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tegwick ac0949afd0
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feat: join audit-storage usage without inventing a booked Scaleway fact 
Ingest resource-control's August technical usage, omit nulls, and
reconcile forecast + usage + booked facts. Commissioning month reports
missing_booked_fact instead of 0.00. T05 still waits on the first invoice.
2026-08-15 20:32:55 +02:00

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FIN-WP-0004-T05 — commissioning-period join, 2026-08

Date: 2026-08-15 Resource: resource:platform:audit-storage Attribution key: platform:audit-storage

What exists

Record Count Authority
Forecast (base, 2026-09 … 2027-08) 12 rows resource-control
Technical usage 2026-08 1 row resource-control
Booked Scaleway fact 2026-08 0 fin-hub

The object store was commissioned 2026-08-14. resource-control’s usage record carries infrastructure_eur: null and names fin-hub as the owner of that gap. There is no invoice. A null is not booked as 0.00.

Join result

ingest_resource_usage stores only measured quantities (database_gb, stored_gb, backup_success_pct, restore_rto_minutes). Null usage fields and the missing infrastructure amount remain gaps in source_evidence.

reconcile_resource_period for 2026-08 reports:

  • usage present
  • missing_booked_fact: true
  • booked_effective_amount: null
  • invented_zero: false

exchange_health raises usage_without_booked_fact for this period.

Why T05 stays open

The done criterion is: the same cost booked once, projected, joined to technical evidence, and returned without a second ledger. That cost does not exist yet. The first comparable Scaleway invoice period is 2026-09. This note is the commissioning baseline, not closure.

When a provider charge or credit lands, book it once, bind financial_fact_id → resource:platform:audit-storage, and rerun ledger reconcile-resource --period 2026-09.