v1.2.0

Added

• Added durable action lanes with lane-level worker, batch, parallelism, retry, and priority settings.
• Added EnqueueOptions.Lane and MuleActionContext.Lane.
• Added lane-level polling intervals for recovery polling.
• Added lane-level immediate dispatch queue capacity.
• Added concurrent dispatcher workers with configurable maximum parallelism.
• Added extended diagnostics for expired locks, duplicate enqueues, backlog, retries, failures, and latency.
• Added StartedOnUtc and TerminalOnUtc tracking for latency diagnostics.
• Added MuleRetryPolicy with fixed, linear, and exponential backoff plus max delay and jitter.
• Added runtime metrics for completed actions, failed actions, ignored duplicates, and recent throughput.
• Added SQL Server upgrade script for the v1.2.0 storage changes.
• Added optional SQL Server integration tests for concurrent deduplication and replica-style atomic claims.
• Added high-volume in-memory dispatcher stress coverage.

Changed

• Changed pending recovery to claim and lock batches atomically before execution.
• Changed the in-memory dispatch queue to support multiple concurrent readers.
• Changed immediate dispatch queues to be isolated per lane and drained by lane priority.
• Changed duplicate enqueues to return the existing durable action id when a deduplication match is found.
• Changed EF Core storage to use a unique deduplication index for ActionKey and DeduplicationKey.
• Changed SQL Server batch claims to use an ordered CTE with UPDLOCK, READPAST, ROWLOCK, and OUTPUT INSERTED.
• Changed lane priority handling so higher-priority lanes claim work before lower-priority lanes.