audit: 2026-05-30 full-codebase audit — report, issues, docs, runbooks

Full-codebase-audit 2026-05-30 outputs:
- Audit report: 09 - Audits/Full Codebase Audit - 2026-05-30.md
- 81 issue files ISSUE-055..135 (decisions + 1 skipped no-brainer).
- Scanner docs from scratch (was zero): architecture, data model, API ref, payment
  flow, operations runbook + repo README.
- Doc-sync updates across API reference, data models, flows, design system.
- Secret Rotation Runbook (08 - Operations) for the exposed credentials.
- Reusable workflow guide (07 - Development) + .claude/workflows/full-codebase-audit.js.

Issues remain status:open intentionally — the code fixes are uncommitted-then-committed
working-tree changes per repo and aren't "resolved" until merged/deployed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Issues/ISSUE-068-backend-datacleanuservice-deletes-payments-without-provider-sco.md

@@ -0,0 +1,41 @@
+---
+issue: 068
+title: "Backend: dataCleanupService deletes Payments without provider scoping — risk of destroying escrow records"
+severity: high
+domain: Admin
+labels: [security, backend, data-loss, escrow]
+status: open
+created: 2026-05-30
+source: Full Codebase Audit 2026-05-30
+---
+
+# Backend: dataCleanupService deletes Payments without provider scoping — risk of destroying escrow records
+
+**Severity:** high
+**Domain:** Admin
+**Labels:** security, backend, data-loss, escrow
+
+## Description
+
+`dataCleanupService.ts:121` deletes Payment documents without filtering by `provider`. Request Network and SHKeeper escrow payments are webhook-driven and can take hours to confirm. Sweeping them deletes the ledger records that webhooks need to reconcile, silently destroying multi-seller cart records.
+
+This matches the project memory note: "Any Payment-collection cleanup/orphan query MUST scope by `provider:`."
+
+## Options
+
+1. Scope all payment deletes by provider (exclude `request.network`/`shkeeper` escrow records).
+2. Soft-delete instead of hard delete for payments.
+3. Disallow payment-collection cleanup entirely from this tool.
+
+## Recommendation
+
+Require provider scoping on every payment delete and prefer soft-delete; never sweep escrow-driven records. This is a data-loss risk.
+
+## Affected Files
+
+- `backend/src/services/admin/dataCleanupService.ts:121`
+
+## References
+
+- [Full Codebase Audit 2026-05-30](../09%20-%20Audits/Full%20Codebase%20Audit%20-%202026-05-30.md) — DEC-38
+- Project memory: `feedback_payment_cleanup_provider_filter.md`