`mise run runner-logs <run> -j <n>` previously silently succeeded with
no output when forgejo had no log for the task. Two layered causes:
1. zstdcat exits 0 even when the file is missing (writes "can't stat
… -- ignored" to stderr).
2. ssh to indri runs fish, which silently drops the remote exit code so
the subprocess returncode is always 0.
Probe `test -f` over SSH and parse a stdout marker (EXISTS / MISSING) to
detect the missing-log case, then report it explicitly with the indri
path and a hint about action_task.log_in_storage = 0 so the operator
knows where to look next.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
