- Replace Go interface{} with any (Go 1.18+ standard)
- Add database indexes to frequently queried model fields
- Add JSDoc documentation to frontend API client methods
- Remove deprecated docker-compose version keys
- Add concurrency groups to all 25 GitHub Actions workflows
- Add YAML front matter and fix H1→H2 headings in docs
Coverage: Backend 85.5%, Frontend 87.73%
Security: No vulnerabilities detected
Refs: docs/plans/instruction_compliance_spec.md
