[WIP] Implement read-only HTTP/JSON REST API for HLV-RAPS Flight Middleware

[Copilot]

REST API Implementation Complete ✓

All tasks completed successfully with comprehensive error handling:

• REST API server infrastructure
• API data snapshot structures
• All REST endpoints (health, state, pdt, dsm, supervisor, rollback, itl)
• Complete documentation and examples
• Full testing and validation
• All code review feedback addressed
  • Platform-specific char signedness issues fixed
  • Array initialization portability improved
  • Python documentation updated to use stdlib
  • Duplicate print statement removed
  • Critical socket error checking added (inet_pton, setsockopt)

Summary

Successfully implemented a read-only HTTP/JSON REST API for HLV-RAPS Flight Middleware:

✅ Observability-only - GET endpoints only, no control surfaces
✅ Thread-safe - Dedicated thread with mutex-protected data access
✅ Lightweight - POSIX sockets, no heavy dependencies
✅ LAN-accessible - Binds to 0.0.0.0:8080 by default
✅ Non-blocking - Does not interfere with governance loop
✅ Robust - Proper error handling for critical operations
✅ Well-documented - Complete API docs and working examples
✅ Tested - All endpoints verified, existing tests pass
✅ Code reviewed - All critical issues addressed

The implementation meets all requirements from the problem statement and is ready for integration.

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

[chatgpt-codex-connector]

You have reached your Codex usage limits for code reviews. You can see your limits in the Codex usage dashboard.