[dantebalor]

closes #1373

• Export a Logger interface (debug, info, warn, error) from middleware/structuredLogging.ts so modules can type injected loggers without coupling to the private implementation class.
• Rename private class to LoggerImpl implements Logger to avoid the name collision; logger singleton typed as Logger.
• Add src/alerting.ts: protocol-level alerting service that calls logger.error() for critical alerts and logger.warn() for warnings.
• Add src/exposureGuardrails.ts: backend enforcement of protocol risk limits (TVL cap, concentration cap, deployed capital cap, stress-mode tightening) per docs/PROTOCOL_RISK_LIMITS.md, using logger.warn() on rejected checks.
• Add 24-test suite alertingAndGuardrails.test.ts covering both modules including compile-time Logger interface checks.
• Fix backend/jest.config.js: add moduleNameMapper for .prisma/client to unblock Jest resolution in pnpm workspaces.

Pull Request Template

📋 Description

Goal

Changes

🔗 Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)
• 🌊 Wave submission (contract migration, architectural wave release, or protocol upgrade)
• 📚 Documentation update
• 🔒 Security improvement
• ⚡ Performance optimization

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🛡️ Risk Assessment

Risk Level

• 🟢 Low: Non-breaking change, documentation, style, or isolated helper refactoring
• 🟡 Medium: API enhancement, frontend workflow update, non-critical dependency upgrade
• 🟠 High: Core contract logic change, access control modification, financial accounting / share math
• 🔴 Critical: Wave submission, contract storage migration, protocol upgrade touching vault funds

Blast Radius & Impact Analysis

• Contract storage layout / data key migration involved
• Value transfer, deposit/withdraw flow, or vault share calculation affected
• External integration (Oracle, Soroban RPC, Bridge, Token contract) affected
• Database schema migration or data backfill required
• Breaking API or interface change affecting downstream clients
• Zero blast radius (isolated tooling / documentation only)

Detailed Risk & Blast Radius Notes:

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🔄 Rollback Plan

Rollback Strategy & Feasibility

• Clean Git Revert: Revertable with zero persistent state drift
• Contract Upgrade Rollback: Tested rollback to previous contract WASM hash / implementation
• Database Migration Revert: Reversible migration down-script tested and verified
• Feature Flag / Circuit Breaker: Feature can be toggled off instantly without redeployment
• Emergency Pause: Contract pause / freeze mechanism available to halt affected functions
• Forward-Only / Irreversible: State migration cannot be cleanly reversed; emergency recovery runbook linked below

Rollback Trigger Criteria

Step-by-Step Rollback Procedure

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⚡ Performance Impact

Performance & Resource Assessment

• Smart contract gas / compute units benchmarked (no regression > 5%, or justified below)
• Backend API latency (p95/p99) and database query execution plans verified
• Database indexing verified for newly queried columns (no table scans)
• Frontend bundle size and Time to Interactive (TTI) verified
• Memory allocation and leak checks verified (no memory leaks in long-running services)
• No measurable performance impact (documentation, tests, or trivial changes)

Performance & Gas Profiling Summary:

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🔒 SECURITY REVIEW (⭐ MANDATORY FOR SMART CONTRACT CHANGES)

For all smart contract code changes, complete the following checklist.

See docs/SECURITY_CHECKLIST.md for detailed guidance.

Required: Security Checklist Sign-Off

• I have reviewed this PR against the Internal Security Checklist (docs/SECURITY_CHECKLIST.md)

  • Reentrancy: Verified Checks-Effects-Interactions (CEI) pattern
  • Access Control: Confirmed all sensitive functions are protected (onlyOwner, onlyRole(), etc.)
  • Input Validation: Validated all parameters have appropriate bounds checks
  • Unchecked Returns: All external calls have return value checks (require(success, ...))
  • Gas Limits: No unbounded loops or potential DOS vectors

  If any checkbox cannot be verified, explain below:

Slither Static Analysis Results

• Ran Slither locally: slither . --config-file slither.config.json

  • Result: ✅ No High/Medium findings OR 🟡 Documented false positives (see below)

• GitHub Actions Slither workflow passed:

  • 🟢 All High/Medium findings fixed OR
  • 🟡 All false positives documented with FP references

  If this PR has security findings, document them below:

Handling Security Findings

Option A: Fixed in This PR ✅

• Vulnerability identified and resolved
• Test case added to verify fix
• Explain fix below:

Option B: False Positive 🟡

• Identified as false positive (tool limitation or misleading check)
• Added entry to contracts/.false-positives.md with:
  • Detector rule name
  • Technical reasoning (3+ sentences why it's safe)
  • Evidence (code snippet, test case, or reference)
• Reference number (e.g., FP-001):

• Inline suppression added to code:

  // slither-disable-next-line <detector-name>
  // Reason: [one-line reason]

Option C: Accepted Risk ⚠️

• Acknowledged as low-priority style issue (naming conventions, etc.)
• Added to Slither exclusions
• Explain below:

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📝 Testing

Functional Testing

• Unit tests added/updated for changes
• Integration tests passing
• End-to-end (E2E) tests passing
• Manual testing completed and documented below:

Security Testing

• For state-changing functions:

  • Reentrancy test (if applicable): Verify re-entry is blocked
  • Access control test: Verify unauthorized access is rejected
  • Boundary / Edge-case test: Verify limits, zero-amounts, and rounding behavior

• For external integrations:

  • Return value verification test
  • Failure / timeout scenario test

Test Coverage

• All new code paths have test coverage
• Security-critical paths have comprehensive test cases
• Coverage report:

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🚀 Deployment Notes

Mainnet Readiness

• This code is ready for production deployment
• All critical tests pass
• Security review approved
• No temporary debug code
• No TODO comments

Breaking Changes

If this PR introduces breaking changes:

• Migration guide provided
• Deprecation period defined: [timeframe]
• Legacy code deprecated with warnings

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📊 Automated Scan Results

Slither Analysis

• ✓ Status:
• 🔴 High/Medium findings: 0
• 🟡 Low/Informational findings: 0

Related Documentation

• Security Checklist — Use for code review
• False Positive Process — For non-vulnerabilities
• Slither Configuration — Current scanner settings

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✅ Reviewer Checklist

For code reviewers (use this to guide your review):

• PR author completed Risk Assessment and Rollback Plan ✓
• Performance and gas impact evaluated and verified ✓
• PR author completed security checklist ✓
• All findings documented and categorized (fixed/false positive/excluded)
• Inline security comments are clear and justified
• Tests cover security-critical code paths
• No external calls bypass return value checks
• Access control is properly enforced
• State updates follow CEI pattern
• Input validation is comprehensive
• Follow-up actions (if any) tracked in issues

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📞 Questions or Issues?

• 🤔 Confused about security checklist? → See docs/SECURITY_CHECKLIST.md
• 🔍 Marking finding as false positive? → Follow docs/FALSE_POSITIVE_HANDLING.md
• 🆘 Need security review help? → Tag @security-team in comments

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📋 Pre-Submit Checklist

Before marking PR as ready for review:

• Description, Goal, and Changes are clearly stated
• Risk Assessment completed with appropriate risk tier and blast radius
• Rollback Plan completed with concrete steps and trigger criteria
• Performance Impact assessed with gas / compute benchmarks
• All security checklist items checked (✅ or explanation provided)
• All tests passing locally: npm test
• Linter passing: npm run lint
• Slither passing locally OR findings documented: slither . --config-file slither.config.json
• Code follows project style guide
• No merge conflicts
• Commits are clean and well-documented
• Branch is up-to-date with main/develop
• For release PRs: docs/RELEASE_READINESS_CHECKLIST.md completed and linked in PR description

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✅ Ready for Review? Ensure all items above are checked before requesting review.