- Run an out-of-process preflight dlopen and initialization probe before mapping dynamic plugin libraries into the host process so fatal signals such as SIGILL do not crash-loop the gateway.
- Cache only deterministic probe outcomes with bounded stderr collection and non-blocking stdio handling across inherited child descriptors.
- Pin baseline Go and CGO CPU architecture flags in the plugin example build recipe and document baseline ISA flags for prebuilt c-shared plugin releases.
Closes: #7220
