diff --git a/api/run_server.py b/api/run_server.py
index f2449e1..37a9775 100644
--- a/api/run_server.py
+++ b/api/run_server.py
@@ -1,4 +1,5 @@
 import uvicorn
+
 from src import app, get_settings
 
 if __name__ == "__main__":
@@ -9,4 +10,3 @@ if __name__ == "__main__":
         port=settings.server.PORT,
         lifespan="on",
     )
-
diff --git a/api/src/__init__.py b/api/src/__init__.py
index 61c3faa..97b1796 100644
--- a/api/src/__init__.py
+++ b/api/src/__init__.py
@@ -2,6 +2,6 @@ from .app import app
 from .core.config import get_settings
 
 __all__ = [
-    'app',
-    'get_settings',
-]
\ No newline at end of file
+    "app",
+    "get_settings",
+]
diff --git a/api/src/common/exceptions.py b/api/src/common/exceptions.py
index 2eca689..3eaa18e 100644
--- a/api/src/common/exceptions.py
+++ b/api/src/common/exceptions.py
@@ -1,5 +1,6 @@
 class NotFoundError(Exception):
     pass
 
+
 class CouldntCreateError(Exception):
-    pass
\ No newline at end of file
+    pass
diff --git a/api/src/core/clients.py b/api/src/core/clients.py
index 8f07d24..ceb87e5 100644
--- a/api/src/core/clients.py
+++ b/api/src/core/clients.py
@@ -1,6 +1,7 @@
 """Клиенты инфраструктуры. Каркас: оставлен S3Storage; outbox-паблишер (PollWorker) реализуется в Срезе 0
 по docs/context/03-architecture.md (референс — reference-old-arm/api/src/core/clients.py).
 """
+
 from io import BytesIO
 
 from miniopy_async import Minio
@@ -10,11 +11,11 @@ class S3Storage:
     def __init__(self, client: Minio, bucket_name: str):
         self.client = client
         self.bucket = bucket_name
-    
+
     async def put_object(self, obj_name, file_data):
         try:
             stream = BytesIO(file_data)
-            await self.client.put_object(self.bucket, obj_name, stream, length=len(file_data)) 
+            await self.client.put_object(self.bucket, obj_name, stream, length=len(file_data))
         except:
             raise
 
@@ -23,5 +24,5 @@ class S3Storage:
             response = await self.client.get_object(self.bucket, obj_name)
             # file_bytes = await response.content.read()
             return response
-        except: 
+        except:
             raise
diff --git a/api/src/core/logger.py b/api/src/core/logger.py
index 2f99033..4d1ae4c 100644
--- a/api/src/core/logger.py
+++ b/api/src/core/logger.py
@@ -5,7 +5,6 @@ import sys
 
 from loguru import logger
 
-
 # Периодические пробы мониторинга/оркестратора и служебные doc-эндпоинты.
 NOISE_PATHS: tuple[str, ...] = (
     "/healthcheck",
@@ -22,8 +21,20 @@ _NOISE_MARKERS: tuple[str, ...] = ("/static/", "/static-swagger/")
 
 # Расширения статических ассетов (картинки, стили, скрипты, шрифты).
 _STATIC_SUFFIXES: tuple[str, ...] = (
-    ".png", ".jpg", ".jpeg", ".gif", ".svg", ".ico", ".webp",
-    ".css", ".js", ".map", ".woff", ".woff2", ".ttf", ".eot",
+    ".png",
+    ".jpg",
+    ".jpeg",
+    ".gif",
+    ".svg",
+    ".ico",
+    ".webp",
+    ".css",
+    ".js",
+    ".map",
+    ".woff",
+    ".woff2",
+    ".ttf",
+    ".eot",
 )
 
 
@@ -73,6 +84,7 @@ def setup_logger(
 
     class InterceptHandler(logging.Handler):
         def emit(self, record: logging.LogRecord) -> None:
+            lvl: str | int
             try:
                 lvl = logger.level(record.levelname).name
             except ValueError:
diff --git a/api/src/core/nats_callback.py b/api/src/core/nats_callback.py
index 2f2e05b..e3420b5 100644
--- a/api/src/core/nats_callback.py
+++ b/api/src/core/nats_callback.py
@@ -4,6 +4,7 @@
 маппинг JSON из S3 в document/osv_entry/financial_statement_*) реализуется в Срезе 0–2 по
 docs/context/03-architecture.md. Для референса — reference-old-arm/api/src/core/nats_callback.py.
 """
+
 from loguru import logger
 from nats.aio.client import Client as NATS