celery-manager 0.1.0a3

Third alpha of celery-manager: stable interval-schedule skips and race-free task-run writes (verified against real PostgreSQL and MySQL).

pip install --pre -U celery-manager

Fixed

• Interval-schedule occurrences (run_every / seconds / timedelta) are
  now anchored to the schedule's last observed run instead of "now + interval".
  Skips on interval schedules display stably across page loads and actually
  fire against beat's real run times.
• Race-free task_runs writes. The events listener, the @track
  decorator, report_progress() and the retry button used to check-then-insert
  the same row. They now share one race-safe get-or-create (native upsert on
  SQLite/PostgreSQL/MySQL, SAVEPOINT fallback elsewhere), so:
  • retry no longer returns a 500 or loses its lineage when the worker's row
    lands first;
  • the listener no longer leaves worker/queue empty when it loses the race;
  • late or out-of-order events can no longer downgrade a run's status;
  • the producer's hostname from task-sent is no longer recorded as the worker;
  • event arguments are stored as JSON, so retries from listener-created rows
    decode correctly.

Added

• Documentation site: https://pythondeveloper6.github.io/celery-manager/.
• Dashboard screenshots in the README and docs, and an "Interval schedules"
  section in the dashboard guide.
• The race tests run against PostgreSQL in CI (CM_TEST_DB_URL).

Changed

• README and docs no longer say tasks can be started from the UI; starting is
  API-only (POST /api/tasks/start).