Marcel 1873f50f7f infra(mailpit): use nc -z healthcheck instead of wget ...

The mailpit service healthcheck previously assumed `wget` ships in
the axllent/mailpit image. That's true for v1.29.7 but is not part
of the image's contract — a future Alpine slim-down could drop wget
and silently disable the healthcheck. Switched to BusyBox `nc -z
localhost 8025`, which is a TCP-port open check with no dependency
beyond BusyBox itself.

Verified inside axllent/mailpit:v1.29.7 that `nc` is present
(/usr/bin/nc, BusyBox v1.37.0) and that the proposed command
returns 0 against an open port and non-zero against a closed one.
Compose still parses with `--profile staging`. Addresses @tobi's
round-2 suggestion on PR #499.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-05-11 14:08:23 +02:00

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