* fix(docker): make wait-for-api.sh POSIX and enforce LF line endings (#586)
* fix: restore inline comment on final exit 0
Addresses review feedback: the comment on the final `exit 0` explains
a non-obvious design decision (frontend still starts when the API
never became ready, so users get a usable UI with connection errors
rather than a dead container).
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Co-authored-by: Luis Novo <lfnovo@gmail.com>
