feat(climate+health):add shared air quality seed and mirrored health (#2634)

* feat(climate+health):add shared air quality seed and mirrored health/climate RPCs

* feat(climate+health):add shared air quality seed and mirrored health/climate RPCs

* fix(air-quality): address review findings — TTL, seed-health, FAST_KEYS, shared meta

- Raise CACHE_TTL from 3600 to 10800 (3× the 1h cron cadence; gold standard)
- Add health:air-quality to api/seed-health.js SEED_DOMAINS so monitoring dashboard tracks freshness
- Remove climateAirQuality and healthAirQuality from FAST_KEYS (large station payloads; load in slow batch)
- Point climateAirQuality SEED_META to same meta key as healthAirQuality (same seeder run, one source of truth)

* fix(bootstrap): move air quality keys to SLOW tier — large station payloads avoid critical-path batch

* fix(air-quality): fix malformed OpenAQ URL and remove from bootstrap until panel exists

- Drop deprecated first URL attempt (parameters=pm25, order_by=lastUpdated, sort=desc);
  use correct v3 params (parameters_id=2, sort_order=desc) directly — eliminates
  guaranteed 4xx retry cycle per page on 20-page crawl
- Remove climateAirQuality and healthAirQuality from BOOTSTRAP_CACHE_KEYS, SLOW_KEYS,
  and BOOTSTRAP_TIERS — no panel consumes these yet; adding thousands of station records
  to every startup bootstrap is pure payload bloat
- Remove normalizeAirQualityPayload helpers from bootstrap.js (no longer called)
- Update service wrappers to fetch via RPC directly; re-add bootstrap hydration
  when a panel actually needs it

* fix(air-quality): raise lock TTL to 3600s to cover 20-page crawl worst case

2 OpenAQ calls × 20 pages × (30s timeout × 3 attempts) = 3600s max runtime.
Previous 600s TTL allowed concurrent cron runs on any degraded upstream.

---------

Co-authored-by: Elie Habib <elie.habib@gmail.com>

docs/api/HealthService.openapi.yaml

@@ -29,6 +29,32 @@ paths:
                         application/json:
                             schema:
                                 $ref: '#/components/schemas/Error'
+    /api/health/v1/list-air-quality-alerts:
+        get:
+            tags:
+                - HealthService
+            summary: ListAirQualityAlerts
+            description: ListAirQualityAlerts returns recent PM2.5 stations with AQI-derived health risk.
+            operationId: ListAirQualityAlerts
+            responses:
+                "200":
+                    description: Successful response
+                    content:
+                        application/json:
+                            schema:
+                                $ref: '#/components/schemas/ListAirQualityAlertsResponse'
+                "400":
+                    description: Validation error
+                    content:
+                        application/json:
+                            schema:
+                                $ref: '#/components/schemas/ValidationError'
+                default:
+                    description: Error response
+                    content:
+                        application/json:
+                            schema:
+                                $ref: '#/components/schemas/Error'
 components:
     schemas:
         Error:
@@ -119,3 +145,45 @@ components:
                     format: int32
                     description: Case count if reported by source (0 = unknown).
             description: DiseaseOutbreakItem represents a single disease outbreak event.
+        ListAirQualityAlertsRequest:
+            type: object
+        ListAirQualityAlertsResponse:
+            type: object
+            properties:
+                alerts:
+                    type: array
+                    items:
+                        $ref: '#/components/schemas/AirQualityAlert'
+                fetchedAt:
+                    type: integer
+                    format: int64
+                    description: 'Warning: Values > 2^53 may lose precision in JavaScript'
+        AirQualityAlert:
+            type: object
+            properties:
+                city:
+                    type: string
+                countryCode:
+                    type: string
+                lat:
+                    type: number
+                    format: double
+                lng:
+                    type: number
+                    format: double
+                pm25:
+                    type: number
+                    format: double
+                aqi:
+                    type: integer
+                    format: int32
+                riskLevel:
+                    type: string
+                pollutant:
+                    type: string
+                measuredAt:
+                    type: integer
+                    format: int64
+                    description: 'Warning: Values > 2^53 may lose precision in JavaScript'
+                source:
+                    type: string