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2 commits

Author SHA1 Message Date
6476bc8045 Dedupe ERA5 fetch jobs by (lat, lon, valid_time)
The Era5FetchWorker now declares an Oban unique constraint on
{lat, lon, valid_time} for any job in available/scheduled/executing/
retryable, so two backfill runs targeting the same contact grid point
can no longer spawn parallel CDS requests for the same hour.

Because Oban OSS insert_all doesn't honor unique, ERA5 jobs are now
routed through Oban.insert/1 from ContactWeatherEnqueueWorker and the
era5_backfill mix task. Other worker types still use insert_all.
2026-04-08 15:52:53 -05:00
dea407c8ca Add ERA5 reanalysis and RTMA data sources
ERA5 (Copernicus CDS API):
- Era5Profile schema matching HRRR profile structure for interop
- Era5Client with async job submission, polling, GRIB2 download
- Era5FetchWorker (Oban queue: era5, max_attempts: 5)
- Unified lookup: Weather.best_profile_for_contact/1 tries HRRR
  first, falls back to ERA5 for pre-2014 contacts

RTMA (NOAA S3, 2.5km/15-min):
- RtmaObservation schema for surface-only fields
- RtmaClient with byte-range GRIB2 requests (same pattern as HRRR)
- RtmaFetchWorker (Oban queue: rtma, max_attempts: 10)
- Weather.find_nearest_rtma/3 for surface condition lookup

Both queues added to production Oban config (2 workers each).
2026-04-07 12:04:16 -05:00