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.

workplans/FIN-WP-0004-resource-cost-evidence-contract.md

@@ -8,7 +8,7 @@ status: active
 owner: codex
 topic_slug: financials
 created: "2026-08-10"
-updated: "2026-08-11"
+updated: "2026-08-15"
 related:
   - FIN-WP-0001
   - RESOURCE-WP-0002
@@ -198,6 +198,15 @@ The task now waits on `RESOURCE-WP-0002` procurement and the first real
 provider fact attributable to `platform:audit-storage`. Synthetic records test
 the contract but do not satisfy the operational booked-cost round trip.
 
+Progress 2026-08-15: resource-control commissioned the store on 2026-08-14
+and published technical usage for August (`data/actuals/2026-08.json`).
+`ingest_resource_usage` and `reconcile_resource_period` now join that
+usage to the 12-row forecast without inventing a booked amount. August
+reconciles as usage present, `missing_booked_fact: true`,
+`invented_zero: false`. Evidence:
+`docs/evidence/fin-wp-0004-t05-commissioning-2026-08.md`. T05 still
+waits on the first Scaleway charge or credit (expected 2026-09).
+
 ## T06 — Generalize and operate the contract
 
 ```task