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-130-scanner-config-getchaingettokengetrpc-on-linear-scans.md

@@ -0,0 +1,38 @@
+---
+issue: 130
+title: "Scanner: Config.GetChain/GetToken/GetRPC O(N) linear scans — pre-index at load time"
+severity: low
+domain: Scanner
+labels: [performance, scanner]
+status: open
+created: 2026-05-30
+source: Full Codebase Audit 2026-05-30
+---
+
+# Scanner: Config.GetChain/GetToken/GetRPC O(N) linear scans — pre-index at load time
+
+**Severity:** low
+**Domain:** Scanner
+**Labels:** performance, scanner
+
+## Description
+
+`scanner/config.go:199` implements `GetChain`, `GetToken`, and `GetRPC` as linear scans over slices on every call. While chain count is small, these are called in hot paths (per-intent lookups). Pre-building maps at config load would eliminate all repeated scans.
+
+## Options
+
+1. Build maps (by chainId, token key) once at config load.
+2. Leave as-is given small chain count.
+3. Cache results per request.
+
+## Recommendation
+
+Build lookup maps at config load; trivial change but slightly alters config initialization.
+
+## Affected Files
+
+- `scanner/config.go:199`
+
+## References
+
+- [Full Codebase Audit 2026-05-30](../09%20-%20Audits/Full%20Codebase%20Audit%20-%202026-05-30.md) — DEC-69