run stdout not consistently streamed to the terminal inline (only reliable via `moat logs`)

[dpup]

Summary

moat run sometimes prints the container's stdout inline after Press Ctrl+C to stop, and sometimes prints nothing — the output is then only retrievable via moat logs <run-id>. Same command, same example, different runs.

Repro

• moat run examples/grant-github-nossh repeatedly. Some invocations show the script output inline; others show only the Started … / View output: lines and require moat logs <id> to see anything.

Environment

• macOS, ghostty terminal (cmux).

Notes

• Observed across many non-interactive (no -i), short-lived container runs while validating github grant injects Bearer for github.com, but git smart-HTTP requires Basic — HTTPS git fetch/push still broken (follow-up to #180) #370. Possibly a race between container exit / log flush and the host attach/stream path (inline stream vs storage.LogWriter capture).