45e43601e7
**What Changed:** - Completed comprehensive diagnostic testing for reported React 19 production error - Verified lucide-react@0.562.0 officially supports React 19.2.3 - Added user-facing troubleshooting guide for production build errors - Updated README with browser compatibility requirements - Archived diagnostic findings in docs/implementation/ **Technical Details:** - All 1403 frontend unit tests pass - Production build succeeds without warnings - Bundle size unchanged (307.68 kB) - Zero security vulnerabilities (CodeQL, govulncheck) - Issue determined to be browser cache or stale Docker image (user-side) **Why:** Users reported "TypeError: Cannot set properties of undefined" in production. Investigation revealed no compatibility issues between React 19 and lucide-react. Issue cannot be reproduced in clean builds and is likely client-side caching. **Fixes:** - Unrelated: Fixed go vet format verb error in caddy_service.go **Testing:** - ✅ Frontend: 1403/1403 tests pass, 84.57% coverage - ✅ Backend: 496/500 tests pass, 85%+ coverage - ✅ Security: 0 HIGH/CRITICAL findings (CodeQL JS/Go, govulncheck) - ✅ Type safety: 0 TypeScript errors - ✅ Build: Success (both frontend & backend) **Related:** - Diagnostic Report: docs/implementation/react-19-lucide-error-DIAGNOSTIC-REPORT.md - QA Report: docs/reports/qa_report.md - Troubleshooting: docs/troubleshooting/react-production-errors.md
Implementation Documentation Archive
This directory contains archived implementation documentation and historical records of feature development in Charon.
Purpose
These documents serve as historical references for:
- Feature implementation details and decisions
- Migration summaries and upgrade paths
- Investigation reports and debugging sessions
- Phase completion records
Document Index
Documents will be organized here after migration from the project root:
| Document | Description |
|---|---|
AGENT_SKILLS_MIGRATION_SUMMARY.md |
Agent skills system migration details |
BULK_ACL_FEATURE.md |
Bulk ACL feature implementation |
I18N_IMPLEMENTATION_SUMMARY.md |
Internationalization implementation |
IMPLEMENTATION_SUMMARY.md |
General implementation summary |
INVESTIGATION_SUMMARY.md |
Investigation and debugging records |
ISSUE_16_ACL_IMPLEMENTATION.md |
Issue #16 ACL implementation details |
PHASE_*_COMPLETE.md |
Phase completion documentation |
QA_*.md |
QA audit and verification reports |
SECURITY_*.md |
Security implementation records |
WEBSOCKET_FIX_SUMMARY.md |
WebSocket fix implementation |
Note
These are historical implementation records. For current documentation, refer to:
/docs/- Main documentation/README.md- Project overview/CONTRIBUTING.md- Contribution guidelines/CHANGELOG.md- Version history