Elie Habib 8089fd9d53 feat(resilience): publish resilience:static:fao aggregate from static seed (#3050) ...

* feat(resilience): publish resilience:static:fao aggregate from static seed

Weekly validation cron Outcome-Backtest reads resilience:static:fao for
the Food Crisis Escalation family, but nothing wrote that key — dangling
reference, Food Crisis stuck at AUC=0.5.

IPC Phase 3+ data is already fetched by fetchFsinDataset (HDX global IPC
CSV) and stored per-country. This PR reshapes the same in-memory map into
an aggregate view and writes it in the existing Redis pipeline — no extra
fetch, no new cron service.

Output shape matches what detectFoodCrisis already walks:
  { countries: { [iso2]: { ipcPhase, phase, peopleInCrisis, year, source } },
    count, fetchedAt, seedYear, source: 'hdx-ipc' }

Only Phase 3+ countries are included, matching IPC's own publish rule.
Absence = not-monitored-crisis, consistent with scoreFoodWater()'s
stable-absence semantics.

Tests: 5 unit tests for buildFaoAggregate (incl. contract test against
detectFoodCrisis) + 1 health.js registration test. No cron/Railway
changes needed — seed-bundle-static-ref picks it up on its next October
window; restart to backfill sooner.

FX Stress / Power Outages / Refugees / Conflict also fail today but for
different reasons (detector shape mismatches) — out of scope here.

* fix(resilience): wire resilienceStaticFao into SEED_META to unmask empty-state

Reviewer catch on #3050: adding resilienceStaticFao to STANDALONE_KEYS
and EMPTY_DATA_OK_KEYS without a matching SEED_META entry leaves
seedStale=null in the standalone-key health branch, so an empty or
missing resilience:static:fao key resolves to plain OK instead of
STALE_SEED — silently masking the exact bug this PR is meant to
surface.

Adds SEED_META.resilienceStaticFao pointing at seed-meta:resilience:static
(same heartbeat as resilienceStaticIndex, since the aggregate is written
in the same Redis pipeline by the same seeder). Now: missing data with
stale heartbeat -> STALE_SEED (warn); with fresh heartbeat and no
countries in Phase 3+ -> OK (still valid per EMPTY_DATA_OK_KEYS).

Same trap documented in feedback_empty_data_ok_keys_bootstrap_blind_spot.md
but in the STANDALONE_KEYS path, not BOOTSTRAP_KEYS.

Test locks it in with a source-string regex assertion.

2026-04-13 13:00:58 +04:00

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