build(deps): bump traefik from 3.6.6 to 3.6.7 in /compose/production/traefik

[dependabot]

Bumps traefik from 3.6.6 to 3.6.7.

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[claude]

Pull Request Review: Traefik 3.6.6 → 3.6.7

Summary

This is a Dependabot-generated PR that bumps the Traefik reverse proxy from version 3.6.6 to 3.6.7 in the production Docker configuration.

Code Quality ✅

• Clean change: Single-line version bump in the Dockerfile
• Minimal scope: Only affects the production Traefik image
• No functional changes: The build steps remain identical

Security Considerations ✅

• Patch version update: 3.6.6 → 3.6.7 indicates a patch release
• Reverse proxy updates are important: Traefik handles incoming traffic, so security patches should be applied promptly
• Recommendation: Review the Traefik 3.6.7 release notes to understand what security fixes or bug fixes are included

Testing Recommendations 🔍

Since this affects the production configuration:

1. CI/CD verification: Ensure all CI checks pass
2. Deployment testing: Test in a staging environment before merging to production
3. Smoke tests: After deployment, verify:
   • SSL/TLS certificate generation still works
   • Routing to backend services functions correctly
   • WebSocket proxying works (critical for /ws endpoints)
   • Health checks respond properly

Performance Considerations ✅

• No performance impact expected: Patch versions typically contain bug fixes, not performance regressions
• Image size: Should remain approximately the same

Test Coverage ⚠️

• No tests needed: Infrastructure dependency update
• However: Manual verification of deployment is recommended

Potential Risks ⚠️

• Low risk: Patch version updates are generally safe
• Breaking changes unlikely: Traefik maintains backward compatibility in patch releases
• Mitigation: The production deployment guide in CLAUDE.md emphasizes running migrations first, but this doesn't affect the database

Recommendations

1. ✅ Approve and merge - This is a standard dependency update
2. 🔍 Monitor after deployment - Watch logs for any Traefik-specific errors
3. 📋 Review release notes - Check what bugs/security issues were fixed
4. 🚀 Deploy during low-traffic period - As a precaution for production

Compliance with CLAUDE.md

• ✅ No test changes needed (infrastructure update)
• ✅ No TypeScript/pre-commit concerns
• ✅ No backend/frontend code affected
• ⚠️ Consider updating CHANGELOG.md if this fixes security vulnerabilities (check release notes first)

Final Verdict: APPROVED ✅

This is a straightforward dependency update with minimal risk. Dependabot PRs for patch versions are generally safe to merge after CI passes.