security(avow-protocol): remove leaked Cloudflare API token + harden scanner

[hyperpolymath]

Summary

• Removes a real Cloudflare API token hardcoded at avow-protocol/deploy-repos.sh:5 (committed in 5f2f8b2 on 2026-05-18, reported externally on 2026-05-21).
• Script now sources CLOUDFLARE_API_TOKEN / CLOUDFLARE_ACCOUNT_ID from env with a hard-fail if unset — same pattern used in avow-protocol/deploy-cloudflare.sh.
• Redacts the account ID from DEPLOYMENT-SUCCESS.md.
• Adds a shell-secrets job to secret-scanner.yml (mirrors the existing rust-secrets job). The existing trufflehog --only-verified + gitleaks-action defaults both missed this leak at PR time; the new grep-based job would have caught it (self-tested locally).

Owner action required (out of band, not in this PR)

1. Rotate the leaked token at Cloudflare → My Profile → API Tokens. Token id 689fa59a165c47cc61095d984c453205. The repo is public; assume the secret is burned regardless of any history rewrite.
2. History rewrite + force-push of all branches containing 5f2f8b2 — being tracked separately in the session that opened this PR. Affected refs: main, chore/standards-67-68-enforcement-docs, feat/spark-theatre-gate-135, fix/ssh-remote-enforcement, licence-debt/{07-spdx-value-normalise,a8-owner-carveouts,batch-a-policy-addendum,restore-a6-a7}, licensing/canonicalize-constitution, nix-retirement-closure-102.

Test plan

• CI: new shell-secrets job runs and passes on the cleaned tree
• CI: trufflehog and gitleaks jobs continue to pass
• Manual: confirm the regex flags the leaked line on a hand-crafted fixture (verified locally before push)
• After merge: complete owner actions above

Generated with Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 101 issues detected

Severity	Count
🔴 Critical	63
🟠 High	28
🟡 Medium	10

⚠️ Action Required: Critical security issues found!

View findings

[
  {
    "reason": "Issue in quality.yml",
    "type": "missing_workflow",
    "file": "quality.yml",
    "action": "create",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Issue in security-policy.yml",
    "type": "missing_workflow",
    "file": "security-policy.yml",
    "action": "create",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action hyperpolymath/standards/.github/workflows/governance-reusable.yml@main needs attention",
    "type": "unpinned_action",
    "file": "governance-reusable.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Action hyperpolymath/standards/.github/workflows/governance-reusable.yml@main needs attention",
    "type": "unpinned_action",
    "file": "governance.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Python file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/standards/standards/a2ml-templates/state-scm-to-v2.py",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/standards/standards/a2ml/bindings/deno/mod.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/standards/standards/lol/test/vitest.config.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/standards/standards/k9-svc/bindings/deno/mod.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "believe_me undermines formal verification (1 occurrences, CWE-704)",
    "type": "believe_me",
    "file": "/home/runner/work/standards/standards/lol/src/abi/Locale.idr",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "critical"
  },
  {
    "reason": "Wildcard CORS -- restrict to specific origins or use env var (1 occurrences, CWE-942)",
    "type": "js_wildcard_cors",
    "file": "/home/runner/work/standards/standards/consent-aware-http/examples/reference-implementations/deno/aibdp_middleware.js",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "high"
  }
]

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