- Remove unused imports (UpstreamClient, UpstreamClientConfig, UpstreamHTTPError, UpstreamConnectionError, UpstreamTimeoutError) - Simplify matched_source selection logic, removing dead conditional that always evaluated to True due to 'or True'
- Remove unused imports (UpstreamClient, UpstreamClientConfig, UpstreamHTTPError, UpstreamConnectionError, UpstreamTimeoutError) - Simplify matched_source selection logic, removing dead conditional that always evaluated to True due to 'or True'