Stable Firefly scheduling and execution domain model.

Batch partitioning, progress, checkpoint, and object-store contracts for Firefly.

Scheduler configuration catalog contracts and in-memory implementation.

Execution lifecycle, command, and tracing contracts.

Calendar, blackout, dependency, and scheduling semantics.

Persistence contracts and scheduler storage records.

Job handler registry and idempotency wrappers.

Scheduler node, shard lease, and coordination contracts.

Executor registry and transport-neutral dispatch contracts.

In-memory stores, audit, metrics, and lifecycle support.

General data-binding functionality for Jackson: works on core streaming API

OpenTelemetry API