chore: add HEALTHCHECK to Dockerfile - #334
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summary
adds a
HEALTHCHECKinstruction to the Dockerfile so docker and docker compose surface container health status automatically.uses
wget(already present in the debian base image) against the/healthendpoint on the metrics port (9100). the metrics port is exposed by default so this works without any extra flags.what was tested
the
/healthendpoint on port 9100 has been in place since PR #310. the healthcheck just wires it up at the docker layer.