7 +390,7 @@ class TestPGNotifyListener:
             dsn="postgresql://test",
             queue="test_queue",
             callback=callback,
-            stop_event=stop_event
+            stop_event=stop_event,
         )
 
         await listener.stop()
diff --git a/tests/unit/test_pipeline_registry.py b/tests/unit/test_pipeline_registry.py
index 50c8a67..764aff9 100644
--- a/tests/unit/test_pipeline_registry.py
+++ b/tests/unit/test_pipeline_registry.py
@@ -1,9 +1,8 @@
-# tests/unit/test_pipeline_registry.py
 from __future__ import annotations
 
 import pytest
 
-from dataloader.workers.pipelines.registry import register, resolve, tasks, _Registry
+from dataloader.workers.pipelines.registry import _Registry, register, resolve, tasks
 
 
 @pytest.mark.unit
@@ -22,6 +21,7 @@ class TestPipelineRegistry:
         """
         Тест регистрации пайплайна.
         """
+
         @register("test.task")
         def test_pipeline(args: dict):
             return "result"
@@ -33,6 +33,7 @@ class TestPipelineRegistry:
         """
         Тест получения зарегистрированного пайплайна.
         """
+
         @register("test.resolve")
         def test_pipeline(args: dict):
             return "resolved"
@@ -54,6 +55,7 @@ class TestPipelineRegistry:
         """
         Тест получения списка зарегистрированных задач.
         """
+
         @register("task1")
         def pipeline1(args: dict):
             pass
@@ -70,6 +72,7 @@ class TestPipelineRegistry:
         """
         Тест перезаписи существующего пайплайна.
         """
+
         @register("overwrite.task")
         def first_pipeline(args: dict):
             return "first"
diff --git a/tests/unit/test_workers_base.py b/tests/unit/test_workers_base.py
index 383c920..57c1c02 100644
--- a/tests/unit/test_workers_base.py
+++ b/tests/unit/test_workers_base.py
@@ -1,9 +1,8 @@
-# tests/unit/test_workers_base.py
 from __future__ import annotations
 
 import asyncio
-from datetime import datetime, timezone
 from unittest.mock import AsyncMock, MagicMock, Mock, patch
+
 import pytest
 
 from dataloader.workers.base import PGWorker, WorkerConfig
@@ -41,9 +40,11 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=1)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.APP_CONFIG") as mock_cfg, \
-             patch("dataloader.workers.base.PGNotifyListener") as mock_listener_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.APP_CONFIG") as mock_cfg,
+            patch("dataloader.workers.base.PGNotifyListener") as mock_listener_cls,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_ctx.sessionmaker = Mock()
@@ -64,7 +65,9 @@ class TestPGWorker:
                     stop_event.set()
                 return False
 
-            with patch.object(worker, "_claim_and_execute_once", side_effect=mock_claim):
+            with patch.object(
+                worker, "_claim_and_execute_once", side_effect=mock_claim
+            ):
                 await worker.run()
 
             assert mock_listener.start.call_count == 1
@@ -78,9 +81,11 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=1)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.APP_CONFIG") as mock_cfg, \
-             patch("dataloader.workers.base.PGNotifyListener") as mock_listener_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.APP_CONFIG") as mock_cfg,
+            patch("dataloader.workers.base.PGNotifyListener") as mock_listener_cls,
+        ):
 
             mock_logger = Mock()
             mock_ctx.get_logger.return_value = mock_logger
@@ -101,7 +106,9 @@ class TestPGWorker:
                     stop_event.set()
                 return False
 
-            with patch.object(worker, "_claim_and_execute_once", side_effect=mock_claim):
+            with patch.object(
+                worker, "_claim_and_execute_once", side_effect=mock_claim
+            ):
                 await worker.run()
 
             assert worker._listener is None
@@ -156,8 +163,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_session = AsyncMock()
             mock_session.commit = AsyncMock()
@@ -185,8 +194,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_session = AsyncMock()
             mock_sm = MagicMock()
@@ -196,12 +207,14 @@ class TestPGWorker:
             mock_ctx.sessionmaker = mock_sm
 
             mock_repo = Mock()
-            mock_repo.claim_one = AsyncMock(return_value={
-                "job_id": "test-job-id",
-                "lease_ttl_sec": 60,
-                "task": "test.task",
-                "args": {"key": "value"}
-            })
+            mock_repo.claim_one = AsyncMock(
+                return_value={
+                    "job_id": "test-job-id",
+                    "lease_ttl_sec": 60,
+                    "task": "test.task",
+                    "args": {"key": "value"},
+                }
+            )
             mock_repo.finish_ok = AsyncMock()
             mock_repo_cls.return_value = mock_repo
 
@@ -210,8 +223,10 @@ class TestPGWorker:
             async def mock_pipeline(task, args):
                 yield
 
-            with patch.object(worker, "_pipeline", side_effect=mock_pipeline), \
-                 patch.object(worker, "_execute_with_heartbeat", return_value=False):
+            with (
+                patch.object(worker, "_pipeline", side_effect=mock_pipeline),
+                patch.object(worker, "_execute_with_heartbeat", return_value=False),
+            ):
                 result = await worker._claim_and_execute_once()
 
             assert result is True
@@ -225,8 +240,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_session = AsyncMock()
             mock_sm = MagicMock()
@@ -236,12 +253,14 @@ class TestPGWorker:
             mock_ctx.sessionmaker = mock_sm
 
             mock_repo = Mock()
-            mock_repo.claim_one = AsyncMock(return_value={
-                "job_id": "test-job-id",
-                "lease_ttl_sec": 60,
-                "task": "test.task",
-                "args": {}
-            })
+            mock_repo.claim_one = AsyncMock(
+                return_value={
+                    "job_id": "test-job-id",
+                    "lease_ttl_sec": 60,
+                    "task": "test.task",
+                    "args": {},
+                }
+            )
             mock_repo.finish_fail_or_retry = AsyncMock()
             mock_repo_cls.return_value = mock_repo
 
@@ -263,8 +282,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_session = AsyncMock()
             mock_sm = MagicMock()
@@ -274,18 +295,22 @@ class TestPGWorker:
             mock_ctx.sessionmaker = mock_sm
 
             mock_repo = Mock()
-            mock_repo.claim_one = AsyncMock(return_value={
-                "job_id": "test-job-id",
-                "lease_ttl_sec": 60,
-                "task": "test.task",
-                "args": {}
-            })
+            mock_repo.claim_one = AsyncMock(
+                return_value={
+                    "job_id": "test-job-id",
+                    "lease_ttl_sec": 60,
+                    "task": "test.task",
+                    "args": {},
+                }
+            )
             mock_repo.finish_fail_or_retry = AsyncMock()
             mock_repo_cls.return_value = mock_repo
 
             worker = PGWorker(cfg, stop_event)
 
-            with patch.object(worker, "_execute_with_heartbeat", side_effect=ValueError("Test error")):
+            with patch.object(
+                worker, "_execute_with_heartbeat", side_effect=ValueError("Test error")
+            ):
                 result = await worker._claim_and_execute_once()
 
             assert result is True
@@ -301,8 +326,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=1, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_session = AsyncMock()
             mock_sm = MagicMock()
@@ -323,7 +350,9 @@ class TestPGWorker:
                 await asyncio.sleep(0.6)
                 yield
 
-            canceled = await worker._execute_with_heartbeat("job-id", 60, slow_pipeline())
+            canceled = await worker._execute_with_heartbeat(
+                "job-id", 60, slow_pipeline()
+            )
 
             assert canceled is False
             assert mock_repo.heartbeat.call_count >= 1
@@ -336,8 +365,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=1, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_session = AsyncMock()
             mock_sm = MagicMock()
@@ -358,7 +389,9 @@ class TestPGWorker:
                 await asyncio.sleep(0.6)
                 yield
 
-            canceled = await worker._execute_with_heartbeat("job-id", 60, slow_pipeline())
+            canceled = await worker._execute_with_heartbeat(
+                "job-id", 60, slow_pipeline()
+            )
 
             assert canceled is True
 
@@ -370,8 +403,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.resolve_pipeline") as mock_resolve:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.resolve_pipeline") as mock_resolve,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_ctx.sessionmaker = Mock()
@@ -397,8 +432,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.resolve_pipeline") as mock_resolve:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.resolve_pipeline") as mock_resolve,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_ctx.sessionmaker = Mock()
@@ -424,8 +461,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.resolve_pipeline") as mock_resolve:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.resolve_pipeline") as mock_resolve,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_ctx.sessionmaker = Mock()
@@ -450,8 +489,10 @@ class TestPGWorker:
         cfg = WorkerConfig(queue="test", heartbeat_sec=10, claim_backoff_sec=5)
         stop_event = asyncio.Event()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_session = AsyncMock()
             mock_sm = MagicMock()
@@ -461,12 +502,14 @@ class TestPGWorker:
             mock_ctx.sessionmaker = mock_sm
 
             mock_repo = Mock()
-            mock_repo.claim_one = AsyncMock(return_value={
-                "job_id": "test-job-id",
-                "lease_ttl_sec": 60,
-                "task": "test.task",
-                "args": {}
-            })
+            mock_repo.claim_one = AsyncMock(
+                return_value={
+                    "job_id": "test-job-id",
+                    "lease_ttl_sec": 60,
+                    "task": "test.task",
+                    "args": {},
+                }
+            )
             mock_repo.finish_fail_or_retry = AsyncMock()
             mock_repo_cls.return_value = mock_repo
 
@@ -484,19 +527,16 @@ class TestPGWorker:
             assert "cancelled by shutdown" in args[1]
             assert kwargs.get("is_canceled") is True
 
-
-
-
-
-
     @pytest.mark.asyncio
     async def test_execute_with_heartbeat_raises_cancelled_when_stop_set(self):
         cfg = WorkerConfig(queue="test", heartbeat_sec=1000, claim_backoff_sec=5)
         stop_event = asyncio.Event()
         stop_event.set()
 
-        with patch("dataloader.workers.base.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.base.QueueRepository") as mock_repo_cls:
+        with (
+            patch("dataloader.workers.base.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.base.QueueRepository") as mock_repo_cls,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_ctx.sessionmaker = Mock()
@@ -509,4 +549,3 @@ class TestPGWorker:
 
             with pytest.raises(asyncio.CancelledError):
                 await worker._execute_with_heartbeat("job-id", 60, one_yield())
-
diff --git a/tests/unit/test_workers_manager.py b/tests/unit/test_workers_manager.py
index c8c5485..2538cbd 100644
--- a/tests/unit/test_workers_manager.py
+++ b/tests/unit/test_workers_manager.py
@@ -1,8 +1,8 @@
-# tests/unit/test_workers_manager.py
 from __future__ import annotations
 
 import asyncio
 from unittest.mock import AsyncMock, MagicMock, Mock, patch
+
 import pytest
 
 from dataloader.workers.manager import WorkerManager, WorkerSpec, build_manager_from_env
@@ -39,9 +39,11 @@ class TestWorkerManager:
             WorkerSpec(queue="queue2", concurrency=1),
         ]
 
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg, \
-             patch("dataloader.workers.manager.PGWorker") as mock_worker_cls:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+            patch("dataloader.workers.manager.PGWorker") as mock_worker_cls,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_cfg.worker.heartbeat_sec = 10
@@ -67,9 +69,11 @@ class TestWorkerManager:
         """
         specs = [WorkerSpec(queue="test", concurrency=0)]
 
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg, \
-             patch("dataloader.workers.manager.PGWorker") as mock_worker_cls:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+            patch("dataloader.workers.manager.PGWorker") as mock_worker_cls,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_cfg.worker.heartbeat_sec = 10
@@ -93,9 +97,11 @@ class TestWorkerManager:
         """
         specs = [WorkerSpec(queue="test", concurrency=2)]
 
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg, \
-             patch("dataloader.workers.manager.PGWorker") as mock_worker_cls:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+            patch("dataloader.workers.manager.PGWorker") as mock_worker_cls,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_cfg.worker.heartbeat_sec = 10
@@ -108,8 +114,6 @@ class TestWorkerManager:
             manager = WorkerManager(specs)
             await manager.start()
 
-            initial_task_count = len(manager._tasks)
-
             await manager.stop()
 
             assert manager._stop.is_set()
@@ -123,10 +127,12 @@ class TestWorkerManager:
         """
         specs = [WorkerSpec(queue="test", concurrency=1)]
 
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg, \
-             patch("dataloader.workers.manager.PGWorker") as mock_worker_cls, \
-             patch("dataloader.workers.manager.requeue_lost") as mock_requeue:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+            patch("dataloader.workers.manager.PGWorker") as mock_worker_cls,
+            patch("dataloader.workers.manager.requeue_lost") as mock_requeue,
+        ):
 
             mock_logger = Mock()
             mock_ctx.get_logger.return_value = mock_logger
@@ -161,10 +167,12 @@ class TestWorkerManager:
         """
         specs = [WorkerSpec(queue="test", concurrency=1)]
 
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg, \
-             patch("dataloader.workers.manager.PGWorker") as mock_worker_cls, \
-             patch("dataloader.workers.manager.requeue_lost") as mock_requeue:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+            patch("dataloader.workers.manager.PGWorker") as mock_worker_cls,
+            patch("dataloader.workers.manager.requeue_lost") as mock_requeue,
+        ):
 
             mock_logger = Mock()
             mock_ctx.get_logger.return_value = mock_logger
@@ -203,8 +211,10 @@ class TestBuildManagerFromEnv:
         """
         Тест создания менеджера из конфигурации.
         """
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_cfg.worker.parsed_workers.return_value = [
@@ -224,8 +234,10 @@ class TestBuildManagerFromEnv:
         """
         Тест, что пустые имена очередей пропускаются.
         """
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_cfg.worker.parsed_workers.return_value = [
@@ -243,8 +255,10 @@ class TestBuildManagerFromEnv:
         """
         Тест обработки отсутствующих полей с дефолтными значениями.
         """
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_cfg.worker.parsed_workers.return_value = [
@@ -262,8 +276,10 @@ class TestBuildManagerFromEnv:
         """
         Тест, что concurrency всегда минимум 1.
         """
-        with patch("dataloader.workers.manager.APP_CTX") as mock_ctx, \
-             patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg:
+        with (
+            patch("dataloader.workers.manager.APP_CTX") as mock_ctx,
+            patch("dataloader.workers.manager.APP_CONFIG") as mock_cfg,
+        ):
 
             mock_ctx.get_logger.return_value = Mock()
             mock_cfg.worker.parsed_workers.return_value = [
diff --git a/tests/unit/test_workers_reaper.py b/tests/unit/test_workers_reaper.py
index 43669db..cf6c51d 100644
--- a/tests/unit/test_workers_reaper.py
+++ b/tests/unit/test_workers_reaper.py
@@ -1,8 +1,8 @@
-# tests/unit/test_workers_reaper.py
 from __future__ import annotations
 
+from unittest.mock import AsyncMock, Mock, patch
+
 import pytest
-from unittest.mock import AsyncMock, patch, Mock
 
 from dataloader.workers.reaper import requeue_lost