KIP-438 — Expose task, connector IDs in Connect API

Discussion ConnectAdmin

Exposes the task ID and connector name to `SourceTask` and `SinkTask` implementations via a `TaskContext` object passed to `initialize()`, allowing connector code to include its own task identity in log messages and custom metrics. Connect tasks currently lack programmatic access to their assigned task ID, making connector-generated logs and metrics unattributable to the specific task instance.

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