Full cutover: the propagation_scores Postgres table is gone, and
the binary files under /data/scores are the sole source of truth
for the map render path. Three stacked changes:
1. New migration drops the propagation_scores table and its indexes
(the earlier tuning migrations for it were already applied and
are now no-ops against a missing table, which is fine — Ecto
just runs them on fresh environments).
2. Propagation context is gutted of every GridScore reference.
replace_scores/2 writes files only. upsert_scores/2 is deleted.
load_scores_from_db, available_valid_times_from_db,
point_detail_from_db, point_forecast_from_db, fetch_factors,
coalesce_factors, the Postgres side of prune_old_scores, and
the Postgres fallbacks in latest/earliest_valid_time are all
removed. point_detail always returns an empty factors map now
since factor breakdowns were retired with the table.
3. Deleted modules:
- Propagation.GridScore (the schema)
- Propagation.ScorerDiff (read factors from the table)
- Propagation.AsosNudge (helper for AsosAdjustmentWorker)
- Workers.AsosAdjustmentWorker (its cron was already disabled)
- Mix.Tasks.ScorerDiff (wrapper around the deleted module)
And their tests. AdminTaskWorker's scorer_diff task is a
logging no-op so any queued Oban rows drain cleanly.
Release.scorer_diff stays as a stub that tells the operator.
propagation_prune_worker_test rewritten to exercise ScoresFile
pruning. propagation_test.exs rewritten to use replace_scores +
ScoresFile throughout (no more GridScore / upsert_scores paths).
Aliases: add module aliases for 9 nested module references
Apply: replace apply/3 with direct module attribute calls
Line length: break 1 long spec line
Refactoring: extract helpers to reduce complexity and nesting
in show.ex, radio.ex, weather workers, terrain, duct detection,
backfill dashboard, contact map, and mix tasks
Release.backtest_all, climatology, native_derive now enqueue an
AdminTaskWorker job on the new :admin queue and return immediately.
Progress visible in Oban Web at /admin/oban.
