fix: resolve linting and formatting issues for CI

- Use contextlib.suppress instead of try/except/pass (SIM105)
- Prefix unused fixture arguments with underscore (ARG002)
- Replace asyncio.TimeoutError with TimeoutError (UP041)
- Apply ruff formatting to all files

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tests/profiler/test_models.py

@@ -160,9 +160,7 @@ class TestWalletInfo:
         """Test wallet age when no first transaction."""
         assert sample_wallet.wallet_age_days is None
 
-    def test_wallet_age_days_with_transaction(
-        self, wallet_with_transaction: WalletInfo
-    ) -> None:
+    def test_wallet_age_days_with_transaction(self, wallet_with_transaction: WalletInfo) -> None:
         """Test wallet age calculation."""
         age = wallet_with_transaction.wallet_age_days