fix: Resolve ruff linting issues (unused imports and variables)

Author: mcdax

comdirect_client/client.py

@@ -529,7 +529,7 @@ async def refresh_token(self) -> bool:
 
                 return True
 
-            except httpx.TimeoutException as e:
+            except httpx.TimeoutException:
                 logger.error("Network timeout during token refresh")
                 return False
             except httpx.HTTPStatusError as e:

examples/basic_usage.py

@@ -146,11 +146,11 @@ async def main():
                     if tx.amount:
                         logger.info(f"    Amount: {tx.amount.value} {tx.amount.unit}")
                     else:
-                        logger.info(f"    Amount: N/A")
+                        logger.info("    Amount: N/A")
                     if tx.transactionType:
                         logger.info(f"    Type: {tx.transactionType.text}")
                     else:
-                        logger.info(f"    Type: N/A")
+                        logger.info("    Type: N/A")
                     logger.info(
                         f"    Text: {tx.remittanceInfo[:50] if tx.remittanceInfo else 'N/A'}..."
                     )

tests/test_comdirect_bdd.py

@@ -6,18 +6,13 @@
 
 import logging
 from datetime import datetime, timedelta
-from unittest.mock import AsyncMock, MagicMock, Mock, patch
+from unittest.mock import AsyncMock, patch
 
 import httpx
 import pytest
 from pytest_bdd import given, parsers, scenarios, then, when
 
 from comdirect_client.client import ComdirectClient
-from comdirect_client.exceptions import (
-    AuthenticationError,
-    TANTimeoutError,
-    TokenExpiredError,
-)
 
 # Load all scenarios from the feature file
 scenarios("../comdirect_api.feature")
@@ -196,15 +191,7 @@ def tan_polling_configured():
 def verify_polling_logs(log_capture, log_message):
     """Verify polling logs appear."""
     # Count how many times the polling log appears
-    matching_logs = [r for r in log_capture.records if log_message in r.message]
-    # In actual tests, we'd verify the count matches expected polls
-    pass
-
-
-@then("the library should activate the session after TAN approval")
-def session_activated():
-    """Verify session activation."""
-    pass
+    # In actual tests, we would verify the count matches expected polls
 
 
 @then("the library should exchange for secondary token")

tests/test_error_handling.py

@@ -1,7 +1,6 @@
 """Integration tests for HTTP error handling and query parameters."""
 
 import pytest
-import httpx
 from datetime import datetime, timedelta
 from unittest.mock import AsyncMock, MagicMock, patch
 
@@ -177,7 +176,7 @@ class TestFieldNameFallback:
 
     def test_transaction_parse_with_debtor_field(self):
         """Test parsing transaction with correct 'debtor' field."""
-        from comdirect_client import Transaction, AccountInformation
+        from comdirect_client import Transaction
 
         data = {
             "bookingStatus": "BOOKED",