Add authenticated admin auth guard for DLQ and deploy operator endpoints

[mikewheeleer]

Description

Operator surfaces such as the DLQ in src/api/jobs.ts and any deploy-status endpoints must require admin authentication. Add an auth guard with API-key/JWT verification so unauthenticated callers cannot inspect or replay webhook payloads.

Requirements and context

• Verify API key or JWT (jsonwebtoken) with constant-time key comparison; reject with safe 401/403.
• Apply to DLQ list/replay and deploy/status routes registered in router.ts/app.ts.
• Redact credentials in logs via redact.ts; document required env and key rotation.
• Acceptance: integration tests cover missing, invalid, and valid credentials for each protected route.

Suggested execution

• Fork the repo and create a branch:
  • git checkout -b security/admin-auth-guard
• Implement changes:
  • src/api/jobs.ts
  • Tests: src/api/jobs.dlq.test.ts
  • Docs: docs/api-keys.md
  • Include TSDoc/NatSpec-style doc comments
  • Validate security assumptions (input validation, auth, signature verification, secret redaction, idempotency)

Test and commit

• Run tests: npm test (coverage: npm run test:ci)
• Cover edge cases
• Include test output and security notes in the PR

Example commit message

feat(security): require admin auth on DLQ and deploy endpoints

Guidelines

• Minimum 95% line coverage on new/changed code
• No secrets in repo; use .env + deployment secrets only
• Clear documentation
• Timeframe: 96 hours from assignment

[Abolax123]

@Abolax123 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hey maintainer, i can fix this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Abolax123 to this issue.

[drips-wave]

Congratulations, @Abolax123! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

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