style: apply ruff formatting to source and test files

app/infrastructure/middleware/error_handler.py

@@ -1,6 +1,6 @@
 """Exception handling middleware."""
 
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 
 from fastapi import FastAPI, Request
 from fastapi.responses import JSONResponse
@@ -33,9 +33,7 @@ def get_status_code(exc: DomainException) -> int:
             return 500
 
 
-async def domain_exception_handler(
-    request: Request, exc: DomainException
-) -> JSONResponse:
+async def domain_exception_handler(request: Request, exc: DomainException) -> JSONResponse:
     """Handle domain exceptions."""
     status_code = get_status_code(exc)
     return JSONResponse(
@@ -43,22 +41,20 @@ async def domain_exception_handler(
         content={
             "error": exc.__class__.__name__,
             "message": exc.message,
-            "timestamp": datetime.now(timezone.utc).isoformat(),
+            "timestamp": datetime.now(UTC).isoformat(),
             "path": str(request.url.path),
         },
     )
 
 
-async def http_exception_handler(
-    request: Request, exc: StarletteHTTPException
-) -> JSONResponse:
+async def http_exception_handler(request: Request, exc: StarletteHTTPException) -> JSONResponse:
     """Handle HTTP exceptions."""
     return JSONResponse(
         status_code=exc.status_code,
         content={
             "error": "HTTPException",
             "message": str(exc.detail),
-            "timestamp": datetime.now(timezone.utc).isoformat(),
+            "timestamp": datetime.now(UTC).isoformat(),
             "path": str(request.url.path),
         },
     )
@@ -71,7 +67,7 @@ async def generic_exception_handler(request: Request, exc: Exception) -> JSONRes
         content={
             "error": "InternalServerError",
             "message": "An unexpected error occurred",
-            "timestamp": datetime.now(timezone.utc).isoformat(),
+            "timestamp": datetime.now(UTC).isoformat(),
             "path": str(request.url.path),
         },
     )