Apply ruff formatting to Loguru migration files

Automatic code formatting applied by ruff during pre-commit hook.
These are cosmetic changes only (code style, no functional changes).

Files formatted:
- app/core/logging.py
- tests/test_logging.py
- tests/test_loguru_context.py
- tests/test_loguru_integration.py
- tests/test_loguru_setup.py

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/core/logging.py

@@ -53,7 +53,9 @@ def _serialize_record(record: dict) -> str:
     # Add exception info if present
     if record["exception"]:
         log_entry["exception"] = {
-            "type": record["exception"].type.__name__ if record["exception"].type else None,
+            "type": record["exception"].type.__name__
+            if record["exception"].type
+            else None,
             "value": str(record["exception"].value),
         }
 
@@ -122,9 +124,7 @@ def setup_logging() -> None:
         )
 
     # Log startup configuration
-    logger.info(
-        f"Logging initialized with format={log_format_type}, level={log_level}"
-    )
+    logger.info(f"Logging initialized with format={log_format_type}, level={log_level}")
 
 
 def get_logger(name: str) -> Any:
@@ -176,10 +176,7 @@ class RequestLogger:
         context_request_id = request_id_var.get() or request_id
 
         self.logger.bind(
-            request_id=context_request_id,
-            method=method,
-            path=path,
-            **kwargs
+            request_id=context_request_id, method=method, path=path, **kwargs
         ).info(f"Request {context_request_id}: {method} {path}")
 
     def log_response(
@@ -201,7 +198,7 @@ class RequestLogger:
             request_id=context_request_id,
             status_code=status_code,
             duration_ms=duration_ms,
-            **kwargs
+            **kwargs,
         ).info(f"Response {context_request_id}: {status_code} ({duration_ms:.2f}ms)")
 
     def log_error(self, request_id: str, error: str, **kwargs: Any) -> None:
@@ -216,8 +213,6 @@ class RequestLogger:
         # Get request ID from context var (fallback to parameter)
         context_request_id = request_id_var.get() or request_id
 
-        self.logger.bind(
-            request_id=context_request_id,
-            error=error,
-            **kwargs
-        ).error(f"Error {context_request_id}: {error}")
+        self.logger.bind(request_id=context_request_id, error=error, **kwargs).error(
+            f"Error {context_request_id}: {error}"
+        )

tests/test_logging.py

@@ -7,7 +7,6 @@ without using mocks - testing real behavior with Loguru.
 
 from pathlib import Path
 
-import pytest
 from loguru import logger
 
 

tests/test_loguru_context.py

@@ -8,7 +8,6 @@ These tests verify:
 """
 
 import asyncio
-import io
 from pathlib import Path
 
 import pytest
@@ -68,9 +67,7 @@ class TestLoguruContext:
 
         log_file = tmp_path / "isolation.log"
         logger.remove()
-        logger.add(
-            log_file, format="{extra[request_id]} | {message}", level="INFO"
-        )
+        logger.add(log_file, format="{extra[request_id]} | {message}", level="INFO")
 
         # Simulate first request
         request_id_var.set("request-1")
@@ -91,9 +88,7 @@ class TestLoguruContext:
 
         log_file = tmp_path / "preservation.log"
         logger.remove()
-        logger.add(
-            log_file, format="{extra[request_id]} | {message}", level="INFO"
-        )
+        logger.add(log_file, format="{extra[request_id]} | {message}", level="INFO")
 
         async def process_with_delay(request_id: str):
             request_id_var.set(request_id)

tests/test_loguru_integration.py

@@ -5,7 +5,6 @@ These tests verify observable behavior through the API rather than log output,
 since log output testing is covered by unit tests.
 """
 
-import pytest
 from fastapi.testclient import TestClient
 
 
@@ -16,9 +15,7 @@ class TestLoguruIntegration:
         """Verify request ID is preserved in response headers."""
         custom_request_id = "header-preservation-test-456"
 
-        response = client.get(
-            "/health", headers={"X-Request-ID": custom_request_id}
-        )
+        response = client.get("/health", headers={"X-Request-ID": custom_request_id})
 
         assert response.status_code == 200
         assert response.headers["X-Request-ID"] == custom_request_id
@@ -72,7 +69,9 @@ class TestLoguruIntegration:
         # Request ID should still be in headers
         assert response.headers["X-Request-ID"] == custom_request_id
 
-    def test_logging_context_does_not_interfere_with_responses(self, client: TestClient):
+    def test_logging_context_does_not_interfere_with_responses(
+        self, client: TestClient
+    ):
         """Verify logging context doesn't affect normal request/response cycle."""
         # Make several requests to ensure logging doesn't cause issues
         for i in range(5):

tests/test_loguru_setup.py

@@ -10,7 +10,6 @@ These tests verify:
 import json
 from pathlib import Path
 
-import pytest
 from loguru import logger
 
 
@@ -55,7 +54,9 @@ class TestLoguruSetup:
         logger.remove()
         logger.add(log_file, serialize=True, level="INFO")
 
-        logger.bind(field1="value1", field2="value2", field3=123).info("Multi-bind test")
+        logger.bind(field1="value1", field2="value2", field3=123).info(
+            "Multi-bind test"
+        )
 
         with open(log_file) as f:
             log_entry = json.loads(f.readline())