xfy 6c538a1a56 feat(server,proxy): integrate Request-ID into middleware chain and proxy forwarding
- Register requestid.New() as first middleware in buildMiddlewareChain
  (before AccessLog) so the ID is available for logging
- Add SetRequestIDHeader() in proxy/headers.go to propagate X-Request-ID
  to upstream via proxy forwarding
- Call SetRequestIDHeader in header_modifier.go after SetForwardedHeaders
- Import requestid package in middleware_builder and proxy/headers
2026-06-11 23:41:30 +08:00
..