• [Enhancement] Dynamically support librdkafka fatal errors with correct reported details.
• [Enhancement] Add producer block API to setup for simplified WaterDrop producer configuration without manual producer instance creation, using a transparent ConfigProxy during setup to avoid polluting the permanent config API.
• [Change] Require waterdrop >= 2.8.14 to support new features.
• [Change] Require karafka-rdkafka >= 0.23.1 to support new rebalance protocol.