stem_postgres 0.1.0

Postgres broker, result backend, and scheduler utilities for Stem.

0.1.0

• Added workflow run lease tracking and claim/renew helpers to distribute workflow execution safely across workers.
• Fixed worker heartbeat lookups by restoring soft-deleted heartbeat rows on upsert.
• Added DataSource-based initialization that runs migrations before use, and introduced async fromDataSource helpers across Postgres adapters (including workflow stores).
• Migrated the Postgres adapter to Ormed with generated registry/migrations for schema management.
• Added a local seed runtime to run Postgres seeders without requiring ormed_cli.
• Hardened lock-store timing/TTL evaluation for more reliable coordination.
• Updated Ormed dependencies to 0.1.0.
• Added workflow run lease migrations plus runnable discovery and metadata paging updates in the workflow store.
• Migrated IDs to UUID v7 and simplified datasource/connection handling.
• Added workflow store contract coverage and refreshed adapter docs/tests.
• Updated dependencies.

0.1.0-alpha.4

• Added durable watcher persistence and atomic event resolution so Durable Workflows resume with stored payloads and metadata.
• Refreshed workflow run bookkeeping: saveStep now acts as a heartbeat, rewind/auto-version checkpoints are persisted with accurate ordering, and suspension records track resumeAt/deadline.
• Implemented chord-claiming improvements and claim-timer cleanup to keep Postgres queues healthy during purges and consumer shutdown.
• Shipped postgresWorkflowStoreFactory so CLI tooling and integration tests can bootstrap Postgres-backed Durable Workflows with a single helper.
• Added lock-store contract coverage for PostgresLockStore, ensuring the semantics required by TaskOptions.unique and scheduler coordination stay portable across adapters.

0.1.0-alpha.3

• Initial release containing Postgres broker, result backend, scheduler stores, and adapter contract tests extracted from the core stem package.